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Uri.MakeRelativeUri(Uri) Method


Determines the difference between two Uri instances.

 Uri ^ MakeRelativeUri(Uri ^ uri);
public Uri MakeRelativeUri (Uri uri);
member this.MakeRelativeUri : Uri -> Uri
Public Function MakeRelativeUri (uri As Uri) As Uri



The URI to compare to the current 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.


uri is null.

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


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

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

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

// Determine the relative Uri.  
Console::WriteLine( "The difference is {0}", address1->MakeRelativeUri( address2 ) );
// 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));
// Create a base Uri.
let address1 = Uri "http://www.contoso.com/"

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

// Determine the relative Uri.
printfn $"The difference is {address1.MakeRelativeUri address2}"
    ' Create a base Uri.
    Dim address1 As New Uri("http://www.contoso.com/")
    ' Create a new Uri from a string.
    Dim address2 As New Uri("http://www.contoso.com/index.htm?date=today")
    ' Determine the relative Uri.  
    Console.WriteLine("The difference is {0}", address1.MakeRelativeUri(address2))

End Sub


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.

Applies to