hi

I wrote below code in gridview...

<asp:CommandField EditText = "تغییر نام گروه"  UpdateText = "بروزرسانی" CancelText = "کنسل"  ShowEditButton="True" ItemStyle-Width="100px" ButtonType="Link" ControlStyle-CssClass="/GVE" ItemStyle-HorizontalAlign="Center" ItemStyle-VerticalAlign="Middle" ShowCancelButton="False" CausesValidation="false" ItemStyle-BackColor="#84BA00"
                                    Visible = '<%#Eval("GroupName").ToString() == "فروشندگان ملک" ? true : false %>'/>

but below error happen:

Server Error in '/' Application.

Parser Error

Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately. Parser Error Message: Databinding expressions are only supported on objects that have a DataBinding event. System.Web.UI.WebControls.CommandField does not have a DataBinding event. Source Error:

Line 460:                 
Line 461:  
Line 462:                                <asp:CommandField EditText = "تغییر نام گروه"  UpdateText = "بروزرسانی" CancelText = "کنسل"  ShowEditButton="True" ItemStyle-Width="100px" ButtonType="Link" ControlStyle-CssClass="/GVE" ItemStyle-HorizontalAlign="Center" ItemStyle-VerticalAlign="Middle" ShowCancelButton="False" CausesValidation="false" ItemStyle-BackColor="#84BA00"
Line 463:                                    Visible = '<%#Eval("GroupName").ToString() == "فروشندگان ملک" ? true : false %>'/>
Line 464:                                <asp:TemplateField ItemStyle-Width="76px">

Best regards

neda