ASP.Net/Page/Trace Mode
Page level tracing
<%@ Page Trace="true"%>
<html>
<head>
<title>Page Level Tracing</title>
</head>
<body>
<form method="post" action="pageleveltracing.aspx" runat="server">
<asp:label text="Name" runat="server" />
<asp:textbox name="txtName" runat="server" />
</form>
</body>
</html>