How to get the session value from java script in code behind c#

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Hi,

I am trying get the value (system date time) from session in java script and bind to text box like date time required.

Thanks in Advance.

Posted 7-Oct-14 21:03pm

Shekar Raja

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anand.kmr1985 · Answer 1 · 2014-10-08T03:49:00

To get system datetime you can call PageMethod from javascript.

Follow the steps :
1. Add script manager to .aspx and set EnablePageMethods to true:

<asp:ScriptManager runat="server" EnablePageMethods="true">

2. Add using statement for System.Web.Services namespace in code behind :

using System.Web.Services;

3. Add WebMethod to code behind to get system datetime :

C#

[WebMethod]
public static string GetSystemDateTime()
{
    return DateTime.Now.ToString();
    //OR return HttpContext.Current.Session["SessionName"].ToString();
}

4. Now call WebMethod from javascript function and bind return value to the textbox :

XML

<script type="text/javascript">
        function ShowDate() {
            PageMethods.GetSystemDateTime(function (result) {
                document.getElementById("TextBoxID").value = result;
            });
        }
    </script>

Please don't forget to mark as answer if it helps you.

Suraj Sahoo | Coding Passion · Answer 2 · 2014-10-07T21:08:00

You can store the DateTime in a session like

C#

Session["DateTimeDemo"] = DateTime.Now;

Then use this to a viewmodel which is used for the viewpage.

C#

 var viewModel = new DemoModel{
 DateTimeDemo = Convert.ToDateTime(Session["LoggedInTime"]);
//Any other values ...if any..
 }
return View(viewModel);

And you can store that as a hidden field.

C#

<input type="text" id="datetime" data-val="@Model.DateTimeDemo"> </input>

and then in your script you add:

C#

var datetimeForDemo = $("#datetime").attr('data-val');

I guess you get some help from this
Thanks
:)

VC.J · Answer 3 · 2014-10-08T04:33:00

Solution 3

Try this

C#

protected void Page_Load(object sender, EventArgs e)
        {
            Session["sample"] = DateTime.Now; 
        }

in aspx

XML

<script type="text/javascript">
var sessionValue= '<%= Session["sample"]%>';
                   alert(sessionValue);
</script>

Posted 8-Oct-14 4:33am

VC.J

Updated 8-Oct-14 5:10am

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How to get the session value from java script in code behind c#

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