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IsEmpty Property
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WeakEventManager.ListenerList.IsEmpty Property

Gets a value that declares whether this WeakEventManager.ListenerList is empty.

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

public bool IsEmpty { get; }
You cannot set this property in XAML.

Property Value

Type: System.Boolean
true if the list is empty; otherwise, false.

This method is equivalent to checking whether the Count is zero, and does not check whether any of the references in the list are now stale. If you want to assure that all references are still valid, call Purge just prior to checking the empty status of the list.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

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

.NET Framework

Supported in: 3.5, 3.0

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