使用MVC 4 API控制器发布JSON

I have this code:

我有这段代码:

   $.ajax({


        type: "POST",
        url: "/api/slide",
        cache: false,
        contentType: "application/json; charset=utf-8",
        data: '{"Title":"fghfdhgfdgfd"}',
        dataType: "json",
   $.ajax({