gistfile1.js

var obj = {};
obj.TestString = "Test";
obj.TestInt = 1;
obj.TestBool = true;
$.ajax({
    type: 'POST',
    url: '@Url.Action("Test", "Test")', // replace this with the name of the controller and model
    data: JSON.stringify(obj),
    dataType: "html",
    success: function (html) {
      alert('success');
      $('#div').html(html);
    }
 });