javascript - Session value in knockout - Stack Overflow

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In my viewModel i want to get the current session value. For that i have written like this :

self.currentUserId = ko.observable(HttpContext.Current.Session["UserID"]);

But its showing me error that

ReferenceError: HttpContext is not defined.

How to define HttpContext? OR Is there any way to get current session value?

In my viewModel i want to get the current session value. For that i have written like this :

self.currentUserId = ko.observable(HttpContext.Current.Session["UserID"]);

But its showing me error that

ReferenceError: HttpContext is not defined.

How to define HttpContext? OR Is there any way to get current session value?

• javascript
• asp
• knockout.js

Share Improve this question Follow asked Nov 1, 2012 at 8:35 akeesethakeeseth 84522 gold badges1616 silver badges3333 bronze badges 2

• 1 What technology do you use? Webforms or MVC? What is your view engine: aspx, razor? Your ko viewmodel is inlined in your view or it is in a separate js file? – nemesv Commented Nov 1, 2012 at 8:37
• I am using webforms with aspx view engine. My viewmodel is in separate js file. – akeeseth Commented Nov 1, 2012 at 8:42

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1 Answer 1

Sorted by: Reset to default 5

Change your statement

self.currentUserId = ko.observable(HttpContext.Current.Session["UserID"]);

To If your application using webform and viewmodel is inline with aspx page

self.currentUserId = ko.observable('<%=HttpContext.Current.Session["UserID"]%>');

if MVC with razor view engine with inline viewmodel of view

self.currentUserId = ko.observable('@HttpContext.Current.Session["UserID"]');

and if your viewmodel is in external js file, then first store it in a js variable and use in that js

like, you can't use HttpContext.Current.Session["UserID"] in external js file.

<script type="text/javascript" src='<path_of_knochout.js>'></script>

<script type="text/javascript">
    var userId = '<%=HttpContext.Current.Session["UserID"] %>';
</script>

<script type="text/javascript" src='<your_view_model_js>'></script>

in <your_view_model_js> file use

self.currentUserId = ko.observable(userId);

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