HOW TO FIND CLICK EVENT OF BUTTON INSIDE FOOTR TEMPLATE IN GRIEDVIEW

<asp:TemplateField HeaderText="Address">
<ItemTemplate>
<%#Eval("adress")%>

</ItemTemplate>
<FooterTemplate>
<asp:Button ID="Button1" runat="server" Text="Insert" CommandName="add" />
</FooterTemplate>
</asp:TemplateField>

I have to find the click event of button inside griedviw ??????????
Please provide the code to find click event