Error Logging and Screen Shot.

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Hi,
My Application is Designed in c#.net 3.5,

I want to Handle Unhandled Exceptions occured while running the application!
How can i do this? I Googled this Question but cant find answer!

How can i collect the Log of Errors, As my Application is Client Server, I need to Collect ALl the Errors on the centralised Place.

Also I need a screen shot of the Form when Erros occur, can you suggest any Idea When should i capture when error Occurs?

Prathamesh

Posted 4-Aug-11 3:33am

prathameshpitale

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2 solutions

Solution 1

You can handle the Application.ThreadException event to handle all unhandled exceptions that are thrown in the primary application thread. To catch exceptions that occur in threads not created and owned by Windows Forms, use the AppDomain.UnhandledException.

Posted 4-Aug-11 4:30am

Shameel

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prathameshpitale 4-Aug-11 11:48am

Can you give me Example or Link of example?

Sergey Alexandrovich Kryukov 7-Aug-11 1:23am

Correct, but it needs one more step: Application.SetUnhandledExceptionMode, so my 4.

Also, OP's request for the code sample is reasonable here -- I provided it, please see.
--SA

[no name] 7-Aug-11 9:52am

Thanks for the correction, I somehow missed that.

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Sergey Alexandrovich Kryukov · Accepted Answer · 2011-08-06T19:21:00

Solution 2

Here is a code sample for you, as it's really good to know:

C#

Application.SetUnhandledExceptionMode(UnhandledExceptionMode.CatchException);

//...

Application.ThreadException += delegate(object sender, System.Threading.ThreadExceptionEventArgs e) {
   MessageBox.Show(
       string.Format("{0}:\n{1}", e.Exception.GetType().Name, e.Message),
       string.Format(" {0}: Exception", Application.ProductName),
       MessageBoxButtons.OK,
       MessageBoxIcon.Error);
}; //Application.ThreadException

I usually call first line from application entry point (Main), and the rest of it — form a constructor of a main form.

—SA

Posted 6-Aug-11 19:21pm

Sergey Alexandrovich Kryukov

Updated 6-Aug-11 19:23pm

v2

Comments

prathameshpitale 8-Aug-11 1:20am

Thank you, But can you tell me How can i have A Screenshot for the Current form where Excepetion has been Generated,

Sergey Alexandrovich Kryukov 8-Aug-11 1:25am

I don't understand; probably it needs some explanation of the problem. It depends on exception. Was taking a screenshot failed, or writing a file, or something else? If it failed it failed, isn't it? The user gets exception information. If file was not created due to permission problem, the user can repeat the operation and save it in proper location, but if the reason is your bug, the only solution is fixing it :-)
--SA

prathameshpitale 8-Aug-11 9:21am

hi SAKryukov,
I am using this code, and it works fine. But when i Remove CLR Headers and Offuscate the code, it Produces error, cannot change Thread Exception mode once any control is created on the Thread, WHat should i do ?