I have a Border with Background="#50FFFFFF". As you will notice, the A component (the opacity) of the color is less than 255, making the Border partially see-through. I use this Border to lighten the appearance of several elements underneath it (this was much easier than modifying the details of all the other controls & their Styles). However, it prevents me from using Drag & Drop to drop elements onto the elements underneath it. Is there any way to allow the Drag & Drop events (such as DragEnter) to be detected by the elements underneath the Border? Thanks.