1 <%@ Page Language="C#" MasterPageFile="~/MasterPages/SamplePageWithCode.master" 
 2     AutoEventWireup="true" 
 3     CodeFile="03_UpdatePanelTriggers.aspx.cs" 
 4     Inherits="_02_UpdatePanel_03_UpdatePanelTriggers" 
 5     Title="UpdatePanel 03: Events and UpdatePanel" %>
 6 <asp:Content ID="Content1" ContentPlaceHolderID="MainContent" Runat="Server">
 7     <asp:TextBox ID="CustomerSearch" runat="server"></asp:TextBox>&nbsp;
 8         <asp:button ID="SearchButton" runat="server" Text="Search" />
 9         <atlas:AutoCompleteExtender ID="AutoComplete" runat="server">
10             <atlas:AutoCompleteProperties Enabled="true"
11                  ServiceMethod="GetCustomerAbbr"
12                  ServicePath="~/CustomerService.asmx"
13                  TargetControlID="CustomerSearch" />
14         </atlas:AutoCompleteExtender>
15     <br />
16     By enabling Triggers on our UpdatePanel, we can allow controls outside the panel
17     to trigger async postbacks.&nbsp; Click the button to change the sort.<br />
18     Triggers can be control events or value change events.<br />
19     &nbsp;<br />
20         <asp:Button ID="SortChange" runat="server" OnClick="ChangeSort" Text="Sort Country DESC" />
21         <br />
22         <atlas:UpdatePanel ID="UpdateGrid" runat="server" Mode="conditional">
23             <ContentTemplate>
24                 <asp:GridView ID="GridView1" runat="server" AllowPaging="True" AllowSorting="True" DataSourceID="NWindDb" PageSize="5">
25                 </asp:GridView>
26             </ContentTemplate>
27             <Triggers>
28                 <atlas:ControlEventTrigger ControlID="SortChange" EventName="Click" />
29             </Triggers>
30         </atlas:UpdatePanel>
31         <asp:SqlDataSource ID="NWindDb" runat="server" ConnectionString="<%$ ConnectionStrings:NorthwindDb %>"
32             SelectCommand="SELECT [CustomerID], [CompanyName], [ContactName], [Country] FROM [Customers]">
33         </asp:SqlDataSource>
34 </asp:Content>