get ItemsControl in ItemCollection CollectionChanged event
问题 my itemscontrol : <ItemsControl x:Name="MyItemsControl" Style="{StaticResource ItemsControlStyle}" /> <Style TargetType="{x:Type ItemsControl}" x:Key="ItemsControlStyle"> <Setter Property="ItemTemplate" Value="{StaticResource ItemsControlDataItem}"></Setter> </Style> <DataTemplate x:Key="ItemsControlDataItem" > <Ellipse Width="45" Height="45"></Ellipse> </DataTemplate> iv'e hooked an event to see when the underlying collection as changed : ((INotifyCollectionChanged)MyItemsControl.Items)