partial void DeleteteacherCourse(teacherCourse instance);
partial void UpdateteacherCourse(teacherCourse instance);
private void detach_teacherCourses(teacherCourse entity) { this.SendPropertyChanging(); entity.teacher = null; }
partial void InsertteacherCourse(teacherCourse instance);
private void attach_teacherCourses(teacherCourse entity) { this.SendPropertyChanging(); entity.teacher = this; }