Windows Form Application Exception

Catch Application Exceptions in a Windows Forms Application

In Windows Forms applications, when an exception is thrown anywhere in the application (on the main thread or during asynchronous calls), you can catch it by registering for the ThreadException event on the Application. In this way you can treat all the exceptions in the same way.

Application.ThreadException += new ThreadExceptionEventHandler(MyCommonExceptionHandlingMethod);

private static void MyCommonExceptionHandlingMethod(object sender, ThreadExceptionEventArgs t)
{
    //Exception handling...
}

Create Windows Form with Exception information on catch?

Sure, just create any old form, and display it using ShowDialog at that point. You can put whatever you want on it. You could then put various buttons on it for "continue", "restart", "quit", etc. You can then inspect a property of the form after ShowDialog returns to determine what to do, based on the button clicked.

Windows form application exception

I'm guessing that you have bound a List that is initially empty, (or other sort of collection that does not generate list changed events) to your DataGridView, and then added items to this List.

The items you add will display correctly on your grid, but clicking on a row will cause this exception. This is because the underlying CurrencyManager will be reporting its current row position as an offset of -1. It will stay this way because the List does not report changes to the grid.

You should only bind your list to the grid if it has some items in it to begin with, or rebind when you add them.

See also my answer to this question, which is essentially the same problem.

WinForms Global Exception Handling?

If #26 is an exception then you can use AppDomain.CurrentDomain.UnhandledException event. If it's just a return value, then I don't see any chance to handle that globally.

public static void Main()
{
    AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(MyHandler);

    // start main thread here
}

static void MyHandler(object sender, UnhandledExceptionEventArgs args) 
{
    Exception e = (Exception) args.ExceptionObject;
    Console.WriteLine("MyHandler caught : " + e.Message);
}

---

Related Topics