not able to insert in gridview

my gridview is not taking the values from the grid to insert new records
kindly help
This is how i made the code:
<EmptyDataTemplate>
Service_Name<asp:TextBox ID="Service_Name" runat="server"></asp:TextBox>
NSE<asp:CheckBox ID ="checkbox1" runat ="server"/>
BSE<asp:CheckBox ID ="checkbox2" runat ="server"/>
NSE_FO<asp:CheckBox ID="checkbox3" runat ="server"/>
MCX<asp:CheckBox ID ="checkbox4" runat ="server"/>
MCX_SX<asp:CheckBox ID="checkbox5" runat ="server"/>
NCDEX<asp:CheckBox ID="checkbox6" runat = "server"/>
NSE_SX<asp:CheckBox ID="checkbox7" runat ="server"/>
Manager_1<asp:CheckBox ID ="checkbox8" runat ="server"/>
Manager_2<asp:CheckBox ID="checkbox9" runat ="server"/>
MIS_101<asp:CheckBox ID ="checkbox10" runat ="server"/>
MIS_102<asp:CheckBox ID="checkbox11" runat ="server"/>
<asp:Button ID="btnInsert" runat="Server" Text="Insert" CommandName="NewInsert" UseSubmitBehavior="False" />
</EmptyDataTemplate>

Thanks & Regards
Priti