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Delegate.Inequality Operator (Delegate, Delegate)


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Determines whether the specified delegates are not equal.

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

public static bool operator !=(
	Delegate d1,
	Delegate d2


Type: System.Delegate

The first delegate to compare.

Type: System.Delegate

The second delegate to compare.

Return Value

Type: System.Boolean

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.


when invoked late-bound through mechanisms such as Type.InvokeMember. Associated enumeration: ReflectionPermissionFlag.MemberAccess

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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