Thank you for writing.
In this case you can save the old node name and send another query to the database, read the data and find the old node by name or text, and change it after that. A sample code looks like this:
"Select Field2 from Table1 where Field2 = "
SqlDataReader = cmd.ExecuteReader()
foundNode.Text = newName
Additionally we have some great articles about databinding a RadTreeView
. You can find them in our help section - http://www.telerik.com/help/winforms/treeview-data-binding-data-binding-basics.html
I hope this helps.
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