public void DelExams() { Exams exam = new Exams(); exam = CurrentExam; if (exam != null) { exam.Delete(); if (exam.CurrentValidation.Errors.Count > 0) { messageBoxText = exam.CurrentValidation.Errors[0]; MessageBox.Show(messageBoxText, caption, button, icon); } DateEVM = DateTime.Now; MarkVM = "0"; GetExams(); } else { messageBoxText = "Debe seleccionar alumn@/exámen"; MessageBox.Show(messageBoxText, caption, button, icon); } }