ASP. NET Error Handling Method

2. Web. config Configuration
   <System. Web>
   <Customerrors mode = "on" defaultredirect = "genericerrorpage.htm">
   <Error statuscode = "403" Redirect = "error403.htm"/>
   <Error statuscode = "404" Redirect = "error404.htm"/>
   </Customerrors>
   </System. Web>
4. Application_error event handling
   Protected void application_error (Object sender, eventargs E)
   {
   Exception objerr = server. getlasterror (). getbaseexception ();
   Response. Write ("error:" + objerr. Message );
   Server. clearerror ();
   }
   You can refer to the technology here to get the description of the error exception and record it in the custom log file.
   Note that server. clearerror (); must be called. Otherwise, the error exception will be passed to the next layer.
6. Errorpage attributes
   <Script language = "C #" runat = "server">
   Protected void page_load (Object sender, eventargs e ){
   This. errorpage = "errorpage.htm ";
   }
   </SCRIPT>
8. Page_error event processing
   Protected void page_error (Object sender, eventargs E)
   {
   Exception objerr = server. getlasterror (). getbaseexception ();
   Response. Write ("error:" + objerr. Message );
   Server. clearerror ();
   }