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Uri.Equals Method

Compares two Uri instances for equality.

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

[SecurityPermissionAttribute(SecurityAction.InheritanceDemand, Flags = SecurityPermissionFlag.Infrastructure)]
public override bool Equals(
	Object comparand


Type: System.Object
The Uri instance or a URI identifier to compare with the current instance.

Return Value

Type: System.Boolean
A Boolean value that is true if the two instances represent the same URI; otherwise, false.

The Equals method compares the two instances without regard to user information (UserInfo) and fragment (Fragment) parts that they might contain. For example, given the URIs and, the Equals method would return true.

If one Uri instance is formed with a Unicode host name and comparand parameter contains a Uri instance or identifier that is formed with a host name that has the equivalent Punycode host name, then Equals returns true only if International Resource Identifier (IRI) and Internationalized Domain Name (IDN) support are enabled. Punycode names contain only ASCII characters and always start with the xn-- prefix.

For more information on IRI support, see the Remarks section for the Uri class.


In the .NET Framework versions 1.0 and 1.1, the Query is also ignored.


The Equals method can be overridden in a derived class; use caution as a malicious entity could modify the method. You should not use this method to perform security checks unless you know that this instance came from a trusted source.

This example creates two Uri instances from strings and compares them to determine whether they represent the same value. address1 and address2 are the same because the Fragment portion is ignored for this comparison. The outcome is written to the console.

// Create some Uris.
Uri address1 = new Uri("");
Uri address2 = new Uri(""); 
if (address1.Equals(address2))
    Console.WriteLine("The two addresses are equal");
    Console.WriteLine("The two addresses are not equal");

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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