Delegate.RemoveImpl Method
Microsoft Silverlight will reach end of support after October 2021. Learn more.
Removes the invocation list of a delegate from the invocation list of another delegate.
Namespace: System
Assembly: mscorlib (in mscorlib.dll)
Syntax
'Declaration
Protected Overridable Function RemoveImpl ( _
d As Delegate _
) As Delegate
protected virtual Delegate RemoveImpl(
Delegate d
)
Parameters
- d
Type: System.Delegate
The delegate that supplies the invocation list to remove from the invocation list of the current delegate.
Return Value
Type: System.Delegate
A new delegate with an invocation list formed by taking the invocation list of the current delegate and removing the invocation list of value, if the invocation list of value is found within the current delegate's invocation list. Returns the current delegate if value is nulla null reference (Nothing in Visual Basic) or if the invocation list of value is not found within the current delegate's invocation list. Returns nulla null reference (Nothing in Visual Basic) if the invocation list of value is equal to the current delegate's invocation list.
Exceptions
| Exception | Condition |
|---|---|
| MemberAccessException | The caller does not have access to the method represented by the delegate (for example, if the method is private). |
| MethodAccessException | Application code attempts to access this member late-bound, for example, by using the Type.InvokeMember method. |
Remarks
If the invocation list of value matches a contiguous set of elements in the current delegate's invocation list, then the invocation list of value is said to occur within the current delegate's invocation list. If the invocation list of value occurs more than once in the current delegate's invocation list, the last occurrence is removed.
Version Information
Silverlight
Supported in: 5, 4, 3
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0
XNA Framework
Supported in: Xbox 360, Windows Phone OS 7.0
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.