Renaming Nodes

[Omid]

hi telerik

i save nodes  name in sql database ,how can i get new name  after renaming a node  .?
i test this codes  :

Private Sub TreeDevices_TextChanged(sender As Object, e As EventArgs) Handles TreeDevices.ValueChanged
     
   dim Com as sqlcommand=" update Table1 set Field2='" &  TreeDevices.SelectedNode.Name & "' where field1 = " & TreeDevices.SelectedNode.Tag

            con.Open()
            com.ExecuteNonQuery()
            con.Close()
     
    End Sub

 after renaming a node event  "TreeDevices.ValueChanged" occur   but  "TreeDevices.SelectedNode.Name"  still return old name.
what can i do?

thank you
omid

[George]

Hi Omid,

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:

Dim cmd As New SqlCommand("Select Field2 from Table1 where Field2 = " + previousNodeName, Me.conn)
Dim reader As SqlDataReader = cmd.ExecuteReader()
reader.Read()
Dim newName As String = DirectCast(reader(0), String)

Dim foundNode As RadTreeNode = Me.FindNodes(previousNodeName)(0)
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.

Regards,
George
Telerik