<Window x:Class="ComboBoxColumnDemo.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Window1" Height="300" Width="300"
		xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
		>
    <Grid>
		<telerik:RadGridView x:Name="RadGridView1" AutoGenerateColumns="False" >
			<telerik:RadGridView.Columns>
				<telerik:GridViewComboBoxColumn HeaderText="Combo column"
				SelectedValueMemberPath="ID" 
				DisplayMemberPath="Name" 
				DataMemberBinding="{Binding CountryID}" />
				<telerik:GridViewDataColumn UniqueName="FirstName"/>
				<telerik:GridViewDataColumn UniqueName="LastName"/>
			</telerik:RadGridView.Columns>
		</telerik:RadGridView>
	</Grid>
</Window>
