public static List <HistoricalStock> DowloadData(string ticker, int startDate, int endDate)
{
List <HistoricalStock> retval = new List <HistoricalStock>();
using (WebClient web = new WebClient())
{
string row = web.DownloadString(string.Format("http://ichart.finance.yahoo.com/table.csv?s={0}&a=00&b=01&c={1}&d=00&e=01&f={2}&g=w&ignore=.csv", ticker, startDate, endDate));
string[] rows = row.Split(new string[] { "\r\n", "\n" }, StringSplitOptions.None);
for (int i = 1; i < rows.Length - 1; i++)
{
string[] cols = rows[i].Split(',');
//cols[1] = cols[1].Replace(".", ",");
//cols[2] = cols[2].Replace(".", ",");
//cols[3] = cols[3].Replace(".", ",");
cols[4] = cols[4].Replace(".", ",");
//cols[5] = cols[5].Replace(".", ",");
//cols[6] = cols[6].Replace(".", ",");
HistoricalStock hs = new HistoricalStock();
hs.Date = Convert.ToDateTime(cols[0]);
//hs.Open = Convert.ToDouble(cols[1]);
//hs.High = Convert.ToDouble(cols[2]);
//hs.Low = Convert.ToDouble(cols[3]);
hs.Close = Convert.ToDouble(cols[4]);
//hs.Volume = Convert.ToDouble(cols[5]);
//hs.AdjClose = Convert.ToDouble(cols[6]);
retval.Add(hs);
}
return(retval);
}
}
public void CreateReadDelete_HistoricalStockData()
{
var id = Guid.Parse("73F8252A-01A8-4710-97C4-A2D00108271E");
var historicalStock = new HistoricalStock(id, "TEST", "TEST", DateTime.Now, 100M, 104M, 98M, 94.5M, 4500);
Assert.DoesNotThrow(() => historicalStockRepository.Insert(historicalStock));
// Verify insertion by performing a select
var selectHistoricalStock = historicalStockRepository.GetBy(x => x.HistoricalStockId, id).Single();
Assert.AreEqual(historicalStock.HistoricalStockId, selectHistoricalStock.HistoricalStockId);
// Remove test data
Assert.DoesNotThrow(() => historicalStockRepository.Delete(historicalStock));
}
public void CreateUpdateRead_HistoricalStockData()
{
// Create
var id = Guid.Parse("73F8252A-01A8-4710-97C4-A2D00108271E");
var historicalStock = new HistoricalStock(id, "TEST", "TEST", DateTime.Now, 100M, 104M, 98M, 94.5M, 4500);
Assert.DoesNotThrow(() => historicalStockRepository.Insert(historicalStock));
// Update
historicalStock.Open = 1000M;
Assert.DoesNotThrow(() => historicalStockRepository.Update(historicalStock));
// Read, check if updated to new value.
var selectHistoricalStock = historicalStockRepository.GetBy(x => x.HistoricalStockId, id).Single();
Assert.AreEqual(1000M, selectHistoricalStock.Open);
// Delete
Assert.DoesNotThrow(() => historicalStockRepository.Delete(historicalStock));
}
public void LoadHistoricalChartData(object chartIdentifier, DateTime startDate, DateTime endDate)
{
string ticker = chartIdentifier as string;
int startYear = startDate.Year;
int startMonth = startDate.Month - 1; // have to subtract 1 from the month to get the right data from Yahoo
int startDay = startDate.Day;
int endYear = endDate.Year;
int endMonth = endDate.Month - 1; // have to subtract 1 from the month to get the right data from Yahoo
int endDay = endDate.Day;
ezDateRange dateRangeRequested = new ezDateRange();
ezDateRange dateRangeProcessed = new ezDateRange();
List <HistoricalStock> historical = YahooHistoricalDownloader.Instance.DownloadData(ticker, startDate, endDate);
// Start with an empty set of TradeBars.
chartData.TradeBars.Clear();
// Yahoo downloads the data in reverse date order (most recent dates first, then previous day, and so on). So
// we need to reverse it when we put it into our chart data.
for (int i = historical.Count - 1; i >= 0; i--)
{
HistoricalStock hs = historical[i];
ezBarDataPoint bdp = new ezBarDataPoint();
bdp.TradeDate = hs.Date;
bdp.Open = hs.Open;
bdp.High = hs.High;
bdp.Low = hs.Low;
bdp.Close = hs.Close;
bdp.Volume = hs.Volume;
chartData.TradeBars.Add(bdp);
}
if (DataLoadComplete != null)
{
DataLoadComplete(this, new ezDataLoadCompleteEventArgs(zDataLoadStatus.Success, dateRangeRequested, dateRangeProcessed));
}
}
// Query the stock service.
public List <HistoricalStock> GetDataUpdatesFoOneDataSource
(string ticker, string mostRecentDate)
{
DateTime _startDate = DateTime.Now.Date;
DateTime _endDate;
_endDate = Convert.ToDateTime(mostRecentDate);
List <HistoricalStock> retval = new List <HistoricalStock>();
if (_startDate.Date != _endDate.Date)
{
int _startMonthTemp = _startDate.Month - 1;
string _startMonth = _startMonthTemp.ToString();
string _startDay = _startDate.Day.ToString();
string _startYear = _startDate.Year.ToString();
_endDate = _endDate.AddDays(1);
int _endMonthTemp = _endDate.Month - 1;
string _endMonth = _endMonthTemp.ToString();
string _endDay = _endDate.Day.ToString();
string _endYear = _endDate.Year.ToString();
using (WebClient web = new WebClient())
{
string _inputString = "http://ichart.finance.yahoo.com/table.csv?s=" +
ticker + "&d=" + _startMonth + "&e=" + _startDay + "&f=" + _startYear +
"&g=d&a=" + _endMonth + "&b=" + _endDay + "&c=" + _endYear + "&ignore=.csv";
string data = web.DownloadString(_inputString);
data = data.Replace("r", "");
string[] rows = data.Split('\n');
//First row is headers so Ignore it
for (int i = 1; i < rows.Length; i++)
{
if (rows[i].Replace("n", "").Trim() == "")
{
continue;
}
string[] cols = rows[i].Split(',');
HistoricalStock hs = new HistoricalStock();
hs.Date = Convert.ToDateTime(cols[0]);
hs.Open = Convert.ToDouble(cols[1]);
hs.High = Convert.ToDouble(cols[2]);
hs.Low = Convert.ToDouble(cols[3]);
hs.Close = Convert.ToDouble(cols[4]);
hs.Volume = Convert.ToDouble(cols[5]);
hs.AdjClose = Convert.ToDouble(cols[6]);
retval.Add(hs);
}
if (retval.Count > 1)
{
if (retval[0].Date == retval[1].Date)
{
retval.RemoveAt(0);
}
}
}
}
return(retval);
}
