Session value lost when page redirects to another aspx page RSS

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  labshasan

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  6 Points

  4 Posts

  Session value lost when page redirects to another aspx page

  Sep 07, 2011 01:02 PM|LINK

  I have added two user object and then tried to store those in Session. I tried to get those from the sam aspx page first. It works fine there.

  Then i tried to get that from another page using response.redirect. in that page i have used same code but it's (for List key) not giving same output, though for single "Name" key it's working well.

   

  HttpSessionStateSample.Entity.

  User userObj = new HttpSessionStateSample.Entity.User();

  List<HttpSessionStateSample.Entity.User> pProvider = new List<HttpSessionStateSample.Entity.User>();

  userObj.UserName =

  "Hasan";

  pProvider.Add(userObj);

  userObj =

  null;

  userObj =

  new HttpSessionStateSample.Entity.User();

  userObj.UserName =

  "Arif";

  pProvider.Add(userObj);

  userObj =

  null;

  try

  {

  HttpSessionStateSample.Utility.

  SessionManager.SetItemToSession("Name", "Hasan");

  HttpSessionStateSample.Utility.

  SessionManager.SetProfileInfo(pProvider);

   

  Response.Redirect(

  "~/WebProfile.aspx");

  another page code:

  string

  name = HttpSessionStateSample.Utility.SessionManager.GetItemFromSession("Name").ToString();

  List<HttpSessionStateSample.Entity.User> profileList = Utility.SessionManager.GetProfileInfo();

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  reza141414

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  472 Posts

  Re: Session value lost when page redirects to another aspx page

  Sep 07, 2011 03:22 PM|LINK

  hi..

  use this way :

  session["FirstUser"]= any_object_u_want;
  

  session["FirstUser"]="hassan";

  and restore the session value like this:

  any_object_u_want=(class_any_object_u_want)session["FirstUser"]; 

  string name=(string)session["FirstUser"];

  http://www.WorldDotNet.com
  dont forget to mark as answerd...
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  labshasan

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  4 Posts

  Re: Session value lost when page redirects to another aspx page

  Sep 08, 2011 06:53 AM|LINK

  there is no problem with string type. problem is when i am stroing a list in Session. then after redirecting to another page i am loosing the list value stored in session from the previous page. i have searched for this and one hints got from many sites that it may be a case of Response.Redirect. Some one suggested to use Server.Transfer. I have tried to use Server.Transfer but it's not give me permission to compile it well.

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  bhagirath

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  77 Posts

  Re: Session value lost when page redirects to another aspx page

  Sep 08, 2011 06:55 AM|LINK

  Hello,

  Make sure your are redirecting on same server(URL).

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  salman behera

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  Re: Session value lost when page redirects to another aspx page

  Sep 08, 2011 07:39 AM|LINK

  get some idea here.....

  http://www.dotnetbips.com/articles/c585b4d3-93c5-4c66-9d49-8e1946f4d311.aspx

  http://forums.asp.net/t/1223291.aspx

  http://msdn.microsoft.com/en-us/library/6c3yckfw.aspx

  Thanks....

  "…Mark As Answer" if my reply helpful to you…”
  Sincerely,
  Salman
  
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  labshasan

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  4 Posts

  Re: Session value lost when page redirects to another aspx page

  Sep 08, 2011 09:47 AM|LINK

  I have added code like:

  To Add:

  System.Web.HttpContext.Current.Session.Add(key, obj);

  To Get:

  return System.Web.HttpContext.Current.Session[key];

  From the default page i have added two item in session - a string 'name', a list item 'profileinfo'.

  at the default page it get the list value and string value, here the 'profileinfo' key displays item count = 2.

  But when it redirects to 'WebProfile' page i get the two key item name - 'name' and 'profileinfo'. the 'name' key contains it's value but the 'profileinfo' key displays item count = 0;

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  labshasan

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  4 Posts

  Re: Session value lost when page redirects to another aspx page

  Sep 08, 2011 11:50 AM|LINK

  At last i have got one possible solution for my problem. What i have done is - i have taken the objects as static (1) and then comment out (2) the lines which was clearing the list items after inserting them into Session["PropertyInfo"].

  1.

  static List<HttpSessionStateSample.Entity.User> pProvider;

  static HttpSessionStateSample.Entity.User userObj;

  2.

  pProvider.Clear();

  pProvider = null;

   

  I don't think this is the best or even the only solution. There may have some technical issues involved with such cases. Still looking for the logic behind it, because the why commenting these lines displaying correct list items (count=2) in both of the pages.

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  bleroy

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  Microsoft

  Re: Session value lost when page redirects to another aspx page

  Sep 14, 2011 08:29 PM|LINK

  Ouch. Using static variables is a big no-no and a sure way to run into thread safety issues. Session is designed to deal with this. Working around a problem by re-implementing the standard component is a very bad idea. Jsut use the overload to the redirect API that doesn't terminate the thread.

  Bertrand
  ----
  This posting is provided "AS IS" with no warranties, and confers no rights.