How to get RadGrid controls on Drop Down (Combo) conrol's select changed event

[Phil]

Dim _comboBox As RadComboBox = TryCast(o, RadComboBox)
    If _comboBox.SelectedIndex > -1 Then
        Dim _dataItem As GridDataItem = CType(_comboBox.NamingContainer, GridDataItem)
        _dataItem("Column2").Text = "Stuff"
    End If
End If

The above updates a cell.  How do I find the control of Column2?

[Bruno]

Provide some details about your goal. This will ensure a better answer for your question.

[Phil]

The Drop down has a value and text.  The text is a suggested description for the description GridBoundColumn.  So, I need to find the GridBoundColumn and place the SelectedValue in it.  This needs to be done in insert and edit forms of the grid control.
_dataItem("DescrColumn").Text = _comboBox.SelectedValue

[Princy]

Hello Phil,

The GridBoundColumn displays a TextBox when the grid is in EditMode. Try out the following code to access the TextBox control for the GridBoundColumn in the SelectedIndexChanged event of the RadComboBox:
cs:

     Protected Sub RadComboBox3_SelectedIndexChanged(ByVal o As Object, ByVal e As RadComboBoxSelectedIndexChangedEventArgs)
         Dim _comboBox As RadComboBox = DirectCast(o, RadComboBox)
         Dim _editItem As GridEditableItem = DirectCast(_comboBox.NamingContainer, GridEditableItem)
         Dim _textBox As TextBox = DirectCast(_editItem("FirstName").Controls(0), TextBox)
         _textBox.Text = _comboBox.SelectedItem.Text
     End Sub

Thanks
Princy.