Esempio n. 1
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 /// <summary>
 /// 根据学号查找学生所能选的课程;
 /// 该学生已选课程不能再选,不予列出;
 /// </summary>
 /// <param name="studentNo">学号</param>
 /// <returns>课程信息列表</returns>
 public static List <CourseInfo> FindByStudentNo(string studentNo)
 {
     using (var eduBase = new EduBase())
     {
         var courses =
             from c in eduBase.Course
             where
             !(from sc in eduBase.SelectedCourse
               where sc.StudentNo == studentNo
               select sc.CourseNo)
             .Contains(c.No)
             select new CourseInfo {
             No = c.No, Name = c.Name, Credit = c.Credit
         };
         return(courses.ToList());
     }
 }
 /// <summary>
 /// 构造函数;
 /// </summary>
 public SelectedCourseRepository()
 {
     this.EduBase = new EduBase();
 }