Uri.MakeRelativeUri(Uri) Method

Reference

Definition

Namespace:: System

Assembly:: System.Runtime.dll

Assembly:: System.dll

Assembly:: netstandard.dll

Source:: Uri.cs

Source:: Uri.cs

Source:: Uri.cs

Important

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Determines the difference between two Uri instances.

public:
 Uri ^ MakeRelativeUri(Uri ^ uri);

public Uri MakeRelativeUri (Uri uri);

member this.MakeRelativeUri : Uri -> Uri

Public Function MakeRelativeUri (uri As Uri) As Uri

Parameters

uri: Uri

The URI to compare to the current URI.

Returns

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.

Exceptions

ArgumentNullException

uri is null.

InvalidOperationException

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

Examples

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

Remarks

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

Jaa