/// <summary>
/// Handles closing event if invoked for certain scanner window
/// </summary>
void scannerWindow_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
MarketScannerWindow scannerWindow = (MarketScannerWindow)sender;
if (WPFMessageBox.Show(scannerWindow, string.Format("Close scanner window {0}?", scannerWindow.Title), "Market Data Scanner",
MessageBoxButton.YesNo, MessageBoxImage.Question) != MessageBoxResult.Yes)
{
e.Cancel = true;
}
else
{
// If scanner window is closing...
// close all LOB windows related to current scanner window
foreach (Window window in Application.Current.Windows)
{
if (window is LimitOrderBookWindow && window.Title.Contains(scannerWindow.Title))
{
window.DataContext = null;
window.Close();
}
}
// remove that MarketScannerWindowViewModel from collection
MarketScannerWindowViewModel scannerViewModel = ScannerWindowViewModels.First <MarketScannerWindowViewModel>(x => x.Provider.ProviderName == scannerWindow.Title);
if (scannerViewModel != null)
{
scannerViewModel.RemoveAllSymbols();
ScannerWindowViewModels.Remove(scannerViewModel);
}
// activate MainWindow
MainWindow.Activate();
}
}
/// <summary>
/// Create market scanner for selected market data provider
/// </summary>
private void CreateScannerWindowExecute()
{
// Try to find scanner window if already created for selected provider
MarketScannerWindow scannerWindow = (MarketScannerWindow)FindWindowByTitle(SelectedMarketDataProvider.ProviderName);
// if scanner is already created, just activate it, otherwise create new scanner window for slected data provider
if (scannerWindow != null)
{
scannerWindow.WindowState = WindowState.Normal;
scannerWindow.Activate();
}
else
{
scannerWindow = new MarketScannerWindow();
MarketScannerWindowViewModel scannerWindowViewModel = new MarketScannerWindowViewModel(scannerWindow, SelectedMarketDataProvider, MarketDataProviders);
// Add scanner window VeiwModel in collection for displaying on Market Scanner Dashboard
ScannerWindowViewModels.Add(scannerWindowViewModel);
scannerWindow.DataContext = scannerWindowViewModel;
scannerWindow.Title = SelectedMarketDataProvider.ProviderName;
scannerWindow.Closing += scannerWindow_Closing;
scannerWindow.Show();
}
// Detach DataContext and close 'New Market Scanner' window
_newMarketScannerWindow.DataContext = null;
_newMarketScannerWindow.Close();
}