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Uri.MakeRelativeUri Method (Uri)

 

Determines the difference between two Uri instances.

Namespace:   System
Assembly:  System (in System.dll)

public Uri MakeRelativeUri(
	Uri uri
)

Parameters

uri
Type: System.Uri

The URI to compare to the current URI.

Return Value

Type: System.Uri

If the hostname and scheme of this URI instance and uri are the same, then this method returns a relative Uri that, when appended to the current URI instance, yields uri.

If the hostname or scheme is different, then this method returns a Uri that represents the uri parameter.

Exception Condition
ArgumentNullException

uri is null.

InvalidOperationException

This instance represents a relative URI, and this property is valid only for absolute URIs.

The following table shows the URI instance, toUri, and the results of calling MakeRelativeUri.

Current URI instance

toUri

Return value

http://www.contoso.com/

http://www.contoso.com/test/test.htm

test/test.htm

http://www.contoso.com/test1/

http://www.contoso.com/

../

http://www.contoso.com:8000/

http://www.contoso.com/test/test.htm

http://www.contoso.com/test/test.htm

http://username@www.contoso.com/

http://www.contoso.com/test1/test1.txt

test1/test1.txt

User information, if present in the URI, is ignored.

The following example creates 2 Uri instances. The difference in the path information is written to the console.

// Create a base Uri.
Uri address1 = new Uri("http://www.contoso.com/");

// Create a new Uri from a string.
Uri address2 = new Uri("http://www.contoso.com/index.htm?date=today"); 

// Determine the relative Uri.  
Console.WriteLine("The difference is {0}", address1.MakeRelativeUri(address2));

Universal Windows Platform
Available since 4.5
.NET Framework
Available since 2.0
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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