XmlReaderSettings settings = new XmlReaderSettings();
                  settings.IgnoreWhitespace = true;
                  settings.IgnoreComments = true;
       
                  string productsFile = Path.Combine(Request.PhysicalApplicationPath, "http://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20yahoo.finance.historicaldata%20where%20symbol%20=%20%22TIBX%22%20and%20startDate%20=%20%222013-01-01%22%20and%20endDate%20=%20%222014-01-01%22&format=xml&diagnostics=true&env=store://datatables.org/alltableswithkeys");