RadComboBox duplicating values inside RadGrid

[Mahmoud]

Hey,

I am reusing the exact example in the following telerik demo RadGrid with UC.
The one and only change I made is that I reload my Combobox from a database. Everything works fine when Editing an existing row, but when I hit the "Add new Record", the RadComboBox gets the same values twice. I tracked this in the debug mode, and the RadComboBox shows the correct items count, but when rendered in the page, it is X2.

here is the only code I changed from the above example, I am using 2010 Q3.

Private Sub Page_DataBinding(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.DataBinding

      Me.CmDealer.Items.Clear()
      Me.CmDealer.AppendDataBoundItems = True
      Me.CmDealer.Items.Add(New ListItem("", "0"))

      Me.CmDealer.DataValueField = "ID"
      Me.CmDealer.DataTextField = "Name"
      Me.CmDealer.DataSource = DataManager.GetDealers()
      Me.CmDealer.DataBind()

      Dim dealer As Object = DataBinder.Eval(DataItem, "IDDEALER")

      If dealer.Equals(DBNull.Value) Then
          CmDealer.SelectedValue = 0
          Return
      End If

      CmDealer.SelectedValue = CInt(dealer)
      CmDealer.DataSource = Nothing

      ''''''''''''''''''''''

      Me.CmManager.Items.Clear()
      Me.CmManager.AppendDataBoundItems = True
      Me.CmManager.Items.Add(New ListItem("", "0"))

      Me.CmManager.DataValueField = "ID"
      Me.CmManager.DataTextField = "Name"
      Me.CmManager.DataSource = DataManager.GetManagers()
      Me.CmManager.DataBind()

      Dim manager As Object = DataBinder.Eval(DataItem, "IDMANAGER")

      If manager.Equals(DBNull.Value) Then
          CmManager.SelectedValue = 0
          Return
      End If

      CmManager.SelectedValue = CInt(manager)
      CmManager.DataSource = Nothing

  End Sub

What is wrong with my code?

Thanks in advance!
-Mahmoud

[Mahmoud]

Problem sovled!

Thanks!