Asp. NET four kinds of error mechanism

excerpt from the cnblogs fantasy soft article:

1,webconfig Settings

<?xml version= "1.0"?>
<configuration>
<system.web>
<customerrors mode= "on" defaultredirect= "genericerrorpage.htm" >
<error statuscode= "403" redirect= "error403.htm"/>
<error statuscode= "404" redirect= "error404.htm"/>
</customErrors>
</system.web>
</configuration>

2,global.asax Settings

protected void Application_Error (object sender, EventArgs e) {
Exception objerr = Server.GetLastError (). GetBaseException ();
Response.Write ("Error:" + objerr.message);
Server.ClearError ();
}

3, using the ErrorPage property

<script language= "C #" runat= "Server" >
protected void Page_Load (object sender, EventArgs e) {
This. ErrorPage = "errorpage.htm";
}
</script>

4, using the Page_Error event handling method
protected void Page_Error (object sender, EventArgs e) {
Exception objerr = Server.GetLastError (). GetBaseException ();
Response.Write ("Error:" + objerr.message);
Server.ClearError (); Also pay attention to the use of this Code
} 

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