CollectionView.OnBeginChangeLogging Method

Called by the base class to notify the derived class that a CollectionChanged has been posted to the message queue.

Namespace: System.Windows.Data
Assembly: PresentationFramework (in presentationframework.dll)

protected virtual void OnBeginChangeLogging (
	NotifyCollectionChangedEventArgs args
protected void OnBeginChangeLogging (
	NotifyCollectionChangedEventArgs args
protected function OnBeginChangeLogging (
	args : NotifyCollectionChangedEventArgs
You cannot use methods in XAML.



The NotifyCollectionChangedEventArgs object that is added to the change log.

Return Value

The purpose of this notification is to allow collection views to take a snapshot of the information, which is often the state of the data collection, that is needed at the time of the post.

Exception typeCondition


If args is a null reference (Nothing in Visual Basic).

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0