Package.CreatePart Method (Uri, String, CompressionOption)
Creates a new part with a given URI, content type, and compression option.
Namespace: System.IO.Packaging
Assembly: WindowsBase (in WindowsBase.dll)
'Declaration Public Function CreatePart ( _ partUri As Uri, _ contentType As String, _ compressionOption As CompressionOption _ ) As PackagePart
Parameters
- partUri
- Type: System.Uri
The URI of the new part.
- contentType
- Type: System.String
The content type of the data stream.
- compressionOption
- Type: System.IO.Packaging.CompressionOption
The compression option for the data stream, NotCompressed or Normal compression.
| Exception | Condition |
|---|---|
| ArgumentNullException | partUri or contentType is Nothing. |
| ArgumentException | partUri is not a valid PackagePart uniform resource identifier (URI). |
| InvalidOperationException | A part with the specified partUri is already present in the package. |
| ArgumentOutOfRangeException | The compressionOption value is not valid. |
| ObjectDisposedException | |
| IOException | The package is read-only (a new part cannot be added). |
For the default ZipPackage derived class, the CreatePart method only supports two compressionOption values, NotCompressed or Normal compression. Other CompressionOption values of Maximum, Fast, or SuperFast use Normal compression.
CreatePart creates an empty Stream for the new part. The PackagePart.GetStream method can be used to obtain a reference to the stream instance associated with the part.
For additional information, see the Open Packaging Conventions (OPC) specification available for download at http://go.microsoft.com/fwlink/?LinkID=71255.
Notes to InheritorsCreatePart internally calls the derived class's CreatePartCore method to actually create the part based on the physical format implemented in the derived class.
The following example shows how to create a new PackagePart and then store data into the part. For the complete sample, see Writing a Package Sample.
' Add the Document part to the Package Dim packagePartDocument As PackagePart = package.CreatePart(partUriDocument, System.Net.Mime.MediaTypeNames.Text.Xml) ' Copy the data to the Document Part Using fileStream As New FileStream(documentPath, FileMode.Open, FileAccess.Read) CopyStream(fileStream, packagePartDocument.GetStream()) End Using ' end:using(fileStream) - Close and dispose fileStream.
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
