public void addStudent(int no, string name, int classID) { try { if (dc.Student.Where(t => t.No == no).Count() == 0) { Student s = new Student() { No = no, Name = name }; dc.Student.InsertOnSubmit(s); } if (dc.Student_Class.Where(t => t.ClassID == classID && t.StudentNo == no).Count() == 0) { Student_Class sc = new Student_Class() { StudentNo = no, ClassID = classID }; dc.Student_Class.InsertOnSubmit(sc); } dc.SubmitChanges(); } catch (Exception e) { throw e; } }
partial void DeleteStudent_Class(Student_Class instance);
partial void UpdateStudent_Class(Student_Class instance);
partial void InsertStudent_Class(Student_Class instance);
private void detach_Student_Class(Student_Class entity) { this.SendPropertyChanging(); entity.ClassInfo = null; }
private void attach_Student_Class(Student_Class entity) { this.SendPropertyChanging(); entity.Student = this; }