WeakEventManager.ListenerList.Purge Method

Removes all entries from the list where the underlying reference target is a null reference.

Namespace:  System.Windows
Assembly:  WindowsBase (in WindowsBase.dll)

public bool Purge()

Return Value

Type: System.Boolean
Returns true if any entries were purged; otherwise, false.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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