How to send js variables to mvc controller

Question

I`m new to client-server programming concepts. What I need, to send four js vars to my MVC 3 controller action.

    $(document).ready(function() {
        va         


        

Answer 1

Try changing the name of the object passed to the controller:

$.ajax({
    url: '/dashboard/createcover',
    type: 'POST',
    data: {coordinates : JSON.stringify(myData)}, //change here
    contentType: 'application/json; charset=utf-8',
    success: function (data) {
        alert(data.success);
    },
    error: function () {
        alert("error");
    },
    async: false
});

Please note that this will post the values as a JSON object. You need to modify your controller like so:

public ActionResult CreateCover(string jsonCoordinates) {
    ImageCoordinates coordinates = JsonConvert.DeserializeObject(jsonCoordinates);

    ViewData.Model = coordinates;
    return View();
}

You also need to add a reference to Newtonsoft.Json.