AJAX AsyncPostBackTrigger ( button ) UpdatePanel Refresh

Its a very simple fix (ASP.NET AJAX). I have a page in UpdatePanel there is a Gridview. Page Also have a ASP Button I want to Asyn refresh GridView when button is clicked. It should be something like that but I am stuck in between. Its a very simple fix.A experience programmer will take only 10 min to fix it Also my buget is very small Only bid I f you do this in $10 Also I can consider you to provide more work if its worked out well. (Complete code will be provided to you ) Sample Code:- <asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional"> <ContentTemplate> <GridView>....</GridView> </ContentTemplate> <Triggers> <asp:AsyncPostBackTrigger ControlID="abc" EventName="click" /> </Triggers> </asp:UpdatePanel> protected void btnRefresh_Click(object sender, EventArgs e) { [login to view URL](); } Thanks