GridView添加RadioButton列

aspx页面：

<asp:GridView ID="RadioGV" runat="server" AllowPaging="true" PageSize="5"
          OnRowDataBound="RadioGV_RowDataBound" >
       <Columns>
        <asp:TemplateField HeaderText="选择">
            <ItemTemplate>
                <asp:Literal ID="RadioButtonMarkup" runat="server"></asp:Literal>
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
</asp:GridView>

cs页面：

protected void RadioGV_RowDataBound(object sender, GridViewRowEventArgs e)
   {
       if(e.Row.RowType == DataControlRowType.DataRow)
       {
          Literal output = e.Row.FindControl("RadioButtonMarkup") as Literal;
          output.Text = string.Format("<input type=\"radio\" name=\"ProductGroup\" " +

 "id=\"RowSelector{0}\" value=\"{0}\"" ,e.Row.RowIndex);

 }

 }

这样就可以添加onclick事件，判断selectchange（）