from: honda@luckstar.com.tw
date: 2018-03-18
subject: Exception時避免 Send error report to Microsoft

----------
ref:
https://msdn.microsoft.com/en-us/library/system.unhandledexceptioneventargs.exceptionobject(v=vs.110).aspx

using System;
using System.Security.Permissions;

public class Example 
{
   [SecurityPermission(SecurityAction.Demand, Flags=SecurityPermissionFlag.ControlAppDomain)]
   public static void Main()
   {
      AppDomain currentDomain = AppDomain.CurrentDomain;
      currentDomain.UnhandledException += new UnhandledExceptionEventHandler(MyHandler);

      try {
         throw new Exception("1");
      } catch (Exception e) {
         Console.WriteLine("Catch clause caught : {0} \n", e.Message);
      }

      throw new Exception("2");
   }

   static void MyHandler(object sender, UnhandledExceptionEventArgs args) 
   {
      Exception e = (Exception) args.ExceptionObject;
      Console.WriteLine("MyHandler caught : " + e.Message);
      Console.WriteLine("Runtime terminating: {0}", args.IsTerminating);
   }
}
// The example displays the following output:
//       Catch clause caught : 1
//       
//       MyHandler caught : 2
//       Runtime terminating: True
//       
//       Unhandled Exception: System.Exception: 2
//          at Example.Main()  

----------
ref: 
https://stackoverflow.com/questions/473366/prevent-send-error-report-to-microsoft

static void Main() {
    try
    {
        SubMain();
    }
    catch (Exception e)
    {
        HandleUnhandledException(e);
    }
}

private static void SubMain()
{
    // Setup unhandled exception handlers
    AppDomain.CurrentDomain.UnhandledException += // CLR
       new UnhandledExceptionEventHandler(OnUnhandledException);
     Application.ThreadException += // Windows Forms
       new System.Threading.ThreadExceptionEventHandler(
           OnGuiUnhandledException);
     Application.EnableVisualStyles();
     Application.SetCompatibleTextRenderingDefault(false);
     Application.Run(new frmMain());
}

// CLR unhandled exception
private static void OnUnhandledException(Object sender,
   UnhandledExceptionEventArgs e)
{
    HandleUnhandledException(e.ExceptionObject);
}

// Windows Forms unhandled exception
private static void OnGuiUnhandledException(Object sender,
   System.Threading.ThreadExceptionEventArgs e)
{
    HandleUnhandledException(e.Exception);
}