Exception don't fire with RadAjaxManager

[ephillipe]

Hi,
I testing the RadAjaxManager version 2008.2.1001.35 and have the folow problem:
When I cause a Exception, this exception don't is showed for my client. If I turn off the AjaxManager, the error appear, if I turn on, the exception don't show.

Here a short sample of my test:

    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            throw new Exception("Erro aqui");
        }
    }

Exception with RadAjaxManager enabled:

[Exception... "'Sys.WebForms.PageRequestManagerServerErrorException: Sys.WebForms.PageRequestManagerServerErrorException: Erro aqui' when calling method: [nsIDOMEventListener::handleEvent]"  nsresult: "0x8057001c (NS_ERROR_XPC_JS_THREW_JS_OBJECT)"  location: "JS frame :: chrome://firebug/content/spy.js :: onHTTPSpyReadyStateChange :: line 497"  data: no]
http://localhost:2296/ScriptResource.axd?d=1GY4RXHYwBwgKWzh2AM6bUDkaYg5j8XpWH_s9iPzAysRQSXCRcmHBSLn7X8KRD15vb_BkPhMpI8wtG864MygjTVbihyBlzvoYm32GnlMsw81&t=ffffffff81a68333
Line 6391

Exception with

 Erro aqui
Descrição: Ocorreu uma exceção não tratada durante a execução da atual solicitação da Web. Examine o rastreamento de pilha para obter mais informações sobre o erro e onde foi originado no código.

Detalhes da Exceção: System.Exception: Erro aqui

Erro de Origem:

Linha 17:         protected void Button1_Click(object sender, EventArgs e)
Linha 18:         {
Linha 19:             throw new Exception("Erro aqui");
Linha 20:         }
Linha 21:     }


Arquivo de Origem: D:\Pessoal\MeusDocumentos\Visual Studio 2008\Projects\WebApplication2\WebApplication2\Default.aspx.cs    Linha: 19

[Iana Tsolova]

Hi ephillipe,

I tested your scenario in the attached sample. As you can see when you click the button there, an alert appear displaying the exception message. Note that when a page is ajaxified, the error messages are shown in alert popups.
Find more about error handling with Ajax here.

Best wishes,
Iana
the Telerik team

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[ephillipe]

Hi Iana,
I test your attached application and works. But if I change the Framework of application for 3.5, the error do not is displayed in a popup any more. The error is displayed, in my case, on a status bar of IE and in console error's of Firefox.

thanks for help,
Erick Almeida.

[Iana Tsolova]

Hi ephillipe,

Yes, you are right, in .NET 3.5 the error handling with AJAX is a bit different from this in .NET 2.0. In this case, I suggest that you try the below approaches:

• Use the AllowCustomErrorsRedirect property of the ScriiptManager and show the error there.
•  Handle the ScriptManager control's AsyncPostBackError event, which is raised when there is a page error during an asynchronous postback, and display the error message through it.

Check it out and let me know if you need further directions/help.

Kind regards,
Iana
the Telerik team

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