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Delegate.RemoveAll Method

.NET Framework 4.5

Removes all occurrences of the invocation list of a delegate from the invocation list of another delegate.

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

public static Delegate RemoveAll(
	Delegate source,
	Delegate value
)

Parameters

source: Type: System.Delegate
The delegate from which to remove the invocation list of value.

value: Type: System.Delegate
The delegate that supplies the invocation list to remove from the invocation list of source.

Return Value

Type: System.Delegate
A new delegate with an invocation list formed by taking the invocation list of source and removing all occurrences of the invocation list of value, if the invocation list of value is found within the invocation list of source. Returns source if value is null or if the invocation list of value is not found within the invocation list of source. Returns a null reference if the invocation list of value is equal to the invocation list of source, if source contains only a series of invocation lists that are equal to the invocation list of value, or if source is a null reference.

Exceptions

Exception	Condition
MemberAccessException	The caller does not have access to the method represented by the delegate (for example, if the method is private).
ArgumentException	The delegate types do not match.

Remarks

If the invocation list of value matches a contiguous set of elements in the invocation list of source, then the invocation list of value is said to occur within the invocation list of source. If the invocation list of value occurs more than once in the invocation list of source, all occurrences are removed.

Version Information

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0, 1.1

.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

.NET Framework Security

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

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

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