WPF drag and drop from a ListBox that has SelectionMode=Extended

Question

I have a ListBox and want the selection-mode to be extended. Also I want have to implement drag and drop functionality. The problem now is, that if the mouse is clicked on a

Answer 1

The easiest workaround i can think of would be to change the ListBoxItem to select on MouseUp not Down like so and change the ContainerGenerator to serve your custom ListBoxItems:

public class CustomListBoxItem : ListBoxItem  
{  
    protected override void OnMouseLeftButtonDown( MouseButtonEventArgs e )  
    {  
        //do nothing
    }  

    protected override void OnMouseLeftButtonUp( MouseButtonEventArgs e )  
    {  
        base.OnMouseLeftButtonDown( e );  
    }  
}  

You might need some MouseLeave/LeftButtonDown logic if you want to prevent different items selecting when moving through the List while holding the mouse button down.