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PackUriHelper.ComparePartUri Method

Returns a value that indicates whether two package part URIs are equivalent.

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

public static int ComparePartUri(
	Uri firstPartUri,
	Uri secondPartUri


Type: System.Uri
The URI of the first PackagePart.
Type: System.Uri
The URI of the second PackagePart.

Return Value

Type: System.Int32
A value that indicates the relationship between firstPartUri and secondPartUri.



Less than 0

firstPartUri is less than secondPartUri.


firstPartUri is equivalent to secondPartUri.

Greater than 0

firstPartUri is greater than secondPartUri.


firstPartUri or secondPartUri is not a valid part URI syntax.

If both firstPartUri and secondPartUri are null, ComparePartUri returns 0. When comparing PackagePart URIs, a null URI is always less than a non-null URI. For cases where firstPartUri and secondPartUri are both relative PackagePart URIs, ComparePartUri performs the comparison.

.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.