How to return multiple values using json?

Question

This is my script:

 

 

function UpdateFields() {

var StudentId = parseInt($('#@Html.IdFor(m => m.StudentId)').val());

var  ProjectId= parseInt($('#@Html.IdFor(m => m.ProjectId)').val());

var Par = {

'StudentId ': StudentId ,

'ProjectId': ProjectId

};

$.ajax({

url: '@Url.Action("New")',

data: Par,

type: 'GET',

success: function (data) {

$('#@Html.IdFor(m => m.StudentId )').val(data);

$('#@Html.IdFor(m => m.ProjectId)').val(data);

},

error: function (request, status, error) {alert('error');

});

 

 This is my action in my controller

 

public ActionResult New(StudentNewViewModel model)

{

model.LoadFromFields(SCPProvider, model.StudentId , model.ProjectId);

return Json(model.StudentId , JsonRequestBehavior.AllowGet);

}

 

My question is how can i return both  StudentId and ProjectId  with Json? so that these two fields  can be updated dynamically when changes on form are made.