public AddThreatVM()
 {
     db          = new ModelThreatContext();
     ModelThreat = ModelThreatVM.GetModel();
 }
 public ModelThreatVM(DataGrid dataGrid)
 {
     db = new ModelThreatContext();
     DataTableThreat = dataGrid;
 }
 public CreateModelVM()
 {
     db = new ModelThreatContext();
 }
 public ShowModelVM()
 {
     db = new ModelThreatContext();
 }