I am making a post-back as part of the drop event. I would like value of e.valid to be set whether the post-back was successful. The issue I run into is that since $.post(..) is an asynchronous call, the Treelist will determine whether the move is valid with the current value of e.valid before the data is returned from the post.
Is there a way to determine whether to complete the drop from the result of the post-back?
Thank You in advance