Comments on: How to improve ASP.NET AJAX error handling

By: Update panel case study | Private: My Note

Update panel case study | Private: My Note — Sun, 25 Oct 2009 18:14:03 +0000

[...] http://encosia.com/index.php/2007/07/18/how-to-improve-aspnet-ajax-error-handling/ [...]

By: Meltac

Meltac — Fri, 09 Oct 2009 17:37:46 +0000

Thanks again, I will consider that.

By: Dave Ward

Dave Ward — Fri, 09 Oct 2009 16:26:09 +0000

As far as I know, there’s no detriment to setting it as high as you need. If you’re sending more than the default, you may want to consider breaking your data into pages or otherwise partitioning it though. It’s a good sign you may be dealing with too much data at once.

By: Meltac

Meltac — Fri, 09 Oct 2009 10:00:35 +0000

Thanks Dave, that didn’t do the trick, but it leaded me the way to solve another error in our app…

Btw, are there any best practices or recommendations on how large to set the maxJsonLength?

By: Dave Ward

Dave Ward — Fri, 09 Oct 2009 03:10:58 +0000

You may need to adjust maxJsonLength upward. See here for more info: http://msdn.microsoft.com/en-us/library/bb763183.aspx

By: Meltac

Meltac — Thu, 08 Oct 2009 07:08:50 +0000

Under some (my) conditions, when using args.get_error(), the error message is being cut due to some “undocumented” length limitations.

Any ideas how to increase the max message length of the AJAX error?

By: Another John

Another John — Wed, 30 Sep 2009 19:20:13 +0000

This is nice code and was fairly easy to adapt for use to masterpages, ajax, and Telerik controls. I used Telerik’s RadWindow alert box as the modal dialog – worked really slick. This good example saved me a few steps today.

John

By: Dave Ward

Dave Ward — Sat, 12 Sep 2009 21:43:01 +0000

That’s probably due to the rendered ClientIDs being changed in the Master/Content scenario. In my specific example, it shouldn’t matter since the div isn’t runat=”server”, but your situation may be impacted.

Try replacing any $get(‘ID’) with $get(‘< %= ID.ClientID %>‘) to make sure your JavaScript is referencing the correct element.

By: Mattias

Mattias — Fri, 11 Sep 2009 08:36:13 +0000

Im trying to get this to work with a masterpage.
I have a updatepanel on a content page and if I remove the updatepanel it works.

How do I solve this ?

By: Hani

Hani — Tue, 01 Sep 2009 15:54:20 +0000

Hello,

Kindly note that i am using the APPLICATION ERRO function to catch all unhandled errors. what is happening is that AJAX errors are now handled by the Application_Error.

Please advise how to handle AJAX errors alone.

Sub Application_Error(ByVal sender As Object, ByVal e As EventArgs)
Dim vLastError As New Exception
vLastError = Server.GetLastError().GetBaseException()

If vLastError Is Nothing Then
Application(“GLOBAL_ErrorMessage”) = “No Errors”
Else
Application(“GLOBAL_ErrorMessage”) = vLastError.Message
End If

Server.ClearError()
Response.Redirect(“~/errors.aspx”)
‘Server.Transfer(“~/errors.aspx”)
End Sub

By: ASP.NET Error Handling Resources - C#

ASP.NET Error Handling Resources - C# — Tue, 24 Mar 2009 07:32:16 +0000

[...] 5) How to improve ASP.NET AJAX error handling [...]

By: Alex

Alex — Wed, 18 Mar 2009 20:45:29 +0000

Great work! Thanks a lot!

By: Anthony Walsh

Anthony Walsh — Tue, 14 Oct 2008 01:21:54 +0000

Great work thanks a lot!

Also check this page out:

Customizing Error Handling for ASP.NET UpdatePanel Controls

…it demonstrates both methods, the ‘modal alert box’ method and the ‘div’ method.

Regards,
Anthony Walsh.

By: makhina kryo

makhina kryo — Wed, 13 Aug 2008 20:26:40 +0000

Thousands thanks!!!
I use master pages and AJAX. I have been fighting against this AJAX silence upon postback errors for hours and hours! Now AJAX errors have colors and texts. Thanks to you! I use your code as followed …

  // If there is, show the custom error.
  //Show the custom message ...
  var errorMessage = args.get_error().message;
  var divError = $get('Error');
  divError.style.visibility = "visible";
  divError.innerHTML = errorMessage + "" + "";

By: Anonymous

Anonymous — Mon, 14 Jul 2008 22:50:18 +0000

Try running your program not in Debug mode (ctrl + F5)