private void LoadDataSettingsFile(string fileName)
{
_stockDataSettings = ChinaStockDataSettings.LoadFromFile(fileName);
_stockNameTable = new StockNameTable(_stockDataSettings.StockNameTableFile);
// fill the codes and names to grid view
var stockProperties = _stockNameTable.StockNames
.Select(sn => new StockProperty()
{
Code = sn.Code,
Name = string.Join("|", sn.Names)
})
.OrderBy(sp => sp.Code)
.ToArray();
dataGridViewCodes.DataSource = new SortableBindingList <StockProperty>(stockProperties);
// reset data accessor (cache)
ChinaStockDataAccessor.Reset();
}
public MainForm()
{
InitializeComponent();
dataGridViewCodes.AutoGenerateColumns = false;
ColumnCodesCode.DataPropertyName = "Code";
ColumnCodesName.DataPropertyName = "Name";
dataGridViewClosedPosition.AutoGenerateColumns = false;
ColumnPositionCode.DataPropertyName = "Code";
ColumnPositionName.DataPropertyName = "Name";
ColumnPositionBuyTime.DataPropertyName = "BuyTime";
ColumnPositionBuyPrice.DataPropertyName = "BuyPrice";
ColumnPositionSellTime.DataPropertyName = "SellTime";
ColumnPositionSellPrice.DataPropertyName = "SellPrice";
ColumnPositionVolume.DataPropertyName = "Volume";
ColumnPositionGain.DataPropertyName = "Gain";
ColumnPositionR.DataPropertyName = "R";
// initialize data accessor (cache)
ChinaStockDataAccessor.Initialize();
}
private void ShowStockData(string code, DateTime startTime, DateTime endTime, bool addAnnotation)
{
string file = _stockDataSettings.BuildActualDataFilePathAndName(code);
StockHistoryData data;
try
{
data = ChinaStockDataAccessor.Load(file, _stockNameTable);
}
catch (Exception ex)
{
ShowError("Load data file failed", ex);
return;
}
// update label of code
labelCode.Text = code;
var stockSeries = chartData.Series[StockSeriesIndex];
var volumeSeries = chartData.Series[VolumeSeriesIndex];
var chartArea = chartData.ChartAreas[ChartAreaIndex];
var bars = data.DataOrderedByTime;
if (bars == null || bars.Count() == 0)
{
stockSeries.Points.Clear();
volumeSeries.Points.Clear();
return;
}
// add data to chart
if (data != _currentShownData)
{
_currentShownData = data;
stockSeries.Points.Clear();
volumeSeries.Points.Clear();
for (int i = 0; i < bars.Length; ++i)
{
var bar = bars[i];
stockSeries.Points.AddXY(
bar.Time,
bar.HighestPrice,
bar.LowestPrice,
bar.OpenPrice,
bar.ClosePrice);
volumeSeries.Points.AddXY(bar.Time, bar.Volume);
}
}
// calculate the index of start time and end time in data
int startIndex = GetIndexOfTimeInBars(bars, startTime);
int endIndex = GetIndexOfTimeInBars(bars, endTime);
if (startIndex > endIndex)
{
int temp = startIndex;
startIndex = endIndex;
endIndex = temp;
}
// create scale view to cover start time and end time
int position = startIndex - SurroundDataPointCount;
int size = endIndex - startIndex + SurroundDataPointCount * 2;
position = Math.Max(0, position);
size = Math.Min(Math.Max(MinScaleViewSize, size), bars.Length);
if (size + position > bars.Length)
{
position = bars.Length - size;
}
chartArea.AxisX.ScaleView = new System.Windows.Forms.DataVisualization.Charting.AxisScaleView()
{
Position = position,
Size = size
};
// adjust view to accomendate the scale
AdjustChartView();
// add annotation
var startAnnotation = chartData.Annotations[StartAnnotationIndex];
var endAnnotation = chartData.Annotations[EndAnnotationIndex];
if (addAnnotation)
{
//startAnnotation.AnchorDataPoint = stockSeries.Points[startIndex];
//endAnnotation.AnchorDataPoint = stockSeries.Points[endIndex];
startAnnotation.AnchorX = startIndex + 1;
startAnnotation.AnchorY = bars[startIndex].LowestPrice;
endAnnotation.AnchorX = endIndex + 1;
endAnnotation.AnchorY = bars[endIndex].HighestPrice;
startAnnotation.Visible = true;
endAnnotation.Visible = true;
}
else
{
//startAnnotation.AnchorDataPoint = null;
//endAnnotation.AnchorDataPoint = null;
startAnnotation.AnchorX = 0;
startAnnotation.AnchorY = 0;
endAnnotation.AnchorX = 0;
endAnnotation.AnchorY = 0;
startAnnotation.Visible = false;
endAnnotation.Visible = false;
}
chartData.Invalidate();
chartData.Update();
}