public OnEditarAlunoCMD(AlunoViewModel paramVM)
 {
     alunoVM = paramVM;
 }
 public OnDeleteAlunoCMD(AlunoViewModel paramVM)
 {
     alunoVM = paramVM;
 }
 public OnAdicionarAlunoCMD(AlunoViewModel paramVM)
 {
     alunoVM = paramVM;
 }