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AppDomain.UnhandledException

guy
In my application I have an event handler to catch unhandled exceptions, as
per the MSDN documentation, however when an unhandled exception is thrown I
get the Dialogue first, then the event handler catches the exception. How do
I supress the dialogue?

guy
Nov 21 '05 #1
2 2317
guy,
Depending on the type of application you are creating, .NET has three
different global exception handlers.

For ASP.NET look at:
System.Web.HttpApplication.Error event
Normally placed in your Global.asax file.

For console applications look at:
System.AppDomain.UnhandledException event
Use AddHandler in your Sub Main.

For Windows Forms look at:
System.Windows.Forms.Application.ThreadException event
Use AddHandler in your Sub Main.

It can be beneficial to combine the above global handlers in your app, as
well as wrap your Sub Main in a try catch itself.

There is an article in the June 2004 MSDN Magazine that shows how to
implement the global exception handling in .NET that explains why & when you
use multiple of the above handlers...

http://msdn.microsoft.com/msdnmag/is...T/default.aspx

For example: In my Windows Forms apps I would have a handler attached to the
Application.ThreadException event, plus a Try/Catch in my Main. The
Try/Catch in Main only catches exceptions if the constructor of the MainForm
raises an exception, the Application.ThreadException handler will catch all
uncaught exceptions from any form/control event handlers.

Hope this helps
Jay
"guy" <gu*@discussions.microsoft.com> wrote in message
news:90**********************************@microsof t.com...
In my application I have an event handler to catch unhandled exceptions,
as
per the MSDN documentation, however when an unhandled exception is thrown
I
get the Dialogue first, then the event handler catches the exception. How
do
I supress the dialogue?

guy

Nov 21 '05 #2
guy
many thanks Jay

guy

"Jay B. Harlow [MVP - Outlook]" wrote:
guy,
Depending on the type of application you are creating, .NET has three
different global exception handlers.

For ASP.NET look at:
System.Web.HttpApplication.Error event
Normally placed in your Global.asax file.

For console applications look at:
System.AppDomain.UnhandledException event
Use AddHandler in your Sub Main.

For Windows Forms look at:
System.Windows.Forms.Application.ThreadException event
Use AddHandler in your Sub Main.

It can be beneficial to combine the above global handlers in your app, as
well as wrap your Sub Main in a try catch itself.

There is an article in the June 2004 MSDN Magazine that shows how to
implement the global exception handling in .NET that explains why & when you
use multiple of the above handlers...

http://msdn.microsoft.com/msdnmag/is...T/default.aspx

For example: In my Windows Forms apps I would have a handler attached to the
Application.ThreadException event, plus a Try/Catch in my Main. The
Try/Catch in Main only catches exceptions if the constructor of the MainForm
raises an exception, the Application.ThreadException handler will catch all
uncaught exceptions from any form/control event handlers.

Hope this helps
Jay
"guy" <gu*@discussions.microsoft.com> wrote in message
news:90**********************************@microsof t.com...
In my application I have an event handler to catch unhandled exceptions,
as
per the MSDN documentation, however when an unhandled exception is thrown
I
get the Dialogue first, then the event handler catches the exception. How
do
I supress the dialogue?

guy


Nov 21 '05 #3

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