Inherit Exception class to log all subsequent occurrences of exception

If I want to log all occurrences of exceptions throughout my application so far,

should I inherit Exception class and throw all exception of that class,

whose constructor will log the error deta开发者_Go百科ils..

or any idea or suggestion???

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Depending on the type of Application (ASP.NET/Console etc) there are different approaches to take.

For Windows Forms Applications this is the way to go: -

namespace YourNamespace
{
    static class Program
    {

        [STAThread]
        static void Main()
        {
            AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException;
            Application.ThreadException += new System.Threading.ThreadExceptionEventHandler(Application_ThreadException);
            Application.SetUnhandledExceptionMode(UnhandledExceptionMode.CatchException);
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }

        static void Application_ThreadException(object sender, System.Threading.ThreadExceptionEventArgs e)
        {
            HandleException(e.Exception);
        }

        static void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
        {
            HandleException((Exception)e.ExceptionObject);
        }

        static void HandleException(Exception e)
        {
            //Handle the Exception here
        }

    }
}

In ASP.NET you can capture all Unhandled Exceptions by using the Application_OnError event within the Global.asax or by hooking up to the Application.OnError event with your own HttpModule.

You can also use one of these third party exception handlers.

ELMAH supports ASP.NET Applications

http://code.google.com/p/elmah/

Exceptioneer (We build this - just flagging up my interest in the area) supports ASP.NET, Console Applications, Windows Forms Appliactions, WPF Applications etc.

http://exceptioneer.com/

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Logging exception in the Exception's contructor is not a good idea.

Which application type you are using: web or windows?

If you are using asp.net then you can redirect your page to a common error page and log the error from that page. Asp.net also provides application_error event which fires in case of unhandled exception.

Usually, you use try/catch block to handle exception. You can log exception in the Catch block.

try
{

//your code

}

Catch(Exception ex)

{

 Log(ex);

}

You can use microsoft logging application block (or any other logging api) to log your exception.