void chartData_DataSeriesUpdated(object sender, ezDataSeriesUpdatedEventArgs e) { if (DataSeriesUpdated != null) { DataSeriesUpdated(this, e); } }
void chartDataSeries_DataSeriesUpdated(object sender, DataSeriesUpdatedEventArgs e) { Spy.Print("DataSeriesUpdated (on thread)"); if (e.TradeBarIndexUpdate == -1) { return; } var update = new ezDataSeriesUpdatedEventArgs(e.ModeIndexUpdate, e.SettlementIndexUpdate, e.TradeBarIndexUpdate); for (int i = e.TradeBarIndexUpdate; i < ctsChartData.TradeBars.Count; i++) { if (i >= chartData.TradeBars.Count) { BarDataPoint bdp = ctsChartData.TradeBars[i] as BarDataPoint; var ezBar = new ezBarDataPoint(); ezBar.Open = bdp.OpenTicks; ezBar.High = bdp.HighTicks; ezBar.Low = bdp.LowTicks; ezBar.Close = bdp.CloseTicks; ezBar.TradeCount = bdp.TradeCount; ezBar.Volume = bdp.Volume; ezBar.TradeDate = bdp.TradeDate; ezBar.Time = bdp.Time; chartData.TradeBars.Add(ezBar); } else { BarDataPoint bdp = ctsChartData.TradeBars[i] as BarDataPoint; //var ezBar = new ezBarDataPoint(bdp.OpenTicks, bdp.HighTicks, bdp.LowTicks, bdp.CloseTicks, bdp.TradeCount, bdp.Volume, bdp.TradeDate, bdp.Time); var ezBar = new ezBarDataPoint(); ezBar.Open = bdp.OpenTicks; ezBar.High = bdp.HighTicks; ezBar.Low = bdp.LowTicks; ezBar.Close = bdp.CloseTicks; ezBar.TradeCount = bdp.TradeCount; ezBar.Volume = bdp.Volume; ezBar.TradeDate = bdp.TradeDate; ezBar.Time = bdp.Time; chartData.UpdateTradeBar(i, ezBar); } } chartData.DataProviderSeriesUpdated(update); }
private void // ERROR: Handles clauses are not supported in C# moBarData_DataSeriesUpdated(object sender, ezDataSeriesUpdatedEventArgs e) { // NOTE: This event is raised on it's own thread. If you are updating a GUI application with the chart data (like this example), don't forget that you // MUST marshall this update onto the GUI thread before you modify any GUI components. // (This is the same for all T4 API events.) if (this.InvokeRequired) { // An invoke is required to update the GUI, simply invoke back to this same mthod. this.BeginInvoke(new ezDataSeriesUpdatedEventHandler(moBarData_DataSeriesUpdated), new object[] { sender, e }); // Don't forget to exit now! return; } //On the GUI thread now, update the chart. // Before iterating the data collection, you MUST lock it. This will prevent live trade updates from modifying the collection as you read it. chartDataProvider.Lock(); try { //e.TradeBarIndexUpdate is the index of the first bar that was added or updated since the last update event. for (int i = e.TradeBarIndexUpdate; i <= chartDataProvider.ChartData.TradeBars.Count - 1; i++) { ezBarDataPoint oBar = (ezBarDataPoint)chartDataProvider.ChartData.TradeBars[i]; if (i < chart1.Series[0].Points.Count) { Spy.Print("Updating bar index {0} - close = {1}", i, oBar.Close); // Update the chart series. DataPoint dp1 = chart1.Series[0].Points[i]; dp1.YValues[0] = oBar.High; dp1.YValues[1] = oBar.Low; dp1.YValues[2] = oBar.Open; dp1.YValues[3] = oBar.Close; DataPoint dp2 = chart1.Series[1].Points[i]; dp2.YValues[0] = oBar.Volume; RecalcAllActiveSeries(); chart1.Refresh(); } else { xAxis = chart1.ChartAreas["ChartAreaMain"].AxisX; bool scrollToFurthest = (xAxis.ScaleView.ViewMaximum == xAxis.Maximum); AddBarToChart(oBar); RecalcAllActiveSeries(); chart1.Refresh(); if (scrollToFurthest == true) { xAxis.ScaleView.Scroll(xAxis.Maximum); } } } } catch (Exception ex) { Spy.Print("Error updating chart data: " + ex.ToString()); status.Text = "Error updating chart data: " + ex.ToString(); } finally { // If you don't be sure to unlock the data collection, you probably won't get any live trade updates. chartDataProvider.Unlock(); } }