public RateHistory()
{
this.InitializeComponent();
this.NavigationCacheMode = Windows.UI.Xaml.Navigation.NavigationCacheMode.Enabled;
ViewModel = DataViewModel.getInstance();
webHandler = new WebHandler();
FromDatePicker.MinYear = new DateTime(2002, 01, 01);
FromDatePicker.MaxYear = DateTime.Today;
ToDatePicker.MaxYear = DateTime.Today;
if (ViewModel.FromRateHistoryDate != null)
{
FromDatePicker.SelectedDate = ViewModel.FromRateHistoryDate;
ToDatePicker.IsEnabled = true;
if (ViewModel.ToRateHistoryDate != null)
{
ToDatePicker.SelectedDate = ViewModel.ToRateHistoryDate;
DownloadDataButton.IsEnabled = true;
if (ViewModel.HistoryOfCurrency != null)
{
loadChartData();
}
}
}
lineChart.LegendItems.Clear();
}
public MainPage()
{
this.InitializeComponent();
this.NavigationCacheMode = Windows.UI.Xaml.Navigation.NavigationCacheMode.Enabled;
ViewModel = DataViewModel.getInstance();
webHandler = new WebHandler();
if (ViewModel.Dates == null)
{
DownloadDates();
}
else
{
if (DatesListView != null)
{
DatesListView.SelectedIndex = ViewModel.CurrentDateSelection;
}
}
}
public WebHandler()
{
this.httpClient = new HttpClient();;
ViewModel = DataViewModel.getInstance();
}