PackagePart.GetStream Method (FileMode)

Returns the content stream opened in a specified I/O FileMode.

Namespace: System.IO.Packaging
Assembly: WindowsBase (in windowsbase.dll)

public Stream GetStream (
	FileMode mode
public Stream GetStream (
	FileMode mode
public function GetStream (
	mode : FileMode
) : Stream
You cannot use methods in XAML.



The I/O mode in which to open the content stream.

Return Value

The content stream of the part.

Exception typeCondition


The part has been deleted.


The Package is not open (Dispose or Close has been called).


The mode parameter is not a valid FileMode enumeration value.


The mode parameter is not compatible with the package and part stream.


The stream object returned by the GetStreamCore method of the derived subclass is a null reference (Nothing in Visual Basic).

The FileAccess permissions of the returned content stream are the same as the permissions of the parent Package.

Notes to Callers: GetStream internally calls the derived GetStreamCore method to actually open and return the part data stream based on the physical format implemented in the derived class. By default, the ZipPackagePart subclass implementation of the abstract PackagePart class is provided and used. In the default operation, GetStream internally calls GetStreamCore of the ZipPackagePart class to open and return the part data stream from a ZIP file.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0