public GroupViewModel(AccountItemDataLodingHandler loadingDataHandler)
 {
     this.GroupItems = new ObservableCollection<GroupByCreateTimeAccountItemViewModel>();
     this.viewModeInfo = new ViewModeConfig();
     this.isDataLoaded = false;
     this.viewModeInfo.PropertyChanged += new PropertyChangedEventHandler(this.ViewModeInfo_PropertyChanged);
     this.LoadingDataHandler = loadingDataHandler;
 }
 public IncomeViewModel(AccountItemDataLodingHandler dataLodingHandler) : base(dataLodingHandler)
 {
     base.AccountItemType = ItemType.Income;
 }
 public ExpensesViewModel(AccountItemDataLodingHandler dataLodingHandler) : base(dataLodingHandler)
 {
     base.AccountItemType = ItemType.Expense;
 }