internal override void GetDataBase()
        {


            var result = OperationOilfield.Select("select * from Oilfield");

            foreach (var item in result)
            {
                ViewModelOilfield viewModelOilfield = new ViewModelOilfield();
                viewModelOilfield.TheOilfield = item;
                ObservableCollectionOilfield.Add(viewModelOilfield);
            }

            TableOilfieldObservable = ObservableCollectionOilfield;
            RaisePropertyChanged("Oilfield");
        }
 internal override async Task DelTheObject(dynamic item)  {
     ViewModelOilfield viewModelOilfield_ = new ViewModelOilfield();
     await OperationOilfield.Delete(item);
     viewModelOilfield_.TheOilfield = item;
     ObservableCollectionOilfield.Clear(); Refresh();
 }
 internal override async Task AddTheObject(dynamic item)  {
     ViewModelOilfield viewModelOilfield_ = new ViewModelOilfield();
     await OperationOilfield.Insert(new Oilfield(0, Name));
     viewModelOilfield_.TheOilfield = item;
     ObservableCollectionOilfield.Add(viewModelOilfield_);
 }