I also suffer from this problem and i get soln
<asp:UpdatePanel runat="server" id="UpdatePanel" updatemode="Conditional">
<ContentTemplate>
<uc2:GetUserScraps ID="GetUserScraps1" runat="server" />
</ContentTemplate>
</asp:UpdatePanel>
Update this panel from code behind on button click event like
UpdatePanel.Update()
If your design structure in table use update panel like
<asp:UpdatePanel ID="updpnlRefresh" runat="server" UpdateMode="Conditional">
<ContentTemplate>
//Your table structure