Groupdocs API References – GroupDocs.Metadata.Common

Net: ByteOrder

Mon, 01 Jan 0001 00:00:00 +0000

ByteOrder enumeration

Defines various byte orders.

public enum ByteOrder

Values

Name	Value	Description
Unknown	`0`	The byte order is unknown.
BigEndian	`1`	Big endian.
LittleEndian	`2`	Little endian.

Net: CustomPackage

Mon, 01 Jan 0001 00:00:00 +0000

CustomPackage class

Provides a container for metadata properties.

public abstract class CustomPackage : MetadataPackage

Properties

Name	Description
Count { get; }	Gets the number of metadata properties.
Item { get; }	Gets the `MetadataProperty` with the specified name.
Keys { get; }	Gets a collection of the metadata property names.
MetadataType { get; }	Gets the metadata type.
PropertyDescriptors { get; }	Gets a collection of descriptors that contain information about properties accessible through the GroupDocs.Metadata search engine.

Methods

Name	Description
virtual AddProperties(Func<MetadataProperty, bool>, PropertyValue)	Adds known metadata properties satisfying the specified predicate. The operation is recursive so it affects all nested packages as well.
Contains(string)	Determines whether the package contains a metadata property with the specified name.
virtual FindProperties(Func<MetadataProperty, bool>)	Finds the metadata properties satisfying the specified predicate. The search is recursive so it affects all nested packages as well.
GetEnumerator()	Returns an enumerator that iterates through the collection.
virtual RemoveProperties(Func<MetadataProperty, bool>)	Removes metadata properties satisfying the specified predicate.
virtual Sanitize()	Removes writable metadata properties from the package. The operation is recursive so it affects all nested packages as well.
virtual SetProperties(Func<MetadataProperty, bool>, PropertyValue)	Sets known metadata properties satisfying the specified predicate. The operation is recursive so it affects all nested packages as well. This method is a combination of `AddProperties` and `UpdateProperties`. If an existing property satisfies the predicate its value is updated. If there is a known property missing in the package that satisfies the predicate it is added to the package.
virtual UpdateProperties(Func<MetadataProperty, bool>, PropertyValue)	Updates known metadata properties satisfying the specified predicate. The operation is recursive so it affects all nested packages as well.

Net: DocumentInfo

Mon, 01 Jan 0001 00:00:00 +0000

DocumentInfo class

Provides common information about a loaded document.

public class DocumentInfo : IDocumentInfo

Properties

Name	Description
FileType { get; }	Gets the file type of the loaded document.
IsEncrypted { get; }	Gets a value indicating whether the document is encrypted and requires a password to open.
PageCount { get; }	Gets the number of pages (slides, worksheets, etc) in the loaded document.
Pages { get; }	Gets a collection of objects representing common information about the document pages (slides, worksheets, etc).
Size { get; }	Gets the size of the loaded document in bytes.

Remarks

Learn more

Get document info

Examples

This example demonstrates how to extract basic format information from a file.

using (Metadata metadata = new Metadata(Constants.InputXlsx))
{
    if (metadata.FileFormat != FileFormat.Unknown)
    {
        IDocumentInfo info = metadata.GetDocumentInfo();

        Console.WriteLine("File format: {0}", info.FileType.FileFormat);
        Console.WriteLine("File extension: {0}", info.FileType.Extension);
        Console.WriteLine("MIME Type: {0}", info.FileType.MimeType);
        Console.WriteLine("Number of pages: {0}", info.PageCount);
        Console.WriteLine("Document size: {0} bytes", info.Size);
        Console.WriteLine("Is document encrypted: {0}", info.IsEncrypted);
    }
}

Net: FileFormat

Mon, 01 Jan 0001 00:00:00 +0000

FileFormat enumeration

Represents the recognized format of a loaded file.

public enum FileFormat

Values

Name	Value	Description
Unknown	`0`	The file type is not recognized.
Presentation	`1`	A presentation file. You must be familiar with PPTX and PPT extension files while working with Microsoft PowerPoint. These are Presentation file formats that store collection of records to accommodate presentation data such as slides, shapes, text, animations, video, audio and embedded objects. Learn more about this file format here.
Spreadsheet	`2`	A spreadsheet file. A spreadsheet file contains data in the form of rows and columns. You can open, view and edit such files using spreadsheet software applications such as Microsoft Excel that is now available for both Windows and MacOS operating system. Similarly, Google sheets is a free online spreadsheet creating and editing tool that works from any web browser. Learn more about this file format here.
WordProcessing	`3`	A word processing file. A word processing file contains user information in plain text or rich text format. A plain text file format contains unformatted text and no font or page settings etc. can be applied. In contrast, a rich text file format allows formatting options such as setting fonts type, styles (bold, italic, underline, etc.), page margins, headings, bullets and numbers, and several other formatting features. Learn more about this file format here.
Diagram	`4`	A diagram file.
Note	`5`	An electronic note file. Note-taking programs such as Microsoft OneNote lets you create, open and edit notes files that contain sections and pages for storing notes. A note document can be as simple as a text document as well as more detailed consisting of digital images, audio/video clips, and hand sketch drawings. Learn more about this file format here.
ProjectManagement	`6`	A project management format. Have you ever come across and wondered what is an MPP file or how to open it? MPP and other similar files are Project file formats that are created by Project Management software such as Microsoft Project. A project file is a collection of tasks, resources, and their scheduling to get a measurable output in the form or a product or a service. Learn more about this file format here.
Pdf	`7`	A PDF file. Portable Document Format (PDF) is a type of document created by Adobe back in 1990s. The purpose of this file format was to introduce a standard for representation of documents and other reference material in a format that is independent of application software, hardware as well as Operating System. Learn more about this file format here.
Tiff	`8`	A TIFF image. TIFF or TIF, Tagged Image File Format, represents raster images that are meant for usage on a variety of devices that comply with this file format standard. Learn more about this file format here.
Jpeg	`9`	A JPEG image. JPEG is a type of image format that is saved using the method of lossy compression. Learn more about this file format here.
Psd	`10`	A PSD image. PSD, Photoshop Document, represents Adobe Photoshop’s native file format used for graphics designing and development. PSD files may include image layers, adjustment layers, layer masks, annotations, file information, keywords and other Photoshop-specific elements. Learn more about this file format here.
Jpeg2000	`11`	A Jpeg2000 image. JPEG 2000 (JPX) is an image coding system and state-of-the-art image compression standard. Designed, using wavelet technology JPEG 2000 can code lossless content in any quality at once. Learn more about this file format here.
Gif	`12`	A GIF image. A GIF or Graphical Interchange Format is a type of highly compressed image. Learn more about this file format here.
Png	`13`	A PNG image. PNG, Portable Network Graphics, refers to a type of raster image file format that use lossless compression. Learn more about this file format here.
Bmp	`14`	A BMP image. Files having extension .BMP represent Bitmap Image files that are used to store bitmap digital images. These images are independent of graphics adapter and are also called device independent bitmap (DIB) file format. Learn more about this file format here.
Dicom	`15`	A DICOM image. DICOM is the acronym for Digital Imaging and Communications in Medicine and pertains to the field of Medical Informatics. DICOM is the combination of file format definition and a network communications protocol. Learn more about this file format here .
WebP	`16`	A WEBP image. WebP, introduced by Google, is a modern raster web image file format that is based on lossless and lossy compression. It provides same image quality while considerably reducing the image size. Learn more about this file format here.
Emf	`17`	An EMF image. Enhanced metafile format (EMF) stores graphical images device-independently. Metafiles of EMF comprises of variable-length records in chronological order that can render the stored image after parsing on any output device. Learn more about this file format here.
Wmf	`18`	A WMF image. Files with WMF extension represent Microsoft Windows Metafile (WMF) for storing vector as well as bitmap-format images data. To be more accurate, WMF belongs to the vector file format category of Graphics file formats that is device independent. Learn more about this file format here.
DjVu	`19`	A DjVu file. DjVu is a graphics file format intended for scanned documents and books especially those which contain the combination of text, drawings, images and photographs. It was developed by AT&T Labs. Learn more about this file format here.
Wav	`20`	A WAV audio file. WAV, known for WAVE (Waveform Audio File Format), is a subset of Microsoft’s Resource Interchange File Format (RIFF) specification for storing digital audio files. The format doesn’t apply any compression to the bitstream and stores the audio recordings with different sampling rates and bitrates. Learn more about this file format here.
Mp3	`21`	An Mp3 audio file. Files with MP3 extension are digitally encoded file formats for audio files that are formally based on the MPEG-1 Audio Layer III or MPEG-2 Audio Layer III. It was developed by the Moving Picture Experts Group (MPEG) that uses Layer 3 audio compression. Learn more about this file format here.
Avi	`22`	An AVI video. The AVI file format is an Audio Video multimedia container file format that was introduced by Microsoft. It holds the audio and video data created and compressed using several codecs (Coders/Decoders) such as Xvid and DivX. Learn more about this file format here.
Flv	`23`	An FLV video.
Asf	`24`	An ASF video. The Advanced Systems Format (ASF) is a digital multimedia container designed primarily for storing and transmitting media streams. Microsoft Windows Media Video (WMV) is the compressed video format and Microsoft Windows Media Audio (WMA) is the compressed audio format along with additional metadata in the ASF container developed by Microsoft. Learn more about this file format here.
Mov	`25`	A QuickTime video. Mov or QuickTime File format is multimedia container which is developed by Apple: contains one or more tracks, each track holds a particular type of data i.e. Video, Audio, text etc. Mov format is compatible both in Windows and Macintosh systems. Learn more about this file format here.
Matroska	`26`	A video encoded with the Matroska multimedia container.
Zip	`27`	A ZIP archive. ZIP file extension represents archives that can hold one or more files or directories. The archive can have compression applied to the included files in order to reduce the ZIP file size. ZIP file format was made public back in February 1989 by Phil Katz for achieving archiving of files and folders. Learn more about this file format here.
SevenZip	`28`	7z is a compressed archive file format that supports several different data compression, encryption and pre-processing algorithms. The 7z format initially appeared as implemented by the 7-Zip archiver. The 7-Zip program is publicly available under the terms of the GNU Lesser General Public License.
VCard	`29`	A VCard file. VCF (Virtual Card Format) or vCard is a digital file format for storing contact information. The format is widely used for data interchange among popular information exchange applications. Learn more about this file format here.
Epub	`30`	An EPUB electronic book. Files with .EPUB extension are an e-book file format that provide a standard digital publication format for publishers and consumers. The format has been so common by now that it is supported by many e-readers and software applications. Learn more about this file format here.
OpenType	`31`	An OpenType font.
Dxf	`32`	A DXF (Drawing Exchange Format) drawing. DXF, Drawing Interchange Format, or Drawing Exchange Format, is a tagged data representation of AutoCAD drawing file. Each element in the file has a prefix integer number called a group code. Learn more about this file format here.
Dwg	`33`	A DWG drawing. Files with DWG extension represent proprietary binary files used for containing 2D and 3D design data. Like DXF, which are ASCII files, DWG represent the binary file format for CAD (Computer Aided Design) drawings. Learn more about this file format here.
Eml	`34`	An EML email message. EML file format represents email messages saved using Outlook and other relevant applications. Almost all emailing clients support this file format for its compliance with RFC-822 Internet Message Format Standard. Learn more about this file format here.
Msg	`35`	An MSG email message. MSG is a file format used by Microsoft Outlook and Exchange to store email messages, contact, appointment, or other tasks. Such messages may contain one or more email fields, with the sender, recipient, subject, date, and message body, or contact information, appointment particulars, and one or more task specifications. Learn more about this file format here.
Torrent	`36`	A torrent file that contains metadata about files and folders to be distributed.
Heif	`37`	A HEIF/HEIC image.
Dng	`38`	A dng RAW image.
Cr2	`39`	A CR2 image.
Rar	`40`	RAR is a proprietary archive file format that supports data compression, error correction and file spanning.
Tar	`41`	In computing, tar is a computer software utility for collecting many files into one archive file, often referred to as a tarball, for distribution or backup purposes.
ThreeDS	`42`	3DS is one of the file formats used by the Autodesk 3ds Max 3D modeling, animation and rendering software.
Dae	`43`	A DAE file is a Digital Asset Exchange file format that is used for exchanging data between interactive 3D applications.
Fbx	`44`	FBX (Filmbox) is a proprietary file format (.fbx) developed by Kaydara and owned by Autodesk since 2006. It is used to provide interoperability between digital content creation applications. FBX is also part of Autodesk Gameware, a series of video game middleware.
Stl	`45`	STL is a file format native to the stereolithography CAD software created by 3D Systems.[3][4][5] Chuck Hull, the inventor of stereolithography and 3D Systems’ founder, reports that the file extension is an abbreviation for stereolithography.
Gis	`46`	Gis file.
Fb2	`47`	Files with .fb2 extension are FictionBook 2.0 eBook files that contains the structure of the eBook. It is based on XML format and contains special tags for describing each element of the book. It was developed primarily for fictional writings and literature, but is not limited to these only. The format accommodates all the metadata as well as content in itself and allows flexibility for a number of operations such as automatic processing, indexing, and conversion to other formats. In short, it focuses on describing the structure of the file instead of specifying its appearance. Several applications as well as APIs are available to convert FB2 to several other formats on Windows, MacOS, and Linux. Learn more about this file format here.
Mobi	`48`	The MOBI file format is one of the most widely used ebook file formats. The format is an enhancement to the old OEB (Open Ebook Format) format and was used as the proprietary format for Mobipocket Reader.
Ogg	`49`	OGG is an Ogg Vorbis Compressed Audio File that is saved with the .ogg extension. OGG files are used for storing audio data and can include artist and track information and metadata as well. OGG is a free and open container format that is maintained by Xiph.Org Foundation.
Svg	`50`	Scalable Vector Graphics (SVG) is an XML-based vector graphics format for defining two-dimensional graphics, having support for interactivity and animation. The SVG specification is an open standard developed by the World Wide Web Consortium since 1999.
Gltf	`51`	glTF (Graphics Library Transmission Format or GL Transmission Format and formerly known as WebGL Transmissions Format or WebGL TF) is a standard file format for three-dimensional scenes and models. A glTF file uses one of two possible file extensions: .gltf (JSON/ASCII) or .glb (binary).
Avif	`52`	AV1 Image File Format (AVIF) is an open, royalty-free image file format specification for storing images or image sequences compressed with AV1 in the HEIF container format.

Net: FileType

Mon, 01 Jan 0001 00:00:00 +0000

FileType class

Represents the file type.

public class FileType

Properties

Name	Description
Description { get; }	Gets the file type description.
Extension { get; }	Gets the file extension.
FileFormat { get; }	Gets the file format.

Methods

Name	Description
static FromExtension(string)	Gets FileType for provided fileExtension
override ToString()	Returns a String that represents the current `FileType`.
static GetSupportedFileTypes()	Retrieves supported file types.

Fields

Name	Description
static readonly ASF	The Advanced Systems Format (ASF) is a digital multimedia container designed primarily for storing and transmitting media streams. Microsoft Windows Media Video (WMV) is the compressed video format and Microsoft Windows Media Audio (WMA) is the compressed audio format along with additional metadata in the ASF container developed by Microsoft. Learn more about this file format here.
static readonly AVI	The AVI file format is an Audio Video multimedia container file format that was introduced by Microsoft. Learn more about this file format here.
static readonly BMP	Files having extension .BMP represent Bitmap Image files that are used to store bitmap digital images. These images are independent of graphics adapter and are also called device independent bitmap (DIB) file format. Learn more about this file format here.
static readonly CBRAR	A Comic Book Archive(CBA) file, also known as Comic Book Archive or Comic Book Reader file, is a popular format used to store and distribute digital comic books. It typically contains collection of individual comic book pages or images bundled together in single file for easy organization and reading. here.
static readonly CBSEVEN	A CB7 file refers to Comic Book 7-Zip Archive. It is compressed file format commonly used for storing and distributing comic book collections digitally. CB7 files are created using 7-Zip compression software, which is known for its high compression ratio. here.
static readonly CBTAR	A Comic Book Archive(CBA) file, also known as Comic Book Archive or Comic Book Reader file, is a popular format used to store and distribute digital comic books. It typically contains collection of individual comic book pages or images bundled together in single file for easy organization and reading. here.
static readonly CBZIP	A Comic Book Archive(CBA) file, also known as Comic Book Archive or Comic Book Reader file, is a popular format used to store and distribute digital comic books. It typically contains collection of individual comic book pages or images bundled together in single file for easy organization and reading. here.
static readonly CR2	The .CR2 file format (Canon RAW version 2) is a digital photography RAW format created by Canon. here.
static readonly CRW	The .CRW file format is a digital photography RAW format created by Canon. here.
static readonly DAE	A DAE file is a Digital Asset Exchange file format that is used for exchanging data between interactive 3D applications. here.
static readonly DICOM	DICOM is the acronym for Digital Imaging and Communications in Medicine and pertains to the field of Medical Informatics. DICOM is used for the integration of medical imaging devices like printers, servers, scanners etc from various vendors and also contains identification data of each patient for uniqueness. Learn more about this file format here.
static readonly DJV	DjVu is a graphics file format intended for scanned documents and books especially those which contain the combination of text, drawings, images and photographs. Learn more about this file format here.
static readonly DJVU	DjVu is a graphics file format intended for scanned documents and books especially those which contain the combination of text, drawings, images and photographs. Learn more about this file format here.
static readonly DNG	DNG is a digital camera image format used for the storage of raw files. It has been developed by Adobe in September 2004. It was basically developed for digital photography. DNG is an extension of TIFF/EP standard format and uses metadata significantly. In order to manipulate raw data from digital cameras with the ease of flexibility and artistic control, photographers opt camera raw files. JPEG and TIFF formats store images that are processed by the camera, therefore, not much room for alteration is available in such formats. here.
static readonly DOC	Files with .doc extension represent documents generated by Microsoft Word or other word processing documents in binary file format. Learn more about this file format here.
static readonly DOCM	DOCM files are Microsoft Word 2007 or higher generated documents with the ability to run macros. Learn more about this file format here.
static readonly DOCX	DOCX is a well-known format for Microsoft Word documents. Introduced from 2007 with the release of Microsoft Office 2007, the structure of this new Document format was changed from plain binary to a combination of XML and binary files. Learn more about this file format here.
static readonly DOT	Files with .DOT extension are template files created by Microsoft Word to have pre-formatted settings for generation of further DOC or DOCX files. Learn more about this file format here.
static readonly DOTM	A file with DOTM extension represents template file created with Microsoft Word 2007 or higher. Learn more about this file format here.
static readonly DOTX	Files with DOTX extension are template files created by Microsoft Word to have pre-formatted settings for generation of further DOCX files. Learn more about this file format here.
static readonly DWG	Files with DWG extension represent proprietary binary files used for containing 2D and 3D design data. Learn more about this file format here.
static readonly DXF	DXF, Drawing Interchange Format, or Drawing Exchange Format, is a tagged data representation of AutoCAD drawing file. Learn more about this file format here.
static readonly EMF	Enhanced metafile format (EMF) stores graphical images device-independently. Learn more about this file format here.
static readonly EML	EML file format represents email messages saved using Outlook and other relevant applications. Learn more about this file format here.
static readonly EPUB	Files with .EPUB extension are an e-book file format that provide a standard digital publication format for publishers and consumers. Learn more about this file format here.
static readonly FB2	Files with .fb2 extension are FictionBook 2.0 eBook files that contains the structure of the eBook. It is based on XML format and contains special tags for describing each element of the book. It was developed primarily for fictional writings and literature, but is not limited to these only. The format accommodates all the metadata as well as content in itself and allows flexibility for a number of operations such as automatic processing, indexing, and conversion to other formats. In short, it focuses on describing the structure of the file instead of specifying its appearance. Several applications as well as APIs are available to convert FB2 to several other formats on Windows, MacOS, and Linux. Learn more about this file format here.
static readonly FBX	FBX (Filmbox) is a proprietary file format (.fbx) developed by Kaydara and owned by Autodesk since 2006. It is used to provide interoperability between digital content creation applications. FBX is also part of Autodesk Gameware, a series of video game middleware. here.
static readonly FLV	FLV (Flash Video) is a container file format which is used to deliver audio/video content over the internet by using the Adobe Flash Player or Adobe Air. Learn more about this file format here.
static readonly GEOJSON	GeoJSON is a JSON based format designed to represent the geographical features with their non-spatial attributes. here.
static readonly GIF	A GIF or Graphical Interchange Format is a type of highly compressed image. Learn more about this file format here.
static readonly GLTF	glTF (GL Transmission Format) is a 3D file format that stores 3D model information in JSON format. The use of JSON minimizes both the size of 3D assets and the runtime processing needed to unpack and use those assets. It was adopted for the efficient transmission and loading of 3D scenes and models by applications. glTF was developed by the Khronos Group 3D Formats Working Group and is also described as JPEG of 3D by its creators. here.
static readonly GML	GML stands for Geography Markup Language that is based on XML specifications developed by the Open Geospatial Consortium (OGC). here.
static readonly GPX	Files with GPX extension represent GPS Exchange format for interchange of GPS data between applications and web services on the internet. It is a light-weight XML file format that contains GPS data i.e. waypoints, routes and tracks to be imported and red by multiple programs. here.
static readonly HEIC	An HEIC file is a High-Efficiency Container Image file format that can store multiple images as a collection in a single file. HEIC, like HEIF, are compressed using the High Efficiency Video Coding (HEVC) standard and are smaller in size without compromising the quality. Learn more about this file format here.
static readonly HEIF	An HEIF file is a High-Efficiency Container Image file format that is capable of storing a single image or a sequence of images in a single file. HEIF file format compresses the images using the High Efficiency Video Coding (HEVC) standard. Learn more about this file format here.
static readonly J2K	JPEG 2000 (J2K) is an image coding system and state-of-the-art image compression standard. Designed, using wavelet technology JPEG 2000 can code lossless content in any quality at once. Learn more about this file format here.
static readonly JAR	JAR is a Java Archive file that contains many different application related files as a single file. This file format was created to reduce the speed of loading a downloaded Java Applet in browser via HTTP transaction, Learn more about this file format here.
static readonly JP2	JPEG 2000 (JP2) is an image coding system and state-of-the-art image compression standard. Designed, using wavelet technology JPEG 2000 can code lossless content in any quality at once. Learn more about this file format here.
static readonly JPE	A JPEG is a type of image format that is saved using the method of lossy compression. Learn more about this file format here.
static readonly JPEG	A JPEG is a type of image format that is saved using the method of lossy compression. Learn more about this file format here.
static readonly JPF	JPEG 2000 (JPF) is an image coding system and state-of-the-art image compression standard. Designed, using wavelet technology JPEG 2000 can code lossless content in any quality at once. Learn more about this file format here.
static readonly JPG	A JPEG is a type of image format that is saved using the method of lossy compression. Learn more about this file format here.
static readonly JPM	JPEG 2000 (JPM) is an image coding system and state-of-the-art image compression standard. Designed, using wavelet technology JPEG 2000 can code lossless content in any quality at once. Learn more about this file format here.
static readonly JPX	JPEG 2000 (JPX) is an image coding system and state-of-the-art image compression standard. Designed, using wavelet technology JPEG 2000 can code lossless content in any quality at once. Learn more about this file format here.
static readonly KML	KML, Keyhole Markup Language) contains geospatial information in XML notation. Files saved as KML can be opened in Geographic Information System (GIS) applications provided they support it. here.
static readonly MJ2	Video format defined as Motion JPEG 2000 (Part 3); contains a motion sequence of JPEG 2000 images; does not involve inter-frame coding, but instead encodes each frame independently using JPEG 2000 compression.
static readonly MK3D	MK3D is actually stereoscopic 3D video created using Matroska 3D format. The MKV file container uses a StereoMode field’s value to define the type of stereoscopic 3D video stuff. Learn more about this file format here.
static readonly MKA	MKA (Matroska Audio) is the Matroska multimedia container format used for Audio. The MKA format supports several different kinds of audio compression algorithms such as MP3, AAC and Vobis. Learn more about this file format here.
static readonly MKV	MKV (Matroska Video) is a multimedia container similar to MOV and AVI format but it supports more than one audio and subtitle track in the same file. Learn more about this file format here.
static readonly MOBI	The MOBI file format is one of the most widely used ebook file formats. The format is an enhancement to the old OEB (Open Ebook Format) format and was used as the proprietary format for Mobipocket Reader. Like EPUB, it is supported by almost all modern e-readers specifically by mobile devices with low bandwidth. The format can be converted to several other formats such as PDF, EPUB, and several other formats using publicly available software applications such as the Kindle app. There are several companies that offer free MOBI books such as Project Gutenberg, Feedbooks, and Open Library. Learn more about this file format here.
static readonly MOV	MOV or QuickTime File format is multimedia container which is developed by Apple: contains one or more tracks, each track holds a particular type of data i.e. Video, Audio, text etc. Learn more about this file format here.
static readonly MP3	Files with MP3 extension are digitally encoded file formats for audio files that are formally based on the MPEG-1 Audio Layer III or MPEG-2 Audio Layer III. Learn more about this file format here.
static readonly MPP	MPP is proprietary file format developed by Microsoft as file format for Microsoft Project (MSP) which is a project management application software. Learn more about this file format here.
static readonly MPT	MPT is proprietary file format developed by Microsoft as file format for Microsoft Project (MSP) which is a project management application software. Learn more about this file format here.
static readonly MSG	MSG is a file format used by Microsoft Outlook and Exchange to store email messages, contact, appointment, or other tasks. Learn more about this file format here.
static readonly ODS	Files with ODS extension stand for OpenDocument Spreadsheet Document format that are editable by user. Learn more about this file format here.
static readonly ODT	ODT files are type of documents created with word processing applications that are based on OpenDocument Text File format. These are created with word processor applications such as free OpenOffice Writer and can hold content such as text, images, objects and styles. Learn more about this file format here.
static readonly OGG	OGG is an Ogg Vorbis Compressed Audio File that is saved with the .ogg extension. OGG files are used for storing audio data and can include artist and track information and metadata as well. OGG is a free and open container format that is maintained by Xiph.Org Foundation. Learn more about this file format here.
static readonly ONE	File represented by .ONE extension are created by Microsoft OneNote application. Learn more about this file format here.
static readonly OSM	OpenStreetMap (OSM) is a huge collection of volunteered geographic information stores in different types of files, using different encoding schemes to convert this data into bits and bytes. here.
static readonly OTC	OTC (OpenType Collection) is a OpenType font collection format. An OTC file can combine the multiple font files into it.
static readonly OTF	A file with .otf extension refers to OpenType font format. OTF font format is more scalable and extends the existing features of TTF formats for digital typography. Learn more about this file format here.
static readonly PDF	Portable Document Format (PDF) is a type of document created by Adobe back in 1990s. The purpose of this file format was to introduce a standard for representation of documents and other reference material in a format that is independent of application software, hardware as well as Operating System. Learn more about this file format here.
static readonly PNG	PNG, Portable Network Graphics, refers to a type of raster image file format that use loseless compression. Learn more about this file format here.
static readonly POT	Files with .POT extension represent Microsoft PowerPoint template files in binary format created by PowerPoint 97-2003 versions. Learn more about this file format here.
static readonly POTM	Files with POTM extension are Microsoft PowerPoint template files with support for Macros. POTM files are created with PowerPoint 2007 or above and contains default settings that can be used to create further presentation files. Learn more about this file format here.
static readonly POTX	Files with .POTX extension represent Microsoft PowerPoint template presentations that are created with Microsoft PowerPoint 2007 and above. Learn more about this file format here.
static readonly PPS	PPS, PowerPoint Slide Show, files are created using Microsoft PowerPoint for Slide Show purpose. PPS file reading and creation is supported by Microsoft PowerPoint 97-2003. Learn more about this file format here.
static readonly PPSM	Files with PPSM extension represent Macro-enabled Slide Show file format created with Microsoft PowerPoint 2007 or higher. Learn more about this file format here.
static readonly PPSX	PPSX, Power Point Slide Show, file are created using Microsoft PowerPoint 2007 and above for Slide Show purpose. Learn more about this file format here.
static readonly PPT	A file with PPT extension represents PowerPoint file that consists of a collection of slides for displaying as SlideShow. It specifies the Binary File Format used by Microsoft PowerPoint 97-2003. Learn more about this file format here.
static readonly PPTM	Files with PPTM extension are Macro-enabled Presentation files that are created with Microsoft PowerPoint 2007 or higher versions. Learn more about this file format here.
static readonly PPTX	Files with PPTX extension are presentation files created with popular Microsoft PowerPoint application. Unlike the previous version of presentation file format PPT which was binary, the PPTX format is based on the Microsoft PowerPoint open XML presentation file format. Learn more about this file format here.
static readonly PSD	PSD, Photoshop Document, represents Adobe Photoshop’s native file format used for graphics designing and development. Learn more about this file format here.
static readonly QT	MOV or QuickTime File format is multimedia container which is developed by Apple: contains one or more tracks, each track holds a particular type of data i.e. Video, Audio, text etc. Learn more about this file format here.
static readonly RAR	RAR is a proprietary archive file format that supports data compression, error correction and file spanning. here.
static readonly SEVENZIP	7z is a compressed archive file format that supports several different data compression, encryption and pre-processing algorithms. The 7z format initially appeared as implemented by the 7-Zip archiver. The 7-Zip program is publicly available under the terms of the GNU Lesser General Public License. here.
static readonly SHP	The shapefile format is a geospatial vector data format for geographic information system (GIS) software. here.
static readonly STL	STL is a file format native to the stereolithography CAD software created by 3D Systems. Chuck Hull, the inventor of stereolithography and 3D Systems’ founder, reports that the file extension is an abbreviation for stereolithography. here.
static readonly SVG	An SVG file is a Scalar Vector Graphics file that uses XML based text format for describing the appearance of an image. The word Scalable refers to the fact that the SVG can be scaled to different sizes without losing any quality. Text-based description of such files makes them independent of resolution. It is one of the most used formats for building a website and print graphics in order to achieve scalability. The format can only be used for two-dimensional graphics though. SVG files can be viewed/opened in almost all modern browsers including Chrome, Internet Explorer, Firefox, and Safari. Learn more about this file format here.
static readonly TAR	In computing, tar is a computer software utility for collecting many files into one archive file, often referred to as a tarball, for distribution or backup purposes. here.
static readonly THREEDS	A file with .3ds extension represents 3D Sudio (DOS) mesh file format used by Autodesk 3D Studio. Autodesk 3D Studio has been in 3D file format market since 1990s and has now evolved to 3D Studio MAX for working with 3D modeling, animation and rendering. here.
static readonly TIF	TIFF or TIF, Tagged Image File Format, represents raster images that are meant for usage on a variety of devices that comply with this file format standard. Learn more about this file format here.
static readonly TIFF	TIFF or TIF, Tagged Image File Format, represents raster images that are meant for usage on a variety of devices that comply with this file format standard. Learn more about this file format here.
static readonly TOPOJSON	TopoJSON is an extension of GeoJSON that encodes topology. here.
static readonly TORRENT	Represents TORRENT file type.
static readonly TTC	TTC (TrueType Collection) is a TrueType font collection format. A TTC file can combine the multiple font files into it. Learn more about this file format here.
static readonly TTF	TTF represents font files based on the TrueType specifications font technology. TrueType fonts provide highest quality display on computer screens and printers without any dependency on resolution. Learn more about this file format here.
static readonly Unknown	Represents unknown file type.
static readonly VCF	VCF (Virtual Card Format) or vCard is a digital file format for storing contact information. The format is widely used for data interchange among popular information exchange applications. Learn more about this file format here.
static readonly VCR	VCR (Virtual Card Format) or vCard is a digital file format for storing contact information. The format is widely used for data interchange among popular information exchange applications.
static readonly VDX	Any drawing or chart created in Microsoft Visio, but saved in XML format have .VDX extension. Learn more about this file format here.
static readonly VSD	VSD files are drawings created with Microsoft Visio application to represent variety of graphical objects and the interconnection between these. Learn more about this file format here.
static readonly VSDX	Files with .VSDX extension represent Microsoft Visio file format introduced from Microsoft Office 2013 onwards. Learn more about this file format here.
static readonly VSS	VSS are stencil files created with Microsoft Visio 2007 and earlier. Stencil files provide drawing objects that can be included in a .VSD Visio drawing. Learn more about this file format here.
static readonly VSX	Files with .VSX extension refer to stencils that consist of drawings and shapes that are used for creating diagrams in Microsoft Visio. Learn more about this file format here.
static readonly VTX	Files with .VTX extension refer to Microsoft Visio drawing template that is saved to disc in XML file format. Learn more about this file format here.
static readonly WAV	WAV, known for WAVE (Waveform Audio File Format), is a subset of Microsoft’s Resource Interchange File Format (RIFF) specification for storing digital audio files. Learn more about this file format here.
static readonly WEBM	WEBM is a video file based on the open, royalty-free WebM file format. It has been designed for sharing video on the web and defines the file container structure including video and audio formats. Learn more about this file format here.
static readonly WEBP	WebP, introduced by Google, is a modern raster web image file format that is based on lossless and lossy compression. It provides same image quality while considerably reducing the image size. Learn more about this file format here.
static readonly WMF	Files with WMF extension represent Microsoft Windows Metafile (WMF) for storing vector as well as bitmap-format images data. Learn more about this file format here.
static readonly XLS	Files with XLS extension represent Excel Binary File Format. Such files can be created by Microsoft Excel as well as other similar spreadsheet programs such as OpenOffice Calc or Apple Numbers. Learn more about this file format here.
static readonly XLSB	XLSB file format specifies the Excel Binary File Format, which is a collection of records and structures that specify Excel workbook content. Learn more about this file format here.
static readonly XLSM	Files with XLSM extension is a type of Spreasheet files that support Macros. Learn more about this file format here.
static readonly XLSX	XLSX is well-known format for Microsoft Excel documents that was introduced by Microsoft with the release of Microsoft Office 2007. Learn more about this file format here.
static readonly XLT	Files with .XLT extension are template files created with Microsoft Excel which is a spreadsheet application which comes as part of Microsoft Office suite. Learn more about this file format here.
static readonly XLTM	The XLTM file extension represents files that are generated by Microsoft Excel as Macro-enabled template files. Learn more about this file format here.
static readonly XLTX	Files with XLTX extension represent Microsoft Excel Template files that are based on the Office OpenXML file format specifications. Learn more about this file format here.
static readonly ZIP	ZIP file extension represents archives that can hold one or more files or directories. Learn more about this file format here.
static readonly ZIPX	ZIPX is a Zip file in which WinZip has used one or more of its available advanced compression methods.

Remarks

Learn more

Net: FileTypePackage

Mon, 01 Jan 0001 00:00:00 +0000

FileTypePackage class

Represents a metadata package containing file format information.

public class FileTypePackage : CustomPackage

Properties

Name	Description
Count { get; }	Gets the number of metadata properties.
Extension { get; }	Gets the file extension.
FileFormat { get; }	Gets the file format.
Item { get; }	Gets the `MetadataProperty` with the specified name.
Keys { get; }	Gets a collection of the metadata property names.
MetadataType { get; }	Gets the metadata type.
MimeType { get; }	Gets the MIME type.
PropertyDescriptors { get; }	Gets a collection of descriptors that contain information about properties accessible through the GroupDocs.Metadata search engine.

Methods

Name	Description
virtual AddProperties(Func<MetadataProperty, bool>, PropertyValue)	Adds known metadata properties satisfying the specified predicate. The operation is recursive so it affects all nested packages as well.
Contains(string)	Determines whether the package contains a metadata property with the specified name.
virtual FindProperties(Func<MetadataProperty, bool>)	Finds the metadata properties satisfying the specified predicate. The search is recursive so it affects all nested packages as well.
GetEnumerator()	Returns an enumerator that iterates through the collection.
virtual RemoveProperties(Func<MetadataProperty, bool>)	Removes metadata properties satisfying the specified predicate.
virtual Sanitize()	Removes writable metadata properties from the package. The operation is recursive so it affects all nested packages as well.
virtual SetProperties(Func<MetadataProperty, bool>, PropertyValue)	Sets known metadata properties satisfying the specified predicate. The operation is recursive so it affects all nested packages as well. This method is a combination of `AddProperties` and `UpdateProperties`. If an existing property satisfies the predicate its value is updated. If there is a known property missing in the package that satisfies the predicate it is added to the package.
virtual UpdateProperties(Func<MetadataProperty, bool>, PropertyValue)	Updates known metadata properties satisfying the specified predicate. The operation is recursive so it affects all nested packages as well.

Remarks

Learn more

Net: FuncTResult

Mon, 01 Jan 0001 00:00:00 +0000

Func<TResult> delegate

Encapsulates a method that has no parameters and returns a value of the type specified by the TResult parameter.

public delegate TResult Func<out TResult>();

Parameter	Description
TResult	The type of the return value of the method that this delegate encapsulates.

Return Value

The return value of the method that this delegate encapsulates.

Net: FuncTTResult

Mon, 01 Jan 0001 00:00:00 +0000

Func<T,TResult> delegate

Encapsulates a method that has one parameter and returns a value of the type specified by the TResult parameter.

public delegate TResult Func<in T, out TResult>(T arg);

Parameter	Description
T	The type of the parameter of the method that this delegate encapsulates.
TResult	The type of the return value of the method that this delegate encapsulates.
arg	The parameter of the method that this delegate encapsulates.

Return Value

The return value of the method that this delegate encapsulates.

Net: IDocumentInfo

Mon, 01 Jan 0001 00:00:00 +0000

IDocumentInfo interface

Provides common information about a loaded document.

public interface IDocumentInfo

Properties

Name	Description
FileType { get; }	Gets the file type of the loaded document.
IsEncrypted { get; }	Gets a value indicating whether the document is encrypted and requires a password to open.
PageCount { get; }	Gets the number of pages (slides, worksheets, etc) in the loaded document.
Pages { get; }	Gets a collection of objects representing common information about the document pages (slides, worksheets, etc).
Size { get; }	Gets the size of the loaded document in bytes.

Remarks

Learn more

Get document info

Examples

This example demonstrates how to extract basic format information from a file.

using (Metadata metadata = new Metadata(Constants.InputXlsx))
{
    if (metadata.FileFormat != FileFormat.Unknown)
    {
        IDocumentInfo info = metadata.GetDocumentInfo();

        Console.WriteLine("File format: {0}", info.FileType.FileFormat);
        Console.WriteLine("File extension: {0}", info.FileType.Extension);
        Console.WriteLine("MIME Type: {0}", info.FileType.MimeType);
        Console.WriteLine("Number of pages: {0}", info.PageCount);
        Console.WriteLine("Document size: {0} bytes", info.Size);
        Console.WriteLine("Is document encrypted: {0}", info.IsEncrypted);
    }
}

Net: IEnumValueInterpreter

Mon, 01 Jan 0001 00:00:00 +0000

IEnumValueInterpreter interface

Represents an interpreter intended to convert various numeric values to descriptive string values.

public interface IEnumValueInterpreter

Properties

Name	Description
OutputValueRange { get; }	Gets the range of all possible output (interpreted) values.

Net: IReadOnlyListT

Mon, 01 Jan 0001 00:00:00 +0000

IReadOnlyList<T> interface

Represents a read-only collection of elements that can be accessed by index.

public interface IReadOnlyList<T> : IEnumerable<T>

Parameter	Description
T	The type of elements in the read-only list.

Properties

Name	Description
Count { get; }	Gets the number of elements contained in the collection.
Item { get; }	Gets the element at the specified index in the read-only list.

Methods

Name	Description
Contains(T)	Determines whether the collection contains a specific item.
Contains(TagCategory)	Determines whether the collection contains a TagCategory item.
IndexOf(T)	Determines the index of a specific item in the collection.

Net: MetadataPackage

Mon, 01 Jan 0001 00:00:00 +0000

MetadataPackage class

Represents base abstraction for a metadata package.

public abstract class MetadataPackage : IEnumerable<MetadataProperty>

Properties

Name	Description
Count { get; }	Gets the number of metadata properties.
Item { get; }	Gets the `MetadataProperty` with the specified name.
Keys { get; }	Gets a collection of the metadata property names.
MetadataType { get; }	Gets the metadata type.
PropertyDescriptors { get; }	Gets a collection of descriptors that contain information about properties accessible through the GroupDocs.Metadata search engine.

Methods

Name	Description
virtual AddProperties(Func<MetadataProperty, bool>, PropertyValue)	Adds known metadata properties satisfying the specified predicate. The operation is recursive so it affects all nested packages as well.
Contains(string)	Determines whether the package contains a metadata property with the specified name.
virtual FindProperties(Func<MetadataProperty, bool>)	Finds the metadata properties satisfying the specified predicate. The search is recursive so it affects all nested packages as well.
GetEnumerator()	Returns an enumerator that iterates through the collection.
virtual RemoveProperties(Func<MetadataProperty, bool>)	Removes metadata properties satisfying the specified predicate.
virtual Sanitize()	Removes writable metadata properties from the package. The operation is recursive so it affects all nested packages as well.
virtual SetProperties(Func<MetadataProperty, bool>, PropertyValue)	Sets known metadata properties satisfying the specified predicate. The operation is recursive so it affects all nested packages as well. This method is a combination of `AddProperties` and `UpdateProperties`. If an existing property satisfies the predicate its value is updated. If there is a known property missing in the package that satisfies the predicate it is added to the package.
virtual UpdateProperties(Func<MetadataProperty, bool>, PropertyValue)	Updates known metadata properties satisfying the specified predicate. The operation is recursive so it affects all nested packages as well.

Net: MetadataProperty

Mon, 01 Jan 0001 00:00:00 +0000

MetadataProperty class

Represents a metadata property.

public class MetadataProperty

Properties

Name	Description
Descriptor { get; }	Gets the descriptor associated with the metadata property.
InterpretedValue { get; }	Gets the interpreted property value, if available. The interpreted value is a user-friendly form of the original property value. For example, it returns a human-readable string instead of numeric flags and ids, if necessary, translates byte arrays to text, etc.
Name { get; }	Gets the property name.
Tags { get; }	Gets a collection of tags associated with the property.
Value { get; }	Gets the property value.

Net: MetadataPropertyEqualityComparer

Mon, 01 Jan 0001 00:00:00 +0000

MetadataPropertyEqualityComparer class

Defines methods to support the comparison of metadata properties for equality.

public class MetadataPropertyEqualityComparer : IEqualityComparer<MetadataProperty>

Constructors

Name	Description
MetadataPropertyEqualityComparer()	The default constructor.

Methods

Name	Description
Equals(MetadataProperty, MetadataProperty)	Determines whether the specified objects are equal.
GetHashCode(MetadataProperty)	Returns a hash code for the specified object.

Net: MetadataPropertyType

Mon, 01 Jan 0001 00:00:00 +0000

MetadataPropertyType enumeration

Defines metadata property types.

public enum MetadataPropertyType

Values

Name	Value	Description
Empty	`0`	Represents an empty (null) property.
String	`1`	Represents a string property.
Boolean	`2`	Represents a boolean property.
DateTime	`3`	Represents a date property.
TimeSpan	`4`	Represents a time property.
Integer	`5`	Represents an integer property.
Long	`6`	Represents a long integer property.
Double	`7`	Represents a property with a double or float value.
StringArray	`8`	Represents a string array property.
ByteArray	`9`	Represents a byte array property.
DoubleArray	`10`	Represents an array of double values.
IntegerArray	`11`	Represents an array of integer values.
LongArray	`12`	Represents an array of long values.
Metadata	`13`	Represents a nested metadata block.
MetadataArray	`14`	Represents an array of nested metadata blocks.
Guid	`15`	Represents a global unique identifier value.
PropertyValueArray	`16`	Represents a metadata property value array.
Object	`17`	Represents a metadata property value object.

Net: MetadataType

Mon, 01 Jan 0001 00:00:00 +0000

MetadataType enumeration

Specifies the type of a metadata package.

public enum MetadataType

Values

Name	Value	Description
Undefined	`0`	The type of a metadata package is undefined.
Root	`1`	A root metadata package containing other format-specific packages.
Xmp	`2`	An XMP metadata package.
Exif	`3`	An EXIF metadata package,
Iptc	`4`	An IPTC metadata package,
DublinCore	`5`	A Dublin Core metadata package.
ImageResourceBlock	`6`	A Photoshop’s native metadata package.
FileFormat	`7`	A package containing information about the format of a loaded file.
DigitalSignature	`8`	A package containing digital signature metadata.
Presentation	`9`	A presentation metadata package.
Spreadsheet	`10`	A spreadsheet metadata package.
WordProcessing	`11`	A word processing metadata package.
Diagram	`12`	A diagram metadata package.
Note	`13`	A metadata package containing information about an electronic note file.
ProjectManagement	`14`	A metadata package containing information about a project management file.
Pdf	`15`	A PDF metadata package.
DocumentStatistics	`16`	A package containing document statistics.
Psd	`17`	A metadata package containing information about a Photoshop document.
Jpeg2000	`18`	A JPEG2000 native metadata package.
Dicom	`19`	A DICOM native metadata package.
Bmp	`20`	A BMP native metadata package.
Wav	`21`	A WAV native metadata package.
ID3V1	`22`	An ID3V1 tag.
ID3V2	`23`	An ID3V2 tag.
MpegAudio	`24`	An MPEG audio native metadata package.
Lyrics3	`25`	A Lyrics3 metadata package.
ApeV2	`26`	An APEv2 metadata package.
Avi	`27`	An AVI video native metadata package.
Flv	`28`	An FLV video native metadata package.
Asf	`29`	An ASF video native metadata package.
Mov	`30`	A QuickTime video.
Matroska	`31`	A native metadata package extracted from a video encoded with the Matroska multimedia container.
Zip	`32`	A native metadata package of a ZIP archive.
SevenZip	`33`	A native metadata package of a SevenZip archive.
VCard	`34`	A native metadata package of a VCard.
Epub	`35`	A native metadata package of a EPUB e-book.
OpenType	`36`	An OpenType font metadata package.
Cad	`37`	A metadata package extracted from a CAD drawing.
Eml	`38`	An EML message metadata package.
Msg	`39`	An MSG message metadata package.
Torrent	`40`	A torrent file metadata package. Please find more information at https://en.wikipedia.org/wiki/Torrent_file/.
Png	`41`	A PNG image metadata package.
Dng	`42`	A DNG image metadata package.
Cr2	`43`	A CR2 image metadata package.
Rar	`44`	RAR is a proprietary archive file format that supports data compression, error correction and file spanning.
Tar	`45`	In computing, tar is a computer software utility for collecting many files into one archive file, often referred to as a tarball, for distribution or backup purposes.
ThreeDS	`46`	3DS is one of the file formats used by the Autodesk 3ds Max 3D modeling, animation and rendering software.
Dae	`47`	A DAE file is a Digital Asset Exchange file format that is used for exchanging data between interactive 3D applications.
Fbx	`48`	FBX (Filmbox) is a proprietary file format (.fbx) developed by Kaydara and owned by Autodesk since 2006. It is used to provide interoperability between digital content creation applications. FBX is also part of Autodesk Gameware, a series of video game middleware.
Stl	`49`	STL is a file format native to the stereolithography CAD software created by 3D Systems.[3][4][5] Chuck Hull, the inventor of stereolithography and 3D Systems’ founder, reports that the file extension is an abbreviation for stereolithography.
Gis	`50`	Gis format
Fb2	`51`	Files with .fb2 extension are FictionBook 2.0 eBook files that contains the structure of the eBook.
Mobi	`52`	The MOBI file format is one of the most widely used ebook file formats. The format is an enhancement to the old OEB (Open Ebook Format) format and was used as the proprietary format for Mobipocket Reader.
Ogg	`53`	Ogg format
Svg	`54`	Svg format
Gltf	`55`	glTF (Graphics Library Transmission Format or GL Transmission Format and formerly known as WebGL Transmissions Format or WebGL TF)
Avif	`56`	Avif format

Net: PageInfo

Mon, 01 Jan 0001 00:00:00 +0000

PageInfo class

Provides common information about a document page (slide, worksheet, etc).

public class PageInfo

Properties

Name	Description
Height { get; }	Gets the height of the page in document default units.
PageNumber { get; }	Gets the number of the page.
Width { get; }	Gets the width of the page in document default units.

Remarks

Learn more

Get document info

Net: PropertyAccessLevels

Mon, 01 Jan 0001 00:00:00 +0000

PropertyAccessLevels enumeration

Defines access levels for metadata properties.

[Flags]
public enum PropertyAccessLevels

Values

Name	Value	Description
Read	`0`	The property is read-only.
Update	`1`	It is possible to update the property using the `UpdateProperties` method.
Remove	`2`	The property can be removed through the `RemoveProperties` method.
Add	`4`	It is possible to update the property using the `AddProperties` method.
Full	`7`	Grants full access to the property.
AddOrUpdate	`5`	It is allowed to add and update the property. All other operations are restricted.

Net: PropertyDescriptor

Mon, 01 Jan 0001 00:00:00 +0000

PropertyDescriptor class

Represents a descriptor of a property that can be accessed through the GroupDocs.Metadata search engine.

public class PropertyDescriptor

Properties

Name	Description
virtual AccessLevel { get; }	Gets the property access level.
Interpreter { get; }	Gets the property value interpreter.
Name { get; }	Gets the property name.
Tags { get; }	Gets a collection of tags associated with the property.
Type { get; }	Gets the property type.

Net: PropertyValue

Mon, 01 Jan 0001 00:00:00 +0000

PropertyValue class

Represents a property value.

public class PropertyValue

Constructors

Name	Description
PropertyValue(bool)	Initializes a new instance of the `PropertyValue` class with a boolean value.
PropertyValue(byte[])	Initializes a new instance of the `PropertyValue` class with a byte array.
PropertyValue(DateTime)	Initializes a new instance of the `PropertyValue` class with a DateTime value.
PropertyValue(double)	Initializes a new instance of the `PropertyValue` class with a double value.
PropertyValue(double[])	Initializes a new instance of the `PropertyValue` class with an array of double values.
PropertyValue(int)	Initializes a new instance of the `PropertyValue` class with an integer value.
PropertyValue(int[])	Initializes a new instance of the `PropertyValue` class with an array of integer values.
PropertyValue(long)	Initializes a new instance of the `PropertyValue` class with a long value.
PropertyValue(long[])	Initializes a new instance of the `PropertyValue` class with an array of long values.
PropertyValue(object)	Initializes a new instance of the `PropertyValue` class with a object value.
PropertyValue(string)	Initializes a new instance of the `PropertyValue` class with a string value.
PropertyValue(string[])	Initializes a new instance of the `PropertyValue` class with a string array.
PropertyValue(TimeSpan)	Initializes a new instance of the `PropertyValue` class with a TimeSpan value.
PropertyValue(ushort[])	Initializes a new instance of the `PropertyValue` class with an array of ushort values.

Properties

Name	Description
RawValue { get; }	Gets the raw value.
Type { get; }	Gets the `MetadataPropertyType`.

Methods

Name	Description
AcceptValue(ValueAcceptor)	Extracts the property value using a custom `ValueAcceptor`.
ToArray<TElement>()	Converts the property value to an array of the specified type.
ToClass<T>()	Converts the property value to a reference type.
override ToString()	Returns a string that represents the property value.
ToStruct<T>()	Converts the property value to a value type.
ToStruct<T>(T)	Converts the property value to a value type.

Net: PropertyValueEqualityComparer

Mon, 01 Jan 0001 00:00:00 +0000

PropertyValueEqualityComparer class

Defines methods to support the comparison of property values for equality.

public class PropertyValueEqualityComparer : IEqualityComparer<PropertyValue>

Constructors

Name	Description
PropertyValueEqualityComparer()	The default constructor.

Methods

Name	Description
Equals(PropertyValue, PropertyValue)	Determines whether the specified objects are equal.
GetHashCode(PropertyValue)	Returns a hash code for the specified object.

Net: ReadOnlyListT

Mon, 01 Jan 0001 00:00:00 +0000

ReadOnlyList<T> class

Provides an abstract base class for a strongly typed read-only list.

public class ReadOnlyList<T> : IList, IList<T>, IReadOnlyList<T>

Parameter	Description
T	The type of the element.

Properties

Name	Description
Count { get; }	Gets the number of elements contained in the collection.
IsReadOnly { get; }	Gets a value indicating whether the collection is read-only.
Item { get; }	Gets the element at the specified index in the collection.

Methods

Name	Description
Contains(T)	Determines whether the collection contains a specific item.
Contains(TagCategory)	Determines whether the collection contains a TagCategory item.
GetEnumerator()	Returns an enumerator that iterates through a collection.
IndexOf(T)	Determines the index of a specific item in the collection.

Net: Rectangle

Mon, 01 Jan 0001 00:00:00 +0000

Rectangle structure

A set of four integers that represent the location and size of a rectangle.

public struct Rectangle

Properties

Name	Description
static Empty { get; }	Gets the empty rectangle.
Bottom { get; }	Gets the y-coordinate that is the sum of the Y and Height property values of the rectangle.
Height { get; }	Gets the height.
IsEmpty { get; }	Gets a value indicating whether this instance is empty.
Left { get; }	Gets the x-coordinate of the left edge of the rectangle.
Right { get; }	Gets the x-coordinate that is the sum of X and Width property values of the rectangle.
Top { get; }	Gets the y-coordinate that is the sum of the Y and Height property values of the rectangle.
Width { get; }	Gets the width.
X { get; }	Gets the x.
Y { get; }	Gets the y.

Methods

Name	Description
override ToString()	Returns a String that represents this instance.

Net: RootMetadataPackage

Mon, 01 Jan 0001 00:00:00 +0000

RootMetadataPackage class

Represents an entry point to all metadata packages presented in a particular file.

public abstract class RootMetadataPackage : MetadataPackage

Properties

Name	Description
Count { get; }	Gets the number of metadata properties.
FileType { get; }	Gets the file type metadata package.
Item { get; }	Gets the `MetadataProperty` with the specified name.
Keys { get; }	Gets a collection of the metadata property names.
MetadataType { get; }	Gets the metadata type.
PropertyDescriptors { get; }	Gets a collection of descriptors that contain information about properties accessible through the GroupDocs.Metadata search engine.

Methods

Name	Description
virtual AddProperties(Func<MetadataProperty, bool>, PropertyValue)	Adds known metadata properties satisfying the specified predicate. The operation is recursive so it affects all nested packages as well.
Contains(string)	Determines whether the package contains a metadata property with the specified name.
virtual FindProperties(Func<MetadataProperty, bool>)	Finds the metadata properties satisfying the specified predicate. The search is recursive so it affects all nested packages as well.
GetEnumerator()	Returns an enumerator that iterates through the collection.
virtual RemoveProperties(Func<MetadataProperty, bool>)	Removes metadata properties satisfying the specified predicate.
override Sanitize()	Removes writable metadata properties from the package. The operation is recursive so it affects all nested packages as well.
virtual SetProperties(Func<MetadataProperty, bool>, PropertyValue)	Sets known metadata properties satisfying the specified predicate. The operation is recursive so it affects all nested packages as well. This method is a combination of `AddProperties` and `UpdateProperties`. If an existing property satisfies the predicate its value is updated. If there is a known property missing in the package that satisfies the predicate it is added to the package.
virtual UpdateProperties(Func<MetadataProperty, bool>, PropertyValue)	Updates known metadata properties satisfying the specified predicate. The operation is recursive so it affects all nested packages as well.

Net: ValueAcceptor

Mon, 01 Jan 0001 00:00:00 +0000

ValueAcceptor class

Provides a base abstract class that allows extracting all supported types of values from a PropertyValue instance.

public abstract class ValueAcceptor

Net: ValueInterpreter

Mon, 01 Jan 0001 00:00:00 +0000

ValueInterpreter class

Defines operations required to interpret metadata property values.

public abstract class ValueInterpreter

Properties

Name	Description
abstract InterpretedValueType { get; }	Gets the type of the interpreted value.

Methods

Name	Description
ToInterpretedValue(PropertyValue)	Interprets the provided property value.
ToSourceValue(PropertyValue)	Converts an interpreted value back to its original form.

Groupdocs API References – GroupDocs.Metadata.Common

Net: ByteOrder

ByteOrder enumeration

Values

See Also

Net: CustomPackage

CustomPackage class

Properties

Methods

See Also

Net: DocumentInfo

DocumentInfo class

Properties

Remarks

Examples

See Also

Net: FileFormat

FileFormat enumeration

Values

See Also

Net: FileType

FileType class

Properties

Methods

Fields

Remarks

See Also

Net: FileTypePackage

FileTypePackage class

Properties

Methods

Remarks

See Also

Net: FuncTResult

Func<TResult> delegate

Return Value

See Also

Net: FuncTTResult

Func<T,TResult> delegate

Return Value

See Also

Net: IDocumentInfo

IDocumentInfo interface

Properties

Remarks

Examples

See Also

Net: IEnumValueInterpreter

IEnumValueInterpreter interface

Properties

See Also

Net: IReadOnlyListT

IReadOnlyList<T> interface

Properties

Methods

See Also

Net: MetadataPackage

MetadataPackage class

Properties

Methods

See Also

Net: MetadataProperty

MetadataProperty class

Properties

See Also

Net: MetadataPropertyEqualityComparer

MetadataPropertyEqualityComparer class

Constructors

Methods

See Also

Net: MetadataPropertyType

MetadataPropertyType enumeration

Values

See Also

Net: MetadataType

MetadataType enumeration

Values

See Also

Net: PageInfo

PageInfo class