Create combo box in datagrid dynamically in silver light 3

Dim templateCol As New DataGridTemplateColumn()
templateCol.CellTemplate = XamlReader.Load("<DataTemplate xmlns='http://schemas.microsoft.com/client/2007'" & vbCr & vbLf & vbCr & vbLf & "xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml'><ComboBox x:Name='comb' /> </DataTemplate>")
 Datagrid.Columns.Add(templateCol)

Have a look at this link[^]. It does not describe adding a combobox, but it describes adding a DataTemplateColumn dynamically. Adding a combobox to the template column is not very difficult.