Repeater, Link Button, onItemCommand

I am trying to add link button in repeater. It was anchor tag earlier. But i was not able to call code behind from anchor tag with onclick event. So i changed it to link button but that is also not working i tried all possible ways to call the code behind from the anchor tag and link button. But no success. Can some one please help me.
     <asp:Repeater ID="Repeater1" runat="server" onitemcommand="Repeater1_ItemCommand" onitemcreated="Repeater1_ItemCreated" OnItemDataBound="rptData_ItemDataBound">                       <ItemTemplate>                     <li>                      ...