public MainWindowViewModel(IViewModelFactory factory)
{
accountsWindowViewModel = factory.CreateAccountsWindowViewModel();
expensesWindowViewModel = factory.CreateExpensesWindowViewModel();
billsWindowViewModel = factory.CreateBillsWindowViewModel();
showAccountsCommand = new DelegateCommand(() => Current = accountsWindowViewModel);
showExpensesCommand = new DelegateCommand(() => Current = expensesWindowViewModel);
showBillsCommand = new DelegateCommand(() => Current = billsWindowViewModel);
current = billsWindowViewModel;
}
