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ValueType.Equals Method

Indicates whether this instance and a specified object are equal.

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

public override function Equals(
	obj : Object
) : boolean

Parameters

obj
Type: System.Object

Another object to compare to.

Return Value

Type: System.Boolean
true if obj and this instance are the same type and represent the same value; otherwise, false.

The default implementation of the Equals method uses reflection to compare the corresponding fields of obj and this instance. Override the Equals method for a particular type to improve the performance of the method and more closely represent the concept of equality for the type.

The following example demonstrates how the Equals method can be overridden by a derived value type.

	public class Complex 
	{
		public var m_Re : double;
		public var m_Im : double;

		public override function Equals( ob ) : Boolean{
			if( ob.GetType() == Complex ) {
				var c : Complex = Complex(ob);
				return m_Re==c.m_Re && m_Im==c.m_Im;
			}
			else {
				return false;
			}
		}

		public override function GetHashCode() : int{
			return m_Re.GetHashCode() ^ m_Im.GetHashCode();
		}

                public static function main() {
                       var x : Complex = new Complex();
                       x.m_Re = 1;
                       x.m_Im = 2;
                       var y : Complex = new Complex();
                       y.m_Re = 2;
                       y.m_Im = 1;

                       Console.Write(x.Equals(y));                       
                }
	}

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

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

.NET Framework

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

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

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