//OK
#region WindowActions
private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
SearchStockWindow.instance = null;
}
public static SearchStockWindow ReturnInstance(List<Stock> Stocks, MainGUI main)
{
if (SearchStockWindow.instance == null)
SearchStockWindow.instance = new SearchStockWindow(Stocks, main);
return SearchStockWindow.instance;
}