Ajax Server control Update panel used gridview in asp.net

//Used before update panel using 'ScriptManager' control darg and drop on your source page

<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>

//using updatepanel
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>

  <asp:GridView ID="GridView5" runat="server">
  </asp:GridView>

</ContentTemplate>
</asp:UpdatePanel>

Used updatepanel outside gridview , the gridview doesnot reload or blink on click sorting and paging