How I do for add titles to every column of combobox template?

[kronnos_indigo]

Hi..

I have any SVL.combobox with items templates what it contain 4 to 6 columns. How I do for add titles to every column as similar that ASP.RadComboBox?
Example:

<telerikInput:RadComboBox x:Name="rcbTercero" Width="212" MaxDropDownHeight="250" FontFamily="Trebuchet MS" FontSize="10.667"
                Background="#FFD6E9F2" IsHighlighted="True" IsReadOnly="True" Height="25" Canvas.Left="145" Canvas.Top="-1" >
                <telerikInput:RadComboBox.ItemTemplate >
                        <DataTemplate>
                            <Grid Margin="3,3,3,3" Width="750">
                 <Grid.ColumnDefinitions>
                   <ColumnDefinition Width="40" />
                   <ColumnDefinition Width="120" />
                   <ColumnDefinition Width="100" />
                   <ColumnDefinition Width="60" />
                   <ColumnDefinition Width="60" />
                   <ColumnDefinition Width="100" />
                   <ColumnDefinition Width="80" />
                   <ColumnDefinition Width="20" />
                   <ColumnDefinition Width="40" />
                   <ColumnDefinition Width="80" />
                   <ColumnDefinition Width="40" />
                   <ColumnDefinition Width="40" />
                   <ColumnDefinition Width="40" />
                 </Grid.ColumnDefinitions>
                 <TextBlock Grid.Column="0" Foreground="Black" FontFamily="Verdana" FontSize="8" Text="{Binding codPersona}" HorizontalAlignment="Right" Margin="0,0,10,0"/>
                 <TextBlock Grid.Column="1" Foreground="Black" FontFamily="Verdana" FontSize="8" Text="{Binding RazonSocial}" HorizontalAlignment="Left" Margin="3,0,0,0"/>
                 <TextBlock Grid.Column="2" Foreground="Black" FontFamily="Verdana" FontSize="8" Text="{Binding Nombre}" HorizontalAlignment="Left" Margin="3,0,0,0"/>
                 <TextBlock Grid.Column="3" Foreground="Black" FontFamily="Verdana" FontSize="8" Text="{Binding Telefono}" HorizontalAlignment="Left" Margin="3,0,0,0"/>
                 <TextBlock Grid.Column="4" Foreground="Black" FontFamily="Verdana" FontSize="8" Text="{Binding Direccion}" HorizontalAlignment="Left" Margin="3,0,0,0"/>
                 <TextBlock Grid.Column="5" Foreground="Black" FontFamily="Verdana" FontSize="8" Text="{Binding numDocIdentificacion}" HorizontalAlignment="Left" Margin="3,0,0,0"/>
                 <TextBlock Grid.Column="6" Foreground="Black" FontFamily="Verdana" FontSize="8" Text="{Binding Nit}" HorizontalAlignment="Left" Margin="3,0,0,0"/>
                 <CheckBox Grid.Column="7" Height="20" Width="20" Content="x" IsChecked="{Binding Vigente}" HorizontalAlignment="Left" Margin="3,0,0,0"/>
                 <TextBlock Grid.Column="8" Foreground="Black" FontFamily="Verdana" FontSize="8" Text="{Binding Celular}" HorizontalAlignment="Left" Margin="3,0,0,0"/>
                 <TextBlock Grid.Column="9" Foreground="Black" FontFamily="Verdana" FontSize="8" Text="{Binding Abrev}" HorizontalAlignment="Left" Margin="3,0,0,0"/>
                 <TextBlock Grid.Column="10" Foreground="Black" FontFamily="Verdana" FontSize="8" Text="{Binding Mini}" HorizontalAlignment="Left" Margin="3,0,0,0"/>
                 <TextBlock Grid.Column="11" Foreground="Black" FontFamily="Verdana" FontSize="8" Text="{Binding PaginaWeb}" HorizontalAlignment="Left" Margin="3,0,0,0"/>
                 <TextBlock Grid.Column="12" Foreground="Black" FontFamily="Verdana" FontSize="8" Text="{Binding eMail}" HorizontalAlignment="Left" Margin="3,0,0,0"/>
                                 <TextBlock Grid.Column="11" Visibility="Collapsed" Text="{Binding FactorDstoCliente}" />
                 <TextBlock Grid.Column="12" Visibility="Collapsed" Text="{Binding FactorDstoProv}" />
             </Grid>
            </DataTemplate>
            </telerikInput:RadComboBox.ItemTemplate>

Juan Pablo Díaz S,
Bogotá - Colombia