public ResponseMessageWrap <int> DeleteById(long id)
 {
     return(new ResponseMessageWrap <int>
     {
         Body = CourseGroupUserService.DeleteById(id)
     });
 }
 public ResponseMessageWrap <int> Update([FromBody] CourseGroupUser courseGroupUser)
 {
     return(new ResponseMessageWrap <int>
     {
         Body = CourseGroupUserService.Update(courseGroupUser)
     });
 }
 public CourseGroupUserController(CourseGroupUserService courseGroupUserService, ICourseGroupUserRepository courseGroupUserRepository)
 {
     CourseGroupUserService    = courseGroupUserService;
     CourseGroupUserRepository = courseGroupUserRepository;
 }