hmm nope, I got my problems solutions .. <ItemsControl ItemsSource="{Binding ConfiguredViews}"> <ItemsControl.ItemsPanel> <ItemsPanelTemplate> panels:FishEyePanel/ </ItemsPanelTemplate> </ItemsControl.ItemsPanel> </ItemsControl> here is what I was thinking. Thanks for bothering :P Moim Hossain R&D Project Manager BlueCielo ECM Solutions BV

You could also try using the BindingExpression class in your button's click event handler: BindingExpression expression = BindingOperations.GetBindingExpression(listBox, ListBox.DataContextProperty); expression.UpdateTarget();