The RadTimePicker doesn't work correctly when it is placed inside a listbox. When you select a time from the dropdown, then the dropdown closes, but the binding is not updated.
The following snippet shows the problem:
I guess the ListBox and/or ListView intercepts the click, because it does work fine with an ItemsControl.
The following snippet shows the problem:
<ListBox x:Name="multipleItemsPresenter" ItemsSource="{Binding}"> <ListBox.ItemTemplate> <DataTemplate> <StackPanel Orientation="Horizontal"> <telerik:RadTimePicker Width="80" SelectedTime="{Binding Path=Time, Mode=TwoWay}"/> <TextBlock Margin="20,0,0,0" Text="{Binding Path=Time, Mode=OneWay}"> </StackPanel> </DataTemplate> </ListBox.ItemTemplate></ListBox>I guess the ListBox and/or ListView intercepts the click, because it does work fine with an ItemsControl.