Why jquery ajax calls fails after session timeout in asp.net mvc?

Question

when there is a value in my session variable my ajax calls work properly... But when a session is timedout it doesn't seem to work returning empty json result....

public JsonResult GetClients(int currentPage, int pageSize)
        {
            if (Session["userId"]!=null)
            {
                var clients = clirep.FindAllClients(Convert.ToInt32(Session["userId"])).AsQueryable();
                var count = clients.Count();
                var results = new PagedList<ClientBO>(clients, currentPage - 1, pageSize);
                var genericResult = new { Count = count, Results = results ,isRedirect=false};
                return Json(genericResult);
            }
            else
            {
                var genericResult = new {redirectUrl = Url.Action("Create", "Registration"), isRedirect = true };
                return Json(genericResult);
            }

        }

However else part does'nt seem to work....

   success: function(data) {
       alert(data.Results);
        if (data.isRedirect) {
            window.location.href = data.redirectUrl;
        }
   }

EDIT:

My global.asax has this,

public static void RegisterRoutes(RouteCollection routes)
        {
            routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

            routes.MapRoute(
                "Clients",                                             
                "Clients/{action}/{id}",                          
                new { controller = "Clients", action = "Index", id = "" }  
            );

            routes.MapRoute(
               "Registrations",                                              
               "{controller}/{action}/{id}",                          
               new { controller = "Registration", action = "Create", id = "" } 
           );
        }

What's it actually doing when the Session has timed out? Is it returning a JSON object at all? — Matthew Abbott
– Matthew Abbott, Commented Jun 8, 2010 at 7:20
@matthew ya it returns a json object but it doesn't get redirected to my Login view instead it stays in the same view... — ACP
– ACP, Commented Jun 8, 2010 at 7:45
Open your page in Firefox with Firebug and put a breakpoint on the on the alert(data.Results) line, you should then be able to inspect the object. Typically with javascript, if an error occurs, executing of the current script block will terminate. You need to find out if the properties your are trying to access are actually available in the object. Also, try just "location.href" to see if that makes a difference. — Matthew Abbott
– Matthew Abbott, Commented Jun 8, 2010 at 7:48
@Matthew i found this {"redirectUrl":"/","isRedirect":true} in my response.... — ACP
– ACP, Commented Jun 8, 2010 at 9:16
Looks to me like your Url.Action("Create", "Registration") isn't returning what you are expecting. Also, are you having any script errors? — Matthew Abbott
– Matthew Abbott, Commented Jun 8, 2010 at 9:30

Mike Gleason jr Couturier · Accepted Answer · 2010-06-15 21:29:58Z

2

+100

Try to redirect whatever the response is:

success: function(data) {
  location = 'http://www.google.ca';
}

if that redirects, you can eliminate that possibility

Then try to explicitely compare the variable and keep the URL hardcoded for the moment:

success: function(data) {
    if (data.isRedirect && data.isRedirect === true) {
        alert('must redirect to ' + data.redirectUrl);
        location = 'http://www.google.ca';
    }
    else
    {
        alert('not redirecting ' + );
    }
}

You can also see what data.redirectUrl returns

Comke back to me after that...

answered Jun 15, 2010 at 21:29

Mike Gleason jr Couturier

9,2064 gold badges44 silver badges60 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

starskythehutch · Accepted Answer · 2010-06-15 07:47:40Z

0

If the Session has timed out out then the Session object will be null. You are attempting to access this object without checking if it exists which will be throwing an exception.

Do you have an "onError" callback function setup?

answered Jun 15, 2010 at 7:47

starskythehutch

3,3481 gold badge28 silver badges36 bronze badges

2 Comments

ACP Over a year ago

ya i dont have an "onError" callback function setup... What should i do in that "onError" callback function? Should i redirect my user to login page..

starskythehutch Over a year ago

Do whatever you need to do when an error occurs, but for development I would suggest that you probably need to alert it to the screen somehow.

Collectives™ on Stack Overflow

Why jquery ajax calls fails after session timeout in asp.net mvc?

2 Answers 2

Comments

2 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

2 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related