Sending data by Json into controller in asp.net mvc 5

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Hi
I have 3 classes as Student ,Course and StudentCourses .
Class Student has below fields:
Id,Name,Family

Class course has below fields:
Id,CourseName

Class StudentCourses has below fields:
Id,StudentId,CourseId

In my page I want to choose a StudentNames from dropdown and course names from other Dropdown .user could add several course and each time the new record appear in my table in same page without refresh ,then when user click on submit all the records in table must store in class StudentCourses .I want do this with Json but I dont know how to write it's codes .Anybody has sample ?

Thanks

Posted 10-Jul-14 16:19pm

sorosh04

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sankarsan parida · Answer 1 · 2014-07-10T16:45:00

For that see the following code

Controllers ->
      public JsonResult GetStudents(int id)
       {
           var states = db.Students.Where(x => x.courseID == id).ToList();
           return Json(states, JsonRequestBehavior.AllowGet);
       }

Views -> Jquery

XML

$("#ddlCourse").change(function () {
      var url = "/Controls_/GetStudents";
      var courseID = $("#ddlCourse").val();
      $.post(url, { id: courseID }, function (data) {
          $("#ddlStudent").empty();
          var items = "<option>Select Student<option>";
          $.each(data, function (i, st) {
              items += "<option value=" + st.ID + ">" + st.StudentName + "</option>";
          });
          $("#ddlStudent").html(items);
      });
  });