public void LoadData(ProgressIndicator p = null)
{
System.Diagnostics.Debug.WriteLine("Now start to load rss data for symbol " + Symbol);
List <string> sym = new List <string>()
{
Symbol
};
WebClient client = new WebClient();
client.DownloadStringCompleted += (obj, e) =>
{
try
{
RssCollection = YahooAPI.ParseRssXml(e.Result);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
System.Diagnostics.Debug.WriteLine(ex.Source);
System.Diagnostics.Debug.WriteLine(ex.StackTrace);
}
if (p != null)
{
p.IsVisible = false;
}
};
client.DownloadStringAsync(YahooAPI.GetRssXmlUrl(sym));
}
private void SearchButton_onClick(object sender, RoutedEventArgs e)
{
if (App.Timer != null)
{
App.Timer.Stop();
}
List <string> syms = App.StrToSymbols(KeywordStr.Text);
if (syms.Count == 0)
{
string message = "Please provide symbol(s) to search, separated by a comma.\nE.g., QQQ,SPY";
string caption = "Empty symbol to search";
MessageBoxButton buttons = MessageBoxButton.OK;
MessageBoxResult result = MessageBox.Show(message, caption, buttons);
return;
}
progressBar.IsVisible = true;
WebClient client = new WebClient();
client.DownloadStringCompleted += (obj, args) =>
{
try
{
YahooAPI.UpdateQuotes(args.Result);
PortfolioViewModel currentView = (PortfolioViewModel)PortfolioPivot.SelectedItem;
Portfolio currentPortfolio = App.GetPortfolio(currentView.Title);
foreach (string s in syms)
{
Quote quote = App.GetQuote(s);
if (quote == null)
{
System.Diagnostics.Debug.WriteLine("Symbol " + s + " was not found in db.");
continue;
}
if (currentPortfolio.AddQuote(quote))
{
currentView.AddStockToView(quote);
}
}
}
catch (Exception ex)
{
// can be caused by network issue
System.Diagnostics.Debug.WriteLine(ex.Message);
System.Diagnostics.Debug.WriteLine(ex.Source);
System.Diagnostics.Debug.WriteLine(ex.StackTrace);
}
if (App.Timer != null)
{
App.Timer.Start();
}
progressBar.IsVisible = false;
};
client.DownloadStringAsync(YahooAPI.GetQuotesXmlUrl(syms));
}
// this function is used to trigger new features
private void PickTopSymbolsFromServer(object sender, EventArgs e)
{
if (App.Timer != null)
{
App.Timer.Stop();
}
progressBar.IsVisible = true;
WebClient client = new WebClient();
client.DownloadStringCompleted += (obj, args) =>
{
progressBar.IsVisible = false;
KeywordStr.Text = args.Result;
SearchButton_onClick(obj, null);
KeywordStr.Text = "";
};
client.DownloadStringAsync(YahooAPI.GetStockAppTopPickUri());
}
private void RefreshView(int panoramaIndex)
{
if (panoramaIndex < 2)
{
WebClient client = new WebClient();
client.DownloadStringCompleted += (obj, args) =>
{
YahooAPI.UpdateQuotes(args.Result.ToString());
if (CurrentQuote.Change > 0)
{
Change.Foreground = new SolidColorBrush(Colors.Green);
}
else if (CurrentQuote.Change < 0)
{
Change.Foreground = new SolidColorBrush(Colors.Red);
}
};
client.DownloadStringAsync(YahooAPI.GetQuotesXmlUrl(new List <string>()
{
CurrentSymbol
}));
}
if (panoramaIndex == 2)
{
// graph page
UpdateGraph();
}
else if (panoramaIndex == 3)
{
// rss news page
ProgressBar.IsIndeterminate = true;
ProgressBar.IsVisible = true;
RssView.LoadData(ProgressBar);
}
else if (panoramaIndex == 4)
{
// tweets page
ProgressBar.IsIndeterminate = true;
ProgressBar.IsVisible = true;
TweetView.Symbol = CurrentSymbol;
TweetView.LoadData(ProgressBar);
}
}
private void CurrentList_RefreshView()
{
if (App.Timer != null)
{
App.Timer.Stop();
}
PortfolioViewModel currentView = (PortfolioViewModel)PortfolioPivot.SelectedItem;
Portfolio currentPortfolio = App.GetPortfolio(currentView.Title);
List <string> currentStockList = currentPortfolio.StockList;
// do not refresh if the portfolio has nothing
if (currentStockList.Count == 0)
{
return;
}
WebClient client = new WebClient();
client.DownloadStringCompleted += (obj, args) =>
{
try
{
YahooAPI.UpdateQuotes(args.Result.ToString());
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
System.Diagnostics.Debug.WriteLine(ex.Source);
System.Diagnostics.Debug.WriteLine(ex.StackTrace);
}
if (App.Timer != null)
{
App.Timer.Start();
}
};
client.DownloadStringAsync(YahooAPI.GetQuotesXmlUrl(currentStockList));
}
private void UpdateGraph()
{
List <string> syms = App.StrToSymbols(Graph_CompareWith.Text);
Uri graphUri = YahooAPI.GetQuoteGraphUrl(CurrentSymbol, GraphIndicator_Prompt.Text, syms);
WebClient client = new WebClient();
client.OpenReadCompleted += async(obj, args) =>
{
Stream stream = new MemoryStream();
await args.Result.CopyToAsync(stream);
BitmapImage b = new BitmapImage();
b.SetSource(stream);
this.GraphHolder.Source = b;
ProgressBar.IsVisible = false;
GraphHolder_Prompt.Visibility = Visibility.Collapsed;
};
client.DownloadProgressChanged += new DownloadProgressChangedEventHandler(GraphDownloadProgressChanged);
client.OpenReadAsync(graphUri);
ProgressBar.IsVisible = true;
progressBar.IsIndeterminate = false;
progressBar.Value = 0;
}
