private void Resume()
{
if (SelectedDate == null)
{
return;
}
CurrenciesGrid.DataContext = NbpApi.GetAllCurrencyExchangeRatesForDay((DateTime)SelectedDate);
}
private void DatesListView_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
if (SelectedDate == null)
{
return;
}
CurrenciesGrid.DataContext = NbpApi.GetAllCurrencyExchangeRatesForDay((DateTime)SelectedDate);
localSettings.Values["Date"] = (DateTimeOffset)SelectedDate;
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
if (e.Parameter != null && (string)e.Parameter == "resuming")
{
CurrenciesGrid.DataContext =
NbpApi.GetAllCurrencyExchangeRatesForDay(((DateTimeOffset)localSettings.Values["date"]).DateTime);
}
localSettings.Values["page"] = "main";
}
public MainPage()
{
InitializeComponent();
DatesListView.DataContext = GetDaysBetweenTwoDates(DateTime.Today.AddDays(-90), DateTime.Today);
CurrenciesGrid.DataContext = NbpApi.GetAllCurrencyExchangeRatesForDay(DateTime.Today);
localSettings = ApplicationData.Current.LocalSettings;
localSettings.Values["page"] = "main";
}
private async void UpdateGraph()
{
if (Currency == null || Currency.code == "")
{
return;
}
if (DateFrom.Date.Date < DateTime.Parse("23-09-02"))
{
errorTextBox.Text = "Error: invalid date!";
return;
}
Windows.Storage.ApplicationDataCompositeValue composite =
new Windows.Storage.ApplicationDataCompositeValue
{
["currency"] = Currency.currency,
["code"] = Currency.code,
["from"] = DateFrom.Date,
["to"] = DateTo.Date
};
localSettings.Values["currencyObj"] = composite;
errorTextBox.Text = "";
var from = DateFrom.Date.Date;
var to = DateTo.Date.Date;
var tempPairs = new List <KeyValuePair <DateTime, double> >();
var ab = new List <Task <List <Exchange> > >();
while (to - from > TimeSpan.FromDays(356))
{
var mid = to.AddDays(-356);
ab.Add(NbpApi.GetExchangesForSingleCurrencyInRange(mid, to, Currency.code));
to = mid;
}
ab.Add(NbpApi.GetExchangesForSingleCurrencyInRange(from, to, Currency.code));
await Task.Run(async() =>
{
tempPairs.AddRange(from l in await Task.WhenAll(ab) from ex in l select new KeyValuePair <DateTime, double>(ex.EffectiveDate, ex.mid));
});
LineChart.DataContext = tempPairs;
}