Convert Javascript object to C# object

Question

I'm setting up facebook canvas payments and it requires a callback when an order is successful. I have the code below and I'm using ajax to pass the callback data to my method so I can do something with it. I just don't know what to set as the parameter for the method so that I can pass the data correctly.

FB.ui(obj, function (data) {
                $.ajax({
                    type: "GET",
                    dataType: "json",
                    contentType: "application/json",
                    url: "/Home/finishOrder",
                    data: myjsobject,
                    async: true
                });
            });

public class orderDetails
    {
        public string payment_id { get; set; }
        public decimal amount { get; set; }
        public string currency { get; set; }
        public int quantity { get; set; }
        public string request_id { get; set; }
        public string status { get; set; }
        public string signed_request { get; set; }
    }

    public void finishOrder(orderDetails orderDetails)
    {
        SendEmail.sendEmail(orderDetails.amount.ToString());
    }

If this is MVC or WebAPI, the parameter should be orderDetails class in C#. The framework will automatically bind the same named properties from your JSON to your C# object. Also, if you specify data, dataType and contentType in your Ajax call then you don't need to set the queryatring manually and jQuery will automatically serialize your JavaScript object to json — Steve Lillis
– Steve Lillis, Commented Nov 27, 2014 at 6:51
This is MVC and I changed the parameter to orderDetails and it now returns null and I'm using the same properties as the facebook documentation @SteveLillis — DarthVegan
– DarthVegan, Commented Nov 27, 2014 at 6:55
Then set it to orderDetails again, name it myOrderDetails (model binding might be getting confused by the word data if its used elsewhere in the framework) and update your Ajax to specify data and content type instead of querystring. — Steve Lillis
– Steve Lillis, Commented Nov 27, 2014 at 7:01
@SteveLillis I updated my code above but I don't think I'm doing it correctly because everytime I change something, it still gets passed as null — DarthVegan
– DarthVegan, Commented Nov 27, 2014 at 7:13
remove "order=" from your url and add "data: thejsobjectthatrepresentsorder" to the ajax call — Steve Lillis
– Steve Lillis, Commented Nov 27, 2014 at 7:17

Steve Lillis · Accepted Answer · 2014-11-27 07:22:13Z

1

Close, but try this:

FB.ui(obj, function (data) {
            $.ajax({
                type: "GET",
                dataType: "json",
                Content-type: "application/json",
                url: "/Home/finishOrder",
                data: myjsobject,
                success: function(data) { alert('success'); }
            });
        });

public class orderDetails
{
    public string payment_id { get; set; }
    public decimal amount { get; set; }
    public string currency { get; set; }
    public int quantity { get; set; }
    public string request_id { get; set; }
    public string status { get; set; }
    public string signed_request { get; set; }
}

public ActionResult finishOrder(orderDetails orderDetails)
{
    SendEmail.sendEmail(orderDetails.amount.ToString());
    return Json(new { Result = "e-mail sent" }, JsonBehavior.AllowGet);
}

Note: the JS object must have the same property names as the C# one.

answered Nov 27, 2014 at 7:22

Steve Lillis

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5 Comments

DarthVegan Over a year ago

I tried this but it isn't even calling the method now. I also don't understand why you have named the line data: myjsobject. Shouldn't that be changed to orderDetails? @SteveLillis

Steve Lillis Over a year ago

Sorry, it was to indicate it should be the JavaScript object you want to send to server. Probably the data from FB?

DarthVegan Over a year ago

I'm not sending any data to the server. It is just a callback function to let me know that the payment was successful.

Steve Lillis Over a year ago

Then where are you trying to get the amount from?

DarthVegan Over a year ago

I made some changes and I figured it out

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