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[CLOSED] Exception Handling - Throwing Exceptions from Controller, catching them in generic handler

  1. #1
    Jan 04, 2014, 2:30 PM

    [CLOSED] Exception Handling - Throwing Exceptions from Controller, catching them in generic handler

    Hi,

    My requirement is very basic, I want to throw an exception from controller and I would like to catch the exception in generic handler.\

    Setup of generic handler
    @Html.X().ResourceManager(ViewBag.ManagerConfig as MvcResourceManagerConfig).Listeners(l => l.AjaxRequestException.Fn = "genericHandle")
    Generic Handler, sitting in script 
    var globalHandle =
    function (response, result, el, eventType, action, extraParams, o) {
    }
    Following is how we throw the exception
    catch(FaultException<T> fault)
{
   System.Net.Http.HttpResponseMessage message = 
      new System.Net.Http.HttpResponseMessage();
   message.ReasonPhrase = fault.Message;
   message.Content = new System.Net.Http.StringContent(fault.Message);
   System.Web.Http.HttpResponseException ex = 
     new System.Web.Http.HttpResponseException(message);
   throw ex;
}
    My problem is no matter how I throw exception, I never get the exception-message that I assigned in the controller. I have searched whole graph of response and rest of the parameters but didn't find my message anywhere.

    Requirement:
    I just want to set an exception in the controller and throw it from the action method, then I wan to get hold of it in generic handler and show the exception message.

    I think I am missing something very obvious here, please guide.

    Cheers,
    Avinash
    Last edited by Daniil; Jan 10, 2014 at 10:44 AM. Reason: [CLOSED]
  2. #2
    Jan 06, 2014, 2:29 PM
    Hi @asolvent,

    We recommend the following approach.

    View
    <!DOCTYPE html>
<html>
<head>
    <title>Ext.Net.MVC v2 Example</title>  
</head>
<body>
    @Html.X().ResourceManager().Listeners(l => l.AjaxRequestException.Handler = "alert(result.errorMessage); return false;")

    @Html.X().Button().Text("Throw Exception").DirectClickAction("Click")
</body>
</html>
    Controller Action
    public ActionResult Click()
{
    DirectResult r = new DirectResult();
    try
    {
        throw new Exception("My Error Message");
    }
    catch (Exception e)
    {
        r.ErrorMessage = e.Message;
    }

    return r;
}
  3. #3
    Jan 22, 2014, 12:20 PM
    Thanks Dani,

    Worked like a charm.

    Cheers,
    Avi

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