HttpContext.Current.Session["COLUMNLIST"] is null [Answered] RSS

• • Reply
  shijostephen

  Member

  40 Points

  158 Posts

  HttpContext.Current.Session["COLUMNLIST"] is null

  Sep 06, 2018 06:28 AM|shijostephen|LINK

  Hi

  I have set HttpContext.Current.Session["COLUMNLIST"] to a string value as below from ajax call to webmethod..

              [System.Web.Services.WebMethod(EnableSession = true)]
              public static string function2(string a,int id)
              {
                  HttpContext.Current.Session["COLUMNLIST"] = a;
                  return a;
              }
  

  Ajax call from another page to the webmethod

              $.ajax({
                  type: "POST",
                  url: "../ReportsAspx/ExpenseReport.aspx/function2",
                  data: '{ "a": "' + $("#ms").val() + '",id:1 }',
                  // data: JSON.stringify(GroupTravelDetailsModel),
                  //data:{GroupTravelID,
                  contentType: "application/json; charset=utf-8",
                  dataType: "json",
                  success: function () {
                      debugger;
                  },
                  failure: function (response) {
                      alert(response.d);
                  }
              });

  But  HttpContext.Current.Session["COLUMNLIST"] is null once the page loads after thiis  using below code from jquery of another page.

              window.location.href = '../ReportsAspx/ExpenseReport.aspx';

  Thanks

  Shijo

• • Reply
  PatriceSc

  All-Star

  48720 Points

  18184 Posts

  Re: HttpContext.Current.Session["COLUMNLIST"] is null

  Sep 06, 2018 06:48 AM|PatriceSc|LINK

  Hi,

  I suspect it could happen if you define your very first session variable using an Ajax call. Show the SessionID as part of your Ajax call as well as on the ExpenseReport page to show if you have a single or two separate browser sessions.

  If confirmed a quick fix could be to define a dummy session variable when ExpenseReport loads.

• • Reply
  shijostephen

  Member

  40 Points

  158 Posts

  Re: HttpContext.Current.Session["COLUMNLIST"] is null

  Sep 06, 2018 07:17 AM|shijostephen|LINK

  I am getting same session ID cuzljyacmf3zutch2cqsqaa1

  with below codes

          protected void Page_Init(object sender, EventArgs e)
          {
              string sessionId = this.Session.SessionID;
              //-------statements

  and

              [System.Web.Services.WebMethod(EnableSession = true)]
              public static string function2(string a,int id)
              {
                  string sessionId = System.Web.HttpContext.Current.Session.SessionID;
                  //------statements

  Thanks

  Shijo

• • Reply
  Nan Yu

  All-Star

  18815 Points

  3831 Posts

  Re: HttpContext.Current.Session["COLUMNLIST"] is null

  Sep 07, 2018 03:13 AM|Nan Yu|LINK

  Hi shijostephen ,

  I test your code and it works on my environment , please confirm that you are setting the session variable before redirect to that page in same session .

  Best Regards,

  Nan Yu