/// <summary>
/// Load the List with StockPoint objects
/// </summary>
/// <param name="stockPoints">Stock points to fill.</param>
/// <param name="st">Stream with CSV data.</param>
public static void LoadList(ref StockPoints stockPoints, Stream st)
{
StreamReader sr = new StreamReader(st);
string line;
int lineNumber = 1;
double open;
double high;
double low;
double close;
long volume;
while (!sr.EndOfStream)
{
line = sr.ReadLine();
string[] terms = line.Split(',');
for (int i = 0; i < 7; i++)
{
if (terms[i] == String.Empty)
{
terms[i] = "0";
}
}
open = (double)Double.Parse(terms[0]);
high = (double)Double.Parse(terms[1]);
low = (double)Double.Parse(terms[2]);
close = (double)Double.Parse(terms[3]);
volume = Int64.Parse(terms[4]);
StockPoint stockPoint = new StockPoint(terms[6], terms[5], open, high, low, close, volume);
stockPoints.Add(stockPoint);
lineNumber++;
}
}
//Aroon
public static void CalculateAroon(out string key, out string key2, StockPoints data, Dictionary<DateTime, Dictionary<string, double>> indicators, int period, out int offset)
{
key = string.Format("Aroon-UP({0})", period.ToString("00"));
key2 = string.Format("Aroon-Down({0})", period.ToString("00"));
offset = period - 1;
// Aroon-Up = ((period - Days Since period-day High)/period) x 100
double up;
// Aroon-Down = ((period - Days Since period-day Low)/period) x 100
double down;
// day since 25 day high
int high;
// day since 25 day low
int low;
Queue<double> highVals = new Queue<double>();
Queue<double> lowVals = new Queue<double>();
int i = 0;
foreach(StockPoint point in data)
{
highVals.Enqueue(point.High);
lowVals.Enqueue(point.Low);
if(highVals.Count > period)
{
highVals.Dequeue();
lowVals.Dequeue();
}
if (i < period - 1)
{
i++;
}
else
{
high = period - highVals.ToList().IndexOf(highVals.Max());
low = period - highVals.ToList().IndexOf(highVals.Min());
up = ((period - high) / (double)period) * 100;
down = ((period - low) / (double)period) * 100;
AddValue(point.PointDateTime, key, up, indicators);
AddValue(point.PointDateTime, key2, down, indicators);
}
}
}
/// <summary>
/// Populates the datagrid with a given StockPoints object.
/// </summary>
/// <param name="stockPoints">Data to put in the grid.</param>
/// <param name="dgv">Grid to fill with data.</param>
public static void PopulateGrid(ref StockPoints stockPoints, DataGridView dgv)
{
string[] terms = new string[8];
int i = 1;
foreach (StockPoint s in stockPoints)
{
terms[0] = string.Empty + i;
terms[1] = string.Empty + s.Open;
terms[2] = string.Empty + s.High;
terms[3] = string.Empty + s.Low;
terms[4] = string.Empty + s.Close;
terms[5] = string.Empty + s.Volume;
terms[6] = s.Time;
terms[7] = s.Date;
dgv.Rows.Add(terms);
i++;
}
}
// SMA
/// <summary>
/// Calculates the Simple Moving Average and fills indicators with the data needed to graph it.
/// </summary>
/// <param name="key">Name of the set to put in the graph key</param>
/// <param name="data">StockPoints to calculate the SMA with.</param>
/// <param name="indicators">The mfvvalues needed to graph the SMA.</param>
/// <param name="period">The number of days to average.</param>
/// <param name="offset">Where to start the graph.</param>
public static void CalculateSma(out string key, StockPoints data, Dictionary<DateTime, Dictionary<string, double>> indicators, int period, out int offset)
{
key = "SMA(" + period.ToString("00") + ")";
SimpleMovingAverage sma = new SimpleMovingAverage(period);
offset = period - 1;
foreach (StockPoint point in data)
{
sma.AddValue(point.Close);
if (sma.Period == sma.ValueCount)
{
AddValue(point.PointDateTime, key, sma.MovingAverage(), indicators);
}
}
}
// RSI
/// <summary>
/// Calculates the Relative Strength Index and fills indicators with the data needed to graph it.
/// </summary>
/// <param name="key">Name of the set to put in the graph key</param>
/// <param name="data">StockPoints to calculate the Relative Strength Index with.</param>
/// <param name="indicators">The mfvvalues needed to graph the RSI.</param>
/// <param name="period">The number of days gained/lost to consider.</param>
/// <param name="offset">Where to start the graph.</param>
public static void CalculateRsi(out string key, StockPoints data, Dictionary<DateTime, Dictionary<string, double>> indicators, int period, out int offset)
{
key = "RSI(" + period.ToString("00") + ")";
ExponentialMovingAverage gains = new ExponentialMovingAverage(period);
ExponentialMovingAverage losses = new ExponentialMovingAverage(period);
offset = period;
int i = 0;
StockPoint previousPoint = data[0];
foreach (StockPoint point in data.Skip(1))
{
if (previousPoint.Close > point.Close)
{
losses.AddValue(previousPoint.Close - point.Close);
gains.AddValue(0);
}
else if (previousPoint.Close < point.Close)
{
gains.AddValue(point.Close - previousPoint.Close);
losses.AddValue(0);
}
if (i < period - 1)
{
i++;
}
else
{
double rsi = 100 - (100 / (1 + (gains.MovingAverage / losses.MovingAverage)));
AddValue(point.PointDateTime, key, rsi, indicators);
}
previousPoint = point;
}
}
// Money Flow Index
public static void CalculateMFI(out string key, StockPoints data, Dictionary<DateTime, Dictionary<string, double>> indicators, int period, out int offset)
{
key = string.Format("MFI({0})", period.ToString("00"));
offset = period;
// Typical Price = (High + Low + Close)/3
double typicalPrice;
// Raw Money Flow = Typical Price x Volume
double rawMoneyFlow;
// Money Flow Ratio = (x-period Positive Money Flow)/(x-period Negative Money Flow)
double moneyFlowRatio;
// Money Flow Index = 100 - 100/(1 + Money Flow Ratio)
double moneyFlowIndex;
double positiveMoneyFlow = 0D;
double negativeMoneyFLow = 0D;
Queue<double> moneyFlow = new Queue<double>();
double previousTipycalPrice = (data[0].Low + data[0].High + data[0].Close) / 3;
int i = 0;
foreach (StockPoint point in data.Skip(1))
{
typicalPrice = (point.Low + point.High + point.Close) / 3;
rawMoneyFlow = typicalPrice * point.Volume;
moneyFlow.Enqueue(rawMoneyFlow * (typicalPrice >= previousTipycalPrice ? 1 : -1));
if(moneyFlow.Count > period)
{
moneyFlow.Dequeue();
}
if (i < period - 1)
{
i++;
}
else
{
positiveMoneyFlow = moneyFlow.Where(v => v >= 0).Sum();
negativeMoneyFLow = Math.Abs(moneyFlow.Where(v => v < 0).Sum());
moneyFlowRatio = positiveMoneyFlow / negativeMoneyFLow;
moneyFlowIndex = 100 - (100 / (1 + moneyFlowRatio));
AddValue(point.PointDateTime, key, moneyFlowIndex, indicators);
}
previousTipycalPrice = typicalPrice;
}
}
// MACD
public static void CalculateMACD(out string key, out string key2, out double[] key3, StockPoints data, Dictionary<DateTime, Dictionary<string, double>> indicators, int period1, int period2, int period3, out int offset, out int min, out int max)
{
min = int.MaxValue;
max = int.MinValue;
key = string.Format("MACD({0}-{1}-{2})", period1.ToString("00"), period2.ToString("00"), period3.ToString("00"));
key2 = string.Format("MACD-SignalLine({0}-{1}-{2})", period1.ToString("00"), period2.ToString("00"), period3.ToString("00"));
List<double> hist = new List<double>();
offset = (new List<int>(){period1, period2}.Max()) - 1;
ExponentialMovingAverage ema1 = new ExponentialMovingAverage(period1);
ExponentialMovingAverage ema2 = new ExponentialMovingAverage(period2);
ExponentialMovingAverage ema3 = new ExponentialMovingAverage(period3);
int i = 0;
foreach(StockPoint point in data)
{
ema1.AddValue(point.Close);
ema2.AddValue(point.Close);
double EMA1 = ema1.MovingAverage;
double EMA2 = ema2.MovingAverage;
double MACDLine = EMA1 - EMA2;
ema3.AddValue(MACDLine);
if (i < offset)
{
i++;
hist.Add(0);
}
else
{
double SignalLine = ema3.MovingAverage;
if (min > MACDLine || min > SignalLine)
{
min = (int)(Math.Floor(MACDLine < SignalLine ? MACDLine : SignalLine));
}
if (max < MACDLine || max < SignalLine)
{
max = (int)(Math.Ceiling(MACDLine > SignalLine ? MACDLine : SignalLine));
}
AddValue(point.PointDateTime, key, MACDLine, indicators);
AddValue(point.PointDateTime, key2, SignalLine, indicators);
hist.Add(MACDLine - SignalLine);
}
}
key3 = hist.ToArray();
}
// TRIX
public static void CalculateTRIX(out string key, out string key2, StockPoints data, Dictionary<DateTime, Dictionary<string, double>> indicators, int period, int period2, out int offset, out int min, out int max, bool leverage = false)
{
min = int.MaxValue;
max = int.MinValue;
key = string.Format("TRIX({0}-{1})", period.ToString("00"), period2.ToString("00"));
key2 = string.Format("TRIX-Smooth-({0}-{1})", period.ToString("00"), period2.ToString("00"));
offset = 3 * (period > period2 ? period : period2);
ExponentialMovingAverage ema1 = new ExponentialMovingAverage(period);
ExponentialMovingAverage ema2 = new ExponentialMovingAverage(period);
ExponentialMovingAverage ema3 = new ExponentialMovingAverage(period);
ExponentialMovingAverage ema4 = new ExponentialMovingAverage(period2);
double singleSmooth;
double doubleSmooth;
double tripleSmooth;
double prevTriplesmooth = -1;
double trix;
int i = 0;
foreach (StockPoint point in data)
{
ema1.AddValue(point.Close);
if (i < period)
{
i++;
}
else
{
singleSmooth = ema1.MovingAverage;
ema2.AddValue(singleSmooth);
if (i < 2 * period)
{
i++;
}
else
{
doubleSmooth = ema2.MovingAverage;
ema3.AddValue(doubleSmooth);
if (i < 3 * period)
{
i++;
}
else
{
tripleSmooth = ema3.MovingAverage;
if (prevTriplesmooth != -1)
{
trix = (double)decimal.Round((((decimal)tripleSmooth - (decimal)prevTriplesmooth) / (decimal)tripleSmooth) * 100 * (leverage ? 100 : 1), 4);
ema4.AddValue(trix);
AddValue(point.PointDateTime, key, trix, indicators);
AddValue(point.PointDateTime, key2, ema4.MovingAverage, indicators);
if (min > trix)
min = (int)Math.Floor(trix);
if (max < trix)
max = (int)Math.Ceiling(trix);
}
prevTriplesmooth = tripleSmooth;
}
}
}
}
}
// Chaikin Oscillator
public static void CalculateChaikinOscillator(out string key, StockPoints data, Dictionary<DateTime, Dictionary<string, double>> indicators, int period1, int period2, out int offset, out int min, out int max)
{
key = string.Format("ChiOsc({0}:{1})", period1.ToString("00"), period2.ToString("00"));
offset = (period2 > period1 ? period2 : period1) - 1;
min = int.MaxValue;
max = int.MinValue;
// Money Flow Multiplier = [(Close - Low) - (High - Close)] /(High - Low)
double mfm;
// Money Flow Volume = Money Flow Multiplier x Volume for the Period
double mfv;
// ADL = Previous ADL + Current Period's Money Flow Volume
double adl = 0D;
// CHaikin Oscillator
double co;
ExponentialMovingAverage ema1 = new ExponentialMovingAverage(period1);
ExponentialMovingAverage ema2 = new ExponentialMovingAverage(period2);
int i = 0;
foreach (StockPoint point in data)
{
mfm = ((point.Close - point.Low) - (point.High - point.Close)) / (point.High - point.Low == 0 ? 1 : point.High - point.Low);
mfv = mfm * point.Volume;
adl = adl + mfv;
ema1.AddValue(adl);
ema2.AddValue(adl);
if (i < period2 - 1)
{
i++;
}
else
{
co = ema1.MovingAverage - ema2.MovingAverage;
if (min > co)
min = (int)Math.Floor(co);
if (max < co)
max = (int)Math.Ceiling(co);
AddValue(point.PointDateTime, key, co, indicators);
}
}
}
//cci
public static void CalculateCCI(out string key, StockPoints data, Dictionary<DateTime, Dictionary<string, double>> indicators, int period, out int offset, out int min, out int max)
{
key = string.Format("CCI({0})", period.ToString("00"));
offset = period - 1;
min = int.MaxValue;
max = int.MinValue;
// cci = (Typical Price - 20-period SMA of TP) / (.015 x Mean Deviation)
double cci;
// Typical Price (TP) = (High + Low + Close)/3
double typicalPrice;
double constant = 0.015;
SimpleMovingAverage sma = new SimpleMovingAverage(period);
int i = 0;
foreach (StockPoint point in data)
{
typicalPrice = (point.High + point.Close + point.Low) / 3D;
sma.AddValue(typicalPrice);
if (i < period - 1)
{
i++;
}
else
{
cci = (typicalPrice - sma.MovingAverage())/ (constant * sma.MeanDeviation());
AddValue(point.PointDateTime, key, cci, indicators);
if (min > cci)
min = (int)Math.Floor(cci);
if (max < cci)
max = (int)Math.Ceiling(cci);
}
}
}
// calculate Bollinger Bands
public static void CalculateBollinger(out string key, out string key2, out string key3, StockPoints data, Dictionary<DateTime, Dictionary<string, double>> indicators, int period, int multiplier, out int offset)
{
key = string.Format("BB-Upper-({0}:{1})", period.ToString("00"), multiplier.ToString("00"));
key2 = string.Format("BB-Mid-({0}:{1})", period.ToString("00"), multiplier.ToString("00"));
key3 = string.Format("BB-Lower-({0}:{1})", period.ToString("00"), multiplier.ToString("00"));
offset = period - 1;
double upperBand;
double midBand;
double lowerBand;
SimpleMovingAverage sma = new SimpleMovingAverage(period);
SimpleMovingAverage smaPrice = new SimpleMovingAverage(period);
int i = 0;
foreach (StockPoint point in data)
{
sma.AddValue(point.Close);
if (i < period - 1)
{
i++;
}
else
{
double smaValue = sma.MovingAverage();
double stdMultiplied = sma.StandardDeviation() * multiplier;
upperBand = smaValue + stdMultiplied;
midBand = smaValue;
lowerBand = smaValue - stdMultiplied;
AddValue(point.PointDateTime, key, upperBand, indicators);
AddValue(point.PointDateTime, key2, midBand, indicators);
AddValue(point.PointDateTime, key3, lowerBand, indicators);
}
}
}
/// <summary>
/// Draws the Open High Low Close graph.
/// </summary>
/// <param name="data">The stock points to plot.</param>
/// <param name="control">The control to plot on.</param>
public void DrawOHLCGraph(ref StockPoints data, ref ZedGraph.ZedGraphControl control)
{
StockPointList pointList = new StockPointList();
XDate date = new XDate();
foreach (StockPoint s in data)
{
date = new XDate(s.PointDateTime.Year, s.PointDateTime.Month, s.PointDateTime.Day, s.PointDateTime.Hour, s.PointDateTime.Minute, 0);
StockPt p = new StockPt(date.XLDate, s.High, s.Low, s.Open, s.Close, s.Volume);
pointList.Add(p);
}
Color[] colors = { Color.Red, Color.Black };
Fill myFill = new Fill(colors);
myFill.Type = FillType.GradientByColorValue;
myFill.SecondaryValueGradientColor = Color.Empty;
myFill.RangeMin = 1;
myFill.RangeMax = 2;
MasterPane masterPane = control.MasterPane;
masterPane.Margin.All = 10;
masterPane.InnerPaneGap = 5;
GraphPane ohlcPane = new GraphPane(new Rectangle(10, 10, 10, 10), "OHLC", "Time", "Price");
ohlcPane.IsBoundedRanges = true;
OHLCBarItem bar = ohlcPane.AddOHLCBar("Price", pointList, Color.Empty);
bar.Bar.GradientFill = myFill;
bar.Bar.IsAutoSize = true;
bar.Bar.Size = 5;
ohlcPane.Title.Text = "OHLC Graph";
ohlcPane.XAxis.Type = AxisType.DateAsOrdinal;
ohlcPane.XAxis.Title.Text = "Date";
ohlcPane.YAxis.Title.Text = "Price";
ohlcPane.Margin.All = 0;
ohlcPane.Margin.Top = 10;
ohlcPane.YAxis.MinSpace = 10;
ohlcPane.Y2Axis.MinSpace = 10;
ohlcPane.AxisChange();
masterPane.Add(ohlcPane);
control.IsShowHScrollBar = true;
control.ScrollMinX = 0;
control.ScrollMaxX = data.Count;
control.GraphPane.XAxis.Scale.Max = data.Count;
if (data.Count >= 99)
{
control.GraphPane.XAxis.Scale.Min = data.Count - 99;
}
else
{
control.GraphPane.XAxis.Scale.Min = 0;
}
using (Graphics g = control.CreateGraphics())
{
masterPane.SetLayout(g, PaneLayout.SingleColumn);
masterPane.AxisChange(g);
// Synchronize the Axes
//// g.Dispose();
}
}
public StockPointBuilder()
{
this.stockPoint = new StockPoints();
}
// Full Stochastic
/// <summary>
/// Calculates the Full Stochastic Oscillator and fills indicators with the data needed to graph it.
/// </summary>
/// <param name="key">Name of the first set to put in the graph key</param>
/// <param name="key2">Name of the second set to put in the graph key</param>
/// <param name="data">StockPoints to calculate the Full Stochastic with.</param>
/// <param name="indicators">The mfvvalues needed to graph the Full Stochastic.</param>
/// <param name="period1">The number of period to calculate Fast Stochastic.</param>
/// <param name="period2">The number of period to calculate SMA of Fast Stochastic.</param>
/// <param name="period3">The number of period to calculate SMA of calculated SMA of Fast Stochastic.</param>
/// <param name="offset">Where to start the graph.</param>
public static void CalculateStochastic(out string key, out string key2, StockPoints data, Dictionary<DateTime, Dictionary<string, double>> indicators, int period1, int period2, int period3, out int offset)
{
key = string.Format("Full STO %K({0}:{1})", period1.ToString("00"), period2.ToString("00"));
key2 = string.Format("Full STO %D({0})", period3.ToString("00"));
offset = period1 - 1;
SimpleMovingAverage ksma = new SimpleMovingAverage(period2);
SimpleMovingAverage dsma = new SimpleMovingAverage(period3);
// lowest among the lowest for the chosen period
double lowestLow;
// highest among the highest for the chosen period
double highestHigh;
// Lowest Low = lowest low for the look-back period
// Highest High = highest high for the look-back period
// fastk = (Current Close - Lowest Low)/(Highest High - Lowest Low) * 100
double fastk;
// fullk smoothed with X-period SMA
double fullk;
// X-period SMA of Full fullk
double fulld;
int i = 0;
// loop through each stockpoint skipping the
foreach (StockPoint point in data)
{
lowestLow = data.Skip(data.IndexOf(point) - (period1 - 1)).Take(period1).OrderBy(sp => sp.Low).FirstOrDefault().Low;
highestHigh = data.Skip(data.IndexOf(point) - (period1 - 1)).Take(period1).OrderByDescending(sp => sp.High).FirstOrDefault().High;
fastk = (point.Close - lowestLow) / (highestHigh - lowestLow == 0 ? 1 : highestHigh - lowestLow) * 100;
ksma.AddValue(fastk);
fullk = ksma.MovingAverage();
dsma.AddValue(fullk);
fulld = dsma.MovingAverage();
if (i < period1 - 1)
{
i++;
}
else
{
AddValue(point.PointDateTime, key, fullk, indicators);
AddValue(point.PointDateTime, key2, fulld, indicators);
}
}
}
// CMF
/// <summary>
/// Calculates the Chaikin Money Flow Index and fills indicators with the data needed to graph it.
/// </summary>
/// <param name="key">Name of the set to put in the graph key</param>
/// <param name="data">StockPoints to calculate the Chaikin Money Flow with.</param>
/// <param name="indicators">The mfvvalues needed to graph the Chaikin Money Flow.</param>
/// <param name="period">The number of period to consider.</param>
/// <param name="offset">Where to start the graph.</param>
public static void CalculateCMF(out string key, StockPoints data, Dictionary<DateTime, Dictionary<string, double>> indicators, int period, out int offset)
{
key = string.Format("CMF({0})", period.ToString("00"));
offset = period - 1;
// Money Flow Multiplier = [(Close - Low) - (High - Close)] /(High - Low)
double mfm;
// Money Flow Volume = Money Flow Multiplier x Volume for the Period
double mfv;
// Chaikin money flow
ChaikinMoneyFlow cmf = new ChaikinMoneyFlow(period);
// Given Period Chaikin Money Flow value
double cmfValue;
int i = 0;
foreach(StockPoint point in data)
{
mfm = ((point.Close - point.Low) - (point.High - point.Close)) / (point.High - point.Low == 0 ? 1 : point.High - point.Low);
mfv = mfm * point.Volume;
cmf.AddMFVValue(mfv);
cmf.AddVolumeValue(point.Volume);
if (i < period - 1)
{
i++;
}
else
{
cmfValue = cmf.CalculateChaikinMoneyFlow();
AddValue(point.PointDateTime, key, cmfValue, indicators);
}
}
}
// Stochastic RSI
public static void CalculateStochasticRSI(out string key, StockPoints data, Dictionary<DateTime, Dictionary<string, double>> indicators, int period, out int offset, bool leverage = true)
{
key = string.Format("StocRSI({0})", period.ToString("00"));
ExponentialMovingAverage gains = new ExponentialMovingAverage(period);
ExponentialMovingAverage losses = new ExponentialMovingAverage(period);
offset = period * 2;
double rsi;
double stochRSI;
double highestRSI;
double lowestRSI;
Queue<double> rsiQueue = new Queue<double>();
StockPoint previousPoint = data[0];
int i = 0;
foreach (StockPoint point in data.Skip(1))
{
if (previousPoint.Close > point.Close)
{
losses.AddValue(previousPoint.Close - point.Close);
gains.AddValue(0);
}
else if (previousPoint.Close < point.Close)
{
gains.AddValue(point.Close - previousPoint.Close);
losses.AddValue(0);
}
if (i < period - 1)
{
i++;
}
else
{
rsi = 100 - (100 / (1 + (gains.MovingAverage / losses.MovingAverage)));
rsiQueue.Enqueue(rsi);
if (rsiQueue.Count > period)
{
rsiQueue.Dequeue();
}
if (rsiQueue.Count == period)
{
highestRSI = rsiQueue.Max();
lowestRSI = rsiQueue.Min();
stochRSI = (rsi - lowestRSI) / (highestRSI - lowestRSI) * (leverage ? 100 : 1);
AddValue(point.PointDateTime, key, stochRSI, indicators);
}
}
previousPoint = point;
}
}
// EMA
/// <summary>
/// Calculates the Exponential Moving Average and fills indicators with the data needed to graph it.
/// </summary>
/// <param name="key">Name of the set to put in the graph key</param>
/// <param name="data">StockPoints to calculate the EMA with.</param>
/// <param name="indicators">The mfvvalues needed to graph the EMA.</param>
/// <param name="period">The number of days to average.</param>
/// <param name="offset">Where to start the graph.</param>
public static void CalculateEma(out string key, StockPoints data, Dictionary<DateTime, Dictionary<string, double>> indicators, int period, out int offset)
{
key = "EMA(" + period.ToString("00") + ")";
ExponentialMovingAverage ema = new ExponentialMovingAverage(period);
offset = period - 1;
int i = 0;
foreach (StockPoint point in data)
{
ema.AddValue(point.Close);
if (i < offset)
{
i++;
}
else
{
AddValue(point.PointDateTime, key, ema.MovingAverage, indicators);
}
}
}
/// <summary>
/// Add a horizontal line to the graph
/// </summary>
/// <param name="key">The name of the line to graph.</param>
/// <param name="data">A list of stock points to get the date time range. (x-axis)</param>
/// <param name="lineValue">The location of the line. (y-axis)</param>
/// <param name="indicators">The dictionary to add the line to.</param>
public static void GetHorizontalLine(string key, StockPoints data, double lineValue, Dictionary<DateTime, Dictionary<string, double>> indicators)
{
for (int i = 0; i < data.Count; i++)
{
AddValue(data[i].PointDateTime, key, lineValue, indicators);
}
}
public VariantsBuilder WithStockPoint(StockPoints stockPoint)
{
this.variants.stockPoints.Add(stockPoint);
return(this);
}