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.

  • Encrypted names? Can you give an example?
    – blah238
    Commented Feb 21, 2013 at 19:48
  • @blah238 sorry I meant ArcMap not Catalog. I've corrected my question and tags.
    – DaBears
    Commented Feb 21, 2013 at 19:56
  • What? That wasn't my question at all. What do you mean by "encrypted names"?
    – blah238
    Commented Feb 21, 2013 at 20:30
  • Wells Featureclass = G01P01L0023 in sde
    – DaBears
    Commented Feb 21, 2013 at 21:02
  • Well that's weird.
    – blah238
    Commented Feb 21, 2013 at 21:20

2 Answers 2


I think you need to implement IGxObject and display your objects in a GxContentsView. See the Catalog and CatalogUI library overviews.

Another possibility might be to use the IDataObjectHelper. See Richie Carmichael's blog post on this topic.


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?

  • yes that approach does sound easier. if I were to use a button to load the layers into arcmap how do I get access to the activeview?
    – DaBears
    Commented Feb 22, 2013 at 14:01
  • In 10.1 VB .net it would be: Dim pMXDocument As IMxDocument pMXDocument = My.ArcMap.Document Dim pMap As IMap pMap = pMXDocument.FocusMap
    – Hornbydd
    Commented Feb 22, 2013 at 14:53
  • Thanks this worked for me and I was able to add layers from my addin to my arcmap session
    – DaBears
    Commented Feb 22, 2013 at 16:26

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