Code Corner

I was using Infragistics drag-and-drop framework and set an HTML table element as my drop target. Now I needed to know during drag operation over which HTML table cell I am moving. I needed that in order to dynamically change appearance of draggable markup depending on which cell I am currently over.

(Think a strategy game - you're placing construction on the terrain - if there is enough unoccupied room - the draggable item becomes green, otherwise it remains red).

The solution is to use elemAtPoint property during DragMoveHandler event. Read more...