asp.net mvc - Why always fires OnFailure when return View() to Ajax Form? -

I am trying to log-in with the Ajax-supported log-in.

I created my controller in some logic to sign the user and then returns the normal partial welcome message and logoff action ActionLink My verb method looks like this:

 Public Action Logon (Logon Model Model, String Return URL) {If (ModelState.IsValid) {If Subscription Service Validation User (Model User Name, Model Password)) {FormsService.SignIn (model.UserName , Model.RememberMe); (Request.IsAjaxRequest ()) // // Here's the problem: (see "login inform", model);} and (if !! string.isnalaut (return URL)) redirect return (return url) ; And redirection return (return) "index", "home");}} other {ModelState.AddModelError ("", "the supplied username or password is incorrect."); If (request .asAxAxEndest) {return content ("was an error!);}}} Return view (model);}  

And I was trying to return this simple partial

  Welcome & lt; b & gt; & lt;% = Html.Encode (Model.UserName)%> & lt; / b & gt;! & Lt;% = Html.exeLink ("Log Off", "Logoff", "Account")%>  

and two-partly typed for LogOnModel. < / P>

But if I see ("partial name") always with status code 500 onfile . When I returned the content ("my message") everything is getting correct.

So please tell me that I Why always get "this status code = 500" ?? Where's the big mistake ??.

Try the following:

  If requested (request.saAx request) () Return a partial view ("Login inform", Model);}  

Ensure Make sure you have a strongly typed l OggededInForm.ascx is in the same view folder as the controller name.

The error can not be used to see the exact error message acted on this AJAX request.