Comments on: Code 4004 “Unhandled error in silverlight application”

By: Scott Leckie

Scott Leckie — Fri, 23 Dec 2011 18:36:57 +0000

Thanks for that, Bryan

By: Bryan Sampica

Bryan Sampica — Fri, 23 Dec 2011 13:59:22 +0000

Thanks for this little tidbit: I started hitting this error, though my circumstances were different. I'm using SIlverlight 5 and RIA services, but I'm doing most of the work in a derived class, and wiring up a Context in the code behind.
I have client side validation using class attributes, as well as a custom validator that can only run on the server, so to fix my problem here's what I had to do:
context.SubmitChanges().Completed += (so,ea) =>
{
if (((SubmitOperation)so).HasError) ((SubmitOperation)so).MarkErrorAsHandled();
// Rest of the work I do on completion
}

By: Steve Osborne

Steve Osborne — Thu, 22 Sep 2011 20:43:04 +0000

Thank you Siclesia. Your suggestion worked for me:
"You can set-up a break point in App.xaml.cs @ private void Application_UnhandledException(object sender, ApplicationUnhandledExceptionEventArgs e)
this will show the exception detail."

By: siclesia

siclesia — Fri, 01 Jul 2011 08:36:32 +0000

You can set-up a break point in App.xaml.cs @ private void Application_UnhandledException(object sender, ApplicationUnhandledExceptionEventArgs e)

this will show the exception detail.

By: Gautham

Gautham — Sun, 12 Jun 2011 12:00:31 +0000

Hello,
I was struggling on some error for quite along time. I am able to handle that after reading this blog.
Thankyou very much.
Regards,
Gautham

By: prachi

prachi — Tue, 03 May 2011 12:31:30 +0000

I m also getting the the same exception while cliking on button..so plz…help me for solving this problem……..

By: Rwsar

Rwsar — Mon, 25 Apr 2011 10:50:42 +0000

I am getting the same error when click onn browser back button .please help me to fix that bug.Unhandled exception 4004.

By: Reza

Reza — Fri, 18 Mar 2011 13:44:41 +0000

Hello ,I am getting the same exception.
I have combobox and datagrid that both have domaindatasource.for which one I need add this code?
Regards

By: Tema Shore

Tema Shore — Fri, 11 Mar 2011 03:28:40 +0000

I am getting the same exception and cannot figure out twhere the exception is coming from. I tried detach but it does not seem to do the trick…
Can someone help me?
Thanks

By: Scott Leckie

Scott Leckie — Thu, 17 Feb 2011 20:19:25 +0000

On the data source, add an event handler for SubmittedChanges. Another poster suggested the LoadedData event.

The key, though, is to detach the debugger so that you can see where the exception happened, and then put the code in that method.