<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>
i am using this with update panel it works fine.
Now i have added modal popup. Used ajax 15.1 toolkit.
(they said it doesnt require ajax script manager now.)
When i use it without ajaxscript manager it doesnt work. But when i use ajaxscript manager it works. But then i cant use scriptmanager (as two instance cant run).If i dont use script manager update panel wont work. Also i dont dont have any master page.
<cc1:ModalPopupExtender ID="mp1" runat="server" PopupControlID="Panel1" TargetControlID="btnShow"
CancelControlID="btnClose" BackgroundCssClass="modalBackground">
</cc1:ModalPopupExtender>
<cc1:ToolkitScriptManager ID="tksc" runat="server"></cc1:ToolkitScriptManager>