How to fail Ajax.BeginForm in ASP.Net MVC?

Question

I have Ajax.BeginForm with OnSuccess & OnFailure javascript handlers.

How do fail from my controller so that OnFailure is called?

Yes, I used to call throw new HttpException(404) and it used to work.

But now, I have set a custom error handler that calls Server.ClearError(). Due to this Ajax.BeginForm thinks that no error has occurred.

I am using the error handler given here: ASP.NET MVC Custom Error Handling Application_Error Global.asax?

score 1 · Answer 1 · answered Apr 03 '10 at 20:43

1

You should just be able to throw an Exception. HttpException(404) is Not Found, which I don't think counts as an exception for OnFaiulre. Anything that results in a HTTP 500 should be interpreted as an error by the script.

answered Apr 03 '10 at 20:43

Dave Swersky

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I think it is anything above the 2xx range, but regardless, if customerrors is on in web.config, it will never get called. – gangelo Feb 23 '12 at 03:48

score 0 · Answer 2 · answered Feb 23 '12 at 03:46

The way I handle this, is to set the Response.StatusCode = 500 and append a Header to my response object Response.AppendHeader("MyResponseHeader", "My Message");

In my .js OnFailure handler...

function OnFailure(ajaxContext) {
    alert(ajaxContext.status); // 500
    alert(ajaxContext.getResponseHeader("MyResponseHeader"));  // "My Message"
}

How to fail Ajax.BeginForm in ASP.Net MVC?

2 Answers2