public ExtracurricularOfStudentViewModel(Extracurricular extracurricular) : this()
 {
     if (extracurricular != null)
     {
         Id        = extracurricular.Id;
         StudentId = extracurricular.StudentId;
         ExtracurricularActivity = new ExtracurricularActivityViewModel(extracurricular.ExtracurricularActivity);
     }
 }
 public void GetExtracurricularFromModel(Extracurricular extracurricular)
 {
     extracurricular.StudentId = StudentId;
     extracurricular.ExtracurricularActivityId = ExtracurricularActivityId;
 }