/// <summary>
/// Delete symbol from scanner
/// </summary>
private void DeleteSymbolCommandExecute(object param)
{
if (WPFMessageBox.Show(_scannerWindow,
string.Format("Delete symbol {0}?", (param as MarketDataDetail).Security.Symbol),
string.Format("{0} Scanner", _provider.ProviderName),
MessageBoxButton.YesNo, MessageBoxImage.Question) == MessageBoxResult.Yes)
{
var tickDetail = (MarketDataDetail)param;
// Remove from Providers collection
_provider.RemoveMarketInformation(tickDetail.Security.Symbol);
// Create a new un-subscription request for requesting market data
var unsubscriptionRequest = new SubscriptionRequest(tickDetail.Security, _provider, MarketDataType.Tick, SubscriptionType.Unsubscribe);
// Raise Event to notify listeners
EventSystem.Publish <SubscriptionRequest>(unsubscriptionRequest);
// Try to find and to close LOB for removed tick detail
string title = string.Format("LOB - {0} ({1})", tickDetail.Security.Symbol, _provider.ProviderName);
LimitOrderBookWindow lobWindow = (LimitOrderBookWindow)FindWindowByTitle(title);
if (lobWindow != null)
{
lobWindow.DataContext = null;
lobWindow.Close();
}
}
}
/// <summary>
/// Show LOB for current TickDetail
/// </summary>
/// <param name="param">current TickDetail</param>
private void ShowLimitOrderBookExecute(object param)
{
SelectedTickDetail = (MarketDataDetail)param;
string title = string.Format("LOB - {0} ({1})", SelectedTickDetail.Security.Symbol, Provider.ProviderName);
// if LOB window is already shown, just activate it
LimitOrderBookWindow lobWindow = (LimitOrderBookWindow)FindWindowByTitle(title);
if (lobWindow != null)
{
lobWindow.Activate();
return;
}
// if LOB window is not already shown, create the new one and show it
lobWindow = new LimitOrderBookWindow();
lobWindow.Title = title;
lobWindow.DataContext = new LimitOrderBookViewModel(SelectedTickDetail);
lobWindow.Show();
}
