public Response<HoldingsResult> DownloadHoldings(string portfolioID, int viewIndex)
{
if (this.IsLoggedIn)
{
HoldingsDownload dl = new HoldingsDownload();
dl.Settings.Account = this;
dl.Settings.PortfolioID = portfolioID;
return dl.Download();
}
else { throw new NotSupportedException("The user is not logged in."); }
}
