public XExamVM(XExam exam)
{
_exam = exam;
_paramsObsCollection = new ObservableCollection<XParamVM>();
foreach (var v in this.Exam.ParamsCollection)
_paramsObsCollection.Add(new XParamVM(v));
_paramCVS = new CollectionViewSource();
_paramCVS.Source = _paramsObsCollection;
_examType = new XExamTypeVM(Exam.ExamType);
}
internal void RemoveExam(XExam examToRemove)
{
DbContext.Parameters.RemoveRange(examToRemove.ParamsCollection);
DbContext.Exams.Remove(examToRemove);
}