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Listing 1.21 - PageTrace.aspx

Illustrates how to enable page-level tracing.

Listing 1.21 - PageTrace.aspx (C#)
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<%@ Page Language="C#" Trace="true" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">

    void Page_Load()
    {
        for (int counter = 0; counter < 10; counter++)
        {
            ListBox1.Items.Add("item " + counter.ToString());
            Trace.Warn("counter=" + counter.ToString());
        }
    }
    
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>Page Trace</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    
    <asp:ListBox
        id="ListBox1"
        Runat="server" />
    
    </div>
    </form>
</body>
</html>