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ConditionalWeakTable<TKey, TValue>.Remove Method

Removes a key and its value from the table.

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

public bool Remove(
	TKey key


Type: TKey
The key to remove.

Return Value

Type: System.Boolean
true if the key is found and removed; otherwise, false.


key is null.

If the key is garbage-collected during this operation, the method does not raise an exception and the return value is undefined.

.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

  • SecurityCriticalAttribute 

    requires full trust for the immediate caller. This member cannot be used by partially trusted or transparent code.

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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