What steps will reproduce the problem? 1. from the codeproject demo, i changed the listbox to itemscontrol 2. added a datatemplate with usercontrol root 3. in DragInfo.ctor itemParent remains null

I had an ItemsControl as well, but gong requires a SelectedItem property so it won't work. We have to use a ListBox instead.

I have a ListView whose View is a GridView. Within the ListView rows there is a GridViewColumn.CellTemplate consisting of a DataTemplate set to which picks up a DataTemplate specific to the item class. That template contains a RichTextBox.

Dragging over that cell also causes itemParent to remain null in the DragInfo constructor.