I'm adding an item and then wanting to refresh the TreeView. It works every other time. The node is always added, but the treeview is refreshed to display it only after I click to add another node. At that time, both new nodes show up. I'm guessing that the first ajax call hasn't completed when the treeview.dataSource.read() statement is reached. Is there a way to execute a "wait" until the AddNode statement has completed?