在编辑记录中获取下拉列表值

Question

我想从编辑记录中的数据库中获取DropDown值，但我没有找到任何解决方案，请给我一些建议。

修改 这是Controller actionResult

public ActionResult Edit(int? id){ 

        var editRecords = (from objDepartment in db.Departments
            join objStudent in db.Studentts on objDepartment.Department_id equals objStudent.Dept_id
                where objStudent.Student_id == id
                 select new Student_Department_Model
                  {
                  Student_id = objStudent.Student_id,
                  Stu_Name = objStudent.Stu_Name,
                  Stu_Age = objStudent.Stu_Age,
                  University_Dropdown = objStudent.University_Dropdown,
                  CourseName = objStudent.Course_Name,
                  Department_id = objDepartment.Department_id,
                  Department_Name = objDepartment.Department_Name,
                  Department_Fee =objDepartment.Department_Fee
                           }).ToList();

        return View(editRecords);

}

修改视图

@model List<CompleteCrudOperations.Models.Student_Department_Model>

@{
ViewBag.Title = "Edit";
 }

       <label>Courses</label>
       <select name="CourseName" class="form-control">
      <option selected disabled>Select Your's Courses</option>
       @foreach (var allCourses in Model)
        {
         <option>@allCourses.CourseName</option>
        }