This topic has not yet been rated - Rate this topic

Uri.MakeRelativeUri Method

.NET Framework 4.5

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.

Exceptions

Exception	Condition
ArgumentNullException	uri is null.
InvalidOperationException	This instance represents a relative URI, and this property is valid only for absolute URIs.

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.

Examples

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

C++

// 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));

Version Information

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

Platforms

Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

Reference

Uri Class

System Namespace

Did you find this helpful? Yes No

Not accurate

Not enough depth

Need more code examples

(1500 characters remaining)