private async Task Update(List <PortfolioItem> items, ChartRange range)
{
ProgressRing.IsActive = true;
PortfolioGrid.ItemsSource = null;
using (var iexCloudClient = IEXCloudService.GetClient())
{
foreach (var item in items)
{
// Needs to be inside the loop.
// The IEXSharp ExecutorREST helper changes the QueryStringBuilder and blocks reuse.
var queryStringBuilder = new IEXSharp.Helper.QueryStringBuilder();
queryStringBuilder.Add("chartCloseOnly", "true");
queryStringBuilder.Add("chartSimplify", "true");
var response = await iexCloudClient.StockPrices.HistoricalPriceAsync(item.Symbol, range, queryStringBuilder);
if (response.ErrorMessage != null)
{
Console.WriteLine(response.ErrorMessage);
}
else
{
item.HistoricalPrices = response.Data;
}
}
}
PortfolioGrid.ItemsSource = items;
await Task.Delay(1000); // Give the GridView some time to render the containers.
PortfolioGrid.RegisterImplicitAnimations();
ProgressRing.IsActive = false;
}
public override void Load(SettingsStorage settings)
{
PortfolioGrid.Load(settings.GetValue <SettingsStorage>("PortfolioGrid"));
}
public override void Save(SettingsStorage settings)
{
settings.SetValue("PortfolioGrid", PortfolioGrid.Save());
}
