can javascript get value from MVC?

Question

i am using asp.net mvc 3. in one my of page. i need to get a list of string from a list object. so i do this:

@{
    var orderIds  = from s in Model.Orders
                    select s.id;

}

and from one of my ajax call, i will need "orderIds "

$("#renderBtn").click(function () {
            var inputData = {
                'orderIds':  need to get the order ids here 
            }; 

            $.ajax({
                url: '/Order/ExtraData',
                data: inputData,
                type: 'POST',
                contentType: 'application/json; charset=utf-8',
                dataType: 'json',
                success: function (result) {
                    ....
                },
                error: function () {
                    ...
                }
            });
        });

any idea how can i get orderIds and use in javascripts? Thanks

the controller needs to give this information to the view (which is the jquery code). so create a route /Order/ExtraData for this controller. (i don't know asp.net, so i can't give you more details) — dan-lee
– dan-lee, Commented Jun 17, 2012 at 1:30
i construct a hidden value, the view populate value and store in hidden filed.. then javascript read from it.. solve my problem :) — jojo
– jojo, Commented Jun 17, 2012 at 1:34

Erik Philips · Accepted Answer · 2012-06-17 01:33:46Z

2

Your code aboce defining orderIds is a server-side variable; what you need us a client-side variable. You'll need to define that variable at the creation of the view, in a script block near the bottom of the page.

@{ 
  var orderIds = string.Join(",", Model.Orders.Select(s => s.id).ToArray());
}
<script>
       var orderIds  = [@orderIds]
</script>

Caveat: The code may not be perfect, and may not compile, but that should give you an idea how to proceed.

edited Jun 17, 2012 at 1:33

Erik Philips

54.8k11 gold badges133 silver badges158 bronze badges

answered Jun 17, 2012 at 0:56

saluce

13.4k3 gold badges52 silver badges68 bronze badges

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

Comments

lucuma · Accepted Answer · 2012-06-17 03:32:43Z

1

If you aren't (or don't want to) using inline javascript and keep it all separated you could do something like this:

@{ 
  var orderIds = string.Join(",", Model.Orders.Select(s => s.id).ToArray());
}

<input type="hidden" id="orderIds" value="@orderIds" />

And then in your javascript/jQuery:

orderIds = $('#orderIds').val();

answered Jun 17, 2012 at 3:32

lucuma

18.3k4 gold badges68 silver badges95 bronze badges

Collectives™ on Stack Overflow

can javascript get value from MVC?

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related