Indicates whether a part with a given URI is in the package.
Assembly: WindowsBase (in WindowsBase.dll)
The partUri should begin with a forward-slash character "/" and be absolute from the root of the package.
For additional information, see the Open Packaging Conventions (OPC) specification available for download at http://go.microsoft.com/fwlink/?LinkID=71255.
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.