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op_Inequality Method

Delegate.op_Inequality Method

Determines whether the specified delegates are not equal.

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

public static bool operator != (
	Delegate d1,
	Delegate d2
J# does not support overloaded operators.
JScript supports the use of overloaded operators, but not the declaration of new ones.



The first delegate to compare.


The second delegate to compare.

Return Value

true if d1 is not equal to d2; otherwise, false.

Two delegates are considered not equal if they are of different types, or have different methods, different targets, or different invocation lists.

If the two delegates are not of the same type, they are not considered equal.


In the .NET Framework version 1.0 and 1.1, two delegates are considered equal if their targets, methods, and invocation list were equal, even if the delegates were of different types.

The methods and targets are compared for equality as follows:

  • If the two methods being compared are both static and are the same method on the same class, the methods are considered equal and the targets are also considered equal.

  • If the two methods being compared are instance methods and are the same method on the same object, the methods are considered equal and the targets are also considered equal.

  • Otherwise, the methods are not considered to be equal and the targets are also not considered to be equal.

Two invocation lists are not equal if they have different sizes, if they are ordered differently, or if at least one element from one list represents a method or target that is different from that represented by its corresponding element in the other list.

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

Community Additions

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