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<head id="Head1" runat="server">
<title>Untitled Page</title>
<link href="StyleSheet.css" rel="stylesheet" type="text/css" />
</head>
<body>
<form id="form1" runat="server">
<div>
<div id="lblError" style="color:Red; font-weight:bold"></div>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<br />
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<div style="background-color:#FFFFDD; padding: 20px">
<asp:Label ID="Label1" runat="server" Font-Bold="True"></asp:Label>
<br />
<br />
<asp:Button ID="Button1" runat="server" Text="Refresh Time" />
</div>
</ContentTemplate>
</asp:UpdatePanel>
<asp:UpdatePanel ID="UpdatePanel2" runat="server">
<ContentTemplate>
<div style="background-color:#FFFFDD;padding: 20px">
<asp:Label ID="Label2" runat="server" Font-Bold="True"></asp:Label>
<br />
<br />
<asp:Button ID="Button2" runat="server" Text="Refresh Time" />
</div>
</ContentTemplate>
</asp:UpdatePanel>
<br />
<asp:UpdatePanel ID="UpdatePanel3" runat="server">
<ContentTemplate>
<div style="background-color:#FFFFDD;padding: 20px">
<asp:Label ID="Label3" runat="server" Font-Bold="True"></asp:Label>
<br />
<br />
<asp:Button ID="Button3" runat="server" Text="Refresh Time" />
</div>
</ContentTemplate>
</asp:UpdatePanel>
<br />
<script type="text/javascript">
function pageLoad()
{
var pageManager = Sys.WebForms.PageRequestManager.getInstance();
pageManager.add_endRequest(endRequest);
}
function endRequest(sender, args)
{
// Handle the error.
if (args.get_error() != null)
{
$get("lblError").innerHTML = args.get_error().message;
// Suppress the message box.
args.set_errorHandled(true);
}
}
</script>
</div>
</form>
</body>
</html>
public partial class UpdatePanelTest : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
Label1.Text = DateTime.Now.ToLongTimeString();
Label2.Text = DateTime.Now.ToLongTimeString();
Label3.Text = DateTime.Now.ToLongTimeString();
}
}