private async void OnElapsed(object state)
{
try
{
var context = (SynchronizationContext)state;
Dictionary <string, Task <Stock> > symbolPriceTaskMapping = new Dictionary <string, Task <Stock> >();
foreach (var stock in WatchList)
{
// symbolPriceTaskMapping[stock.Symbol] = stockService.GetLivePriceAsync(stock.Symbol);
}
await Task.WhenAll(symbolPriceTaskMapping.Select(x => x.Value));
SynchronizationContext.SetSynchronizationContext(context);
WatchList = new BindingList <LiveStockData>(
WatchList.Select(
x =>
{
if (symbolPriceTaskMapping.ContainsKey(x.Symbol))
{
x.Price = new Random().NextDouble();
// x.Price = symbolPriceTaskMapping[x.Symbol].Result.Price;
x.IsPositiveChange = x.Price > x.PreviousClose;
x.PercentageChange = Math.Round(((x.Price - x.PreviousClose) * 100 / x.PreviousClose), 2).ToString() + "%";
}
return(x);
})
.ToList());
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
}
