>I'd like to delete a node in an exising TreeView. I've never worked with this control before. The app I've inherited allows Add and Edit, but no Delete.

There is a Remove command:

lcNodeKey = "_KEYNAME"
TRY
    thisform.oleTreeView.Nodes.Remove(lcNodeKey)
CATCH TO loException
ENDTRY

The parameter is the nodekey value of the node that you want to delete. I put the remove in a TRY - ENDTRY block to catch an exception if the nodekey does not exist (node improperly referenced or already deleted).