Ajax到WCF，无法将Ajax加载到对象中

Question

I want to send some data back form my JavaScript to WCF. This object I send back needs to get loaded in the Foo class. If I debug the code I can see the function (Sting) gets called. But if i check whats in the the object I got returned, this object is null.

This indicates the data can't be stored in in the Object of WCF. The WCF works find when I send data to the JavaScript with Ajax. FYI I use .NET 3.5

this is how I try to receive the data: WCF:

namespace TPlatform
{
    [ServiceContract(Namespace = "")]
    [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
    public class DataService
    {
        [OperationContract]
        public void Sting(Foo postData)
        {
            var x = 1; //Breakpoint, postData is null?
        }
    }

    [DataContract]
    public class Foo
    {
        [DataMember]
        public string Bar;
    }
}

JavaScript:

var fooObject = { "Bar": "test" };
function sendDataToWcf(object) {
    $.ajax({
        type: "POST",
        url: "DataService.svc/Sting",
        data: JSON.stringify(fooObject),
        processData: false,
        contentType: "application/json",
        dataType: "json",
        success: suckcess,
        error: showError
    });
}

What am I doing wrong? How can I read the the data into my class?

Answer 1

Try this

        $.ajax({
            type: 'POST',
            url: url,
            //dataType: 'json',
            contentType: "application/json",
            data: JSON.stringify({ postData: fooObject}),
            success: function (response) {
                successCallback(response);
            },
            error: function (xhr, status, error) {
                handleError(xhr, status, error);
            }
        });

Update: Change:

var fooObject = { "Bar": "test" };

too

var fooObject = { Bar: "test" };

and dont send the datatype.