public DataEditWindow(Instrument instrument)
{
InitializeComponent();
DataContext = this;
Data = new ObservableCollection<OHLCBar>();
//grab and update the instrument
using (var context = new MyDBContext())
{
context.Instruments.Attach(instrument);
context.Entry(instrument).Reload();
TheInstrument = instrument;
}
StartTime = new DateTime(1950, 1, 1, 0, 0, 0, 0);
EndTime = new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 0, 0, 0, 0);
if (!TheInstrument.ID.HasValue) return;
//grab the data info
using (var localStorage = new LocalStorage())
{
var storageInfo = localStorage.GetStorageInfo(TheInstrument.ID.Value);
if (storageInfo.Count == 0) //if it doesn't have any data, we just exit
{
MessageBox.Show("This instrument has no data.");
Hide();
}
else
{
foreach (StoredDataInfo s in storageInfo) //fill the resolution box
{
ResolutionComboBox.Items.Add(s.Frequency);
}
}
}
}
//check the latest date we have available in local storage, then request historical data from that date to the current time
void UpdateHistoricalDataBtn_ItemClick(object sender, RoutedEventArgs routedEventArgs)
{
var frequency = (BarSize)((MenuItem)sender).Tag;
List<Instrument> selectedInstruments = InstrumentsGrid.SelectedItems.Cast<Instrument>().ToList();
int requestCount = 0;
using (var localStorage = new LocalStorage())
{
foreach (Instrument i in selectedInstruments)
{
if (!i.ID.HasValue) continue;
var storageInfo = localStorage.GetStorageInfo(i.ID.Value);
if (storageInfo.Any(x => x.Frequency == frequency))
{
var relevantStorageInfo = storageInfo.First(x => x.Frequency == frequency);
_client.RequestHistoricalData(new HistoricalDataRequest(
i,
frequency,
relevantStorageInfo.LatestDate + frequency.ToTimeSpan(),
DateTime.Now,
true,
false,
true));
requestCount++;
}
}
}
if (_progressBar.Value >= _progressBar.Maximum)
{
_progressBar.Maximum = requestCount;
_progressBar.Value = 0;
}
else
{
_progressBar.Maximum += requestCount;
}
}