I have a simple ArcMap Add-in that displays all featureclass names in a database inside of a ListBox. If I select a name or multiple names in the listbox, how can I drag and drop it in ArcMap? Just to give a quick summary, the purpose of this add-in is because the database has encrypted names and I have to show the "friendly names" in the ListBox control so I will use a special refrence table in SQL to populate the listbox with the friendly names.
This is just an idea and an alternative to drag 'n' drop. It sounds like you have a list box on a form that is being populated with friendly names. I'm guessing these will be simply text entries? Instead of trying to drag 'n' drop why not have a button that when clicked reads the selected items (your table names) in the list box, connects to the workspace and loads them into the map?
I would image that would be easier to implement unless drag 'n' drop is specifically required?