private void AddNewSymbolExecute()
{
// Check if symbol already exists in TickDetailsMap
if (_provider.IsSymbolLoaded(NewSymbol))
{
// Select existing TickDetail
SelectedTickDetail = TickDetailsCollection.First(x => x.Security.Symbol == NewSymbol);
}
else
{
// Create new tick detail's object
MarketDataDetail tickDetail = new MarketDataDetail(new Security()
{
Symbol = NewSymbol
});
// Add Tick Detail object to Provider's maps
_provider.AddMarketDetail(tickDetail);
// Select new tick detail in DataGrid
SelectedTickDetail = tickDetail;
// Create a new subscription request for requesting market data
var subscriptionRequest = new SubscriptionRequest(tickDetail.Security, _provider, MarketDataType.Tick, SubscriptionType.Subscribe);
// Raise Event to notify listeners
EventSystem.Publish <SubscriptionRequest>(subscriptionRequest);
}
// Clear NewSymbol string
NewSymbol = string.Empty;
}
/// <summary>
/// Remove all symbols from scanner
/// </summary>
public void RemoveAllSymbols()
{
foreach (MarketDataDetail marketDataDetail in TickDetailsCollection.ToList())
{
// Create a new un-subscription request for requesting market data
var unsubscriptionRequest = new SubscriptionRequest(marketDataDetail.Security, _provider, MarketDataType.Tick, SubscriptionType.Unsubscribe);
// Raise Event to notify listeners
EventSystem.Publish <SubscriptionRequest>(unsubscriptionRequest);
_provider.RemoveMarketInformation(marketDataDetail.Security.Symbol);
}
}
