[CLOSED] Problem when trying to show an error captured by the loader Listener named 'Exception'.

[RCN]

[Daniil]

Hi,

Well, or parse that raw responseText on client via JavaScript or catch the Exception on server and send some response which would be easily to parse.

I would prefer the second approach - catching on server.

[RCN]

I tried to, but...

Wich one should I use? I tried AjaxResult but didn't work out pretty well.

Thanks in advance,

[Daniil]

Well, any one that could be easily parsed within the Exception listener.

You could just send a ContentResult with just an error message.

[RCN]

O.O Niiiiceee...

But tell me, how the Exception listener was fired if I did not threw any exception? (I catched the exception then "return new ContentResult { Content = ex.Message };")

Just curious, the problem is solved, you can close this post

[Vladimir]

You can return HttpStatusCodeResult with status code and status text

return new HttpStatusCodeResult(500, "Unexpected error is occured");

Status text can be retrieved from response object on the client side

<Exception Handler="alert(response.statusText);" />

[Daniil]

+1 to Vladimir. It would be best to set up Response.StatusCode to be ensure the response will be considered as a failure one.

But tell me, how the Exception listener was fired if I did not threw any exception? (I catched the exception then "return new ContentResult { Content = ex.Message };")

A JavaScript exception occurs when Loader tries to parse a response

Ext.encode(response);

where the response is just a string with the error message.

Therefore the Exception event is triggered. Certainly, it is not good.

Setting up StatusCode to 500 causes the Loader won't parse the response at all.

[RCN]

\o/ Thanks a lot you two.

[RCN]

OK...

To use the

return new HttpStatusCodeResult(500, "Unexpected error is occured");

I replace the return type of my method to ActionResult, to be able to return ContentResult sometimes or HttpStatusCodeResult in case of errors.

When i alert the "response.statusText" it only comes with "Internal server error", despite the fact that i put "Unexpected error is occured" on the constructor.

[Vladimir]

The ASP.Net Development server (from Visual Studio) eats the status description.
You need to test this with a real IIS server.