How to put CommandField inside TemplateField in ASP.Net

hi

I put commandfield into TemplateField:

<asp:TemplateField ItemStyle-Width="48px" ItemStyle-VerticalAlign="Middle">
     <ItemTemplate>  
         <asp:CommandField EditText = "تغییر نام گروه"  UpdateText = "بروزرسانی" CancelText = "کنسل"  ShowEditButton="true" ItemStyle-Width="100px" ButtonType="Link" ControlStyle-CssClass="linkGVE" ItemStyle-HorizontalAlign="Center" ItemStyle-VerticalAlign="Middle" ShowCancelButton="False" CausesValidation="false" ItemStyle-BackColor="#84BA00"/>                           
     </ItemTemplate>
</asp:TemplateField>

but it doesn't show any thing in gridview...

best regards

neda