public BalanceViewModel()
{
SingleCurrentAccount currentAccount = SingleCurrentAccount.GetInstance();
CurrentAccount = currentAccount.Account;
UnitOfWork = new UnitOfWork();
Histories = new List <History>();
GetHistories();
CreateCommand.CheckRepeatHistories();
Balance = GetBalance(Histories);
UpdateViewCommand = new UpdateViewCommand(MainWindow.MainView);
RefreshHistoryCollectionView();
DeleteCommand = new DeleteCommand(this);
LinkToEditCommand = new LinkToEditCommand();
}
