Disable GridViewDataColumn content placed in Celltemplate

[Kamran]

Hi Team,
How I will diable a control placed in GridViewDataColumn cell template programmatically so that content inside CellTemplate become disable.
I need all this functionality when gridview render.

when i use GridViewColumn.IsEnabled= false; It doesn't disable button placed inside DataTemplate.

<telerik:GridViewDataColumn x:Name="clmDelete" Width="30" Header="" HeaderTextAlignment="Center" >
 <telerik:GridViewDataColumn.CellTemplate>
   <DataTemplate>
     <my1:Button x:Name="btnDelete" BorderThickness="0" Background="White"
    Click="btnDelete_Click"  HorizontalAlignment="Left" Grid.Column="0"  Width="20" Height="20">
    <Image Source="/UI.SmartClient;component/~or83E_files/delete16.ico" Width="Auto" />
    </my1:Button>
   </DataTemplate>
 </telerik:GridViewDataColumn.CellTemplate>
</telerik:GridViewDataColumn >

foreach (Telerik.Windows.Controls.GridViewColumn column in gv.Columns)
{
       column.isEnabled=false; 
}