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<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs"
Inherits="Default"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Exceptions at work</title>
</head>
<body>
To test this page effectively, first disable the customErrors section in the web.config file and
then try again with the section enabled.
<div id="pageContent">
<form id="form1" runat="server">
<ul><li>
<asp:LinkButton ID="LinkButton1" runat="server" OnClick="LinkButton1_Click">Click to throw a NotImplementedException exception</asp:LinkButton>
</li><li>
<asp:LinkButton ID="LinkButton2" runat="server" OnClick="LinkButton2_Click">Click to generate an internal error</asp:LinkButton></li>
<li>
<asp:HyperLink ID="HyperLink1" runat="server" NavigateUrl="missing.aspx">Click to raise a HTTP 404 error</asp:HyperLink></li>
</ul>
</form>
</div>
</body>
</html>
File: Default.aspx.cs
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class Default : System.Web.UI.Page
{
protected void Page_Error(object sender, EventArgs e)
{
Exception ex = Server.GetLastError();
if (ex is NotImplementedException)
Server.Transfer("/notimplementedexception.aspx");
else
Server.Transfer("/apperror.aspx");
Server.ClearError();
}
protected void Page_Load(object sender, EventArgs e)
{
}
protected void LinkButton1_Click(object sender, EventArgs e)
{
throw new NotImplementedException("The feature you requested is not implemented yet.");
}
protected void LinkButton2_Click(object sender, EventArgs e)
{
string test = null;
Response.Write(test.ToString());
}
}
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