PackUriHelper.ComparePackUri(Uri, Uri) Method

Definition

Namespace:

System.IO.Packaging

Assembly:

System.IO.Packaging.dll

Source:

PackUriHelper.PackUriScheme.cs

Returns a value that indicates whether two pack URIs are equivalent.

C#

public static int ComparePackUri(Uri? firstPackUri, Uri? secondPackUri);

Parameters

firstPackUri

Uri

The first pack URI.

secondPackUri

Uri

The second pack URI.

Returns

Int32

A signed integer indicating the relationship between firstPackUri and secondPackUri.

Value	Meaning
Less than 0	firstPackUri is less than secondPackUri.
0	firstPackUri is equivalent to secondPackUri.
Greater than 0	firstPackUri is greater than secondPackUri.

Exceptions

ArgumentException

Either firstPackUri or secondPackUri is not an absolute URI.

-or-

Either firstPackUri or secondPackUri do not begin with a "pack://" scheme.

Remarks

If both firstPackUri and secondPackUri are null, ComparePackUri returns 0. When comparing pack URIs, a null URI is always less than a non-null URI. For cases where firstPackUri and secondPackUri are both absolute pack URIs, ComparePackUri performs the comparison.

Applies to

See also

• ComparePartUri(Uri, Uri)