C1Chart Win Conditionnal xyplot dot color

C1Chart Win Conditionnal xyplot dot color

Posted by: earobitaille on 2 November 2018, 11:40 am EST

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  earobitaille

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  Posted 2 November 2018, 11:40 am EST - Updated 4 October 2022, 2:01 am EST

  I Have 2 questions

  1 - Is there a way to change the symbol color of each dot depending on a condition. See the picture for an example

  

  1180×386 58.8 KB

  2 - Is there a way to sync the Y Scale and the Y2 Scale when set to Auto

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  ankit.gupta

  

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  Posted 5 November 2018, 12:36 am EST

  Hi,

  Please find the answers to your questions below:

  1. You can use the C1Chart PointStyles to use the conditional coloring.

  //In the PointStyle Select event handler
  double val = Convert.ToDouble(c1Chart1.ChartGroups[1].ChartData[e.SeriesIndex].Y[e.PointIndex]);
  C1.Win.C1Chart.PointStyle ps = (C1.Win.C1Chart.PointStyle)sender;
  ps.SymbolStyle.Color = val > 0 ? Color.Green : Color.Red;
  e.Selected = true;
  
  

  To know more about PointStyles please refer to the following help file link:
  
  http://help.grapecity.com/componentone/NetHelp/c1chart2d/webframe.html#workingwithpointstyl.html

  2. To sync the Y and Y2 scale you can set the Min/Max values of both the axis as shown below:

  var y1 = c1Chart1.ChartArea.AxisY;
  var y2 = c1Chart1.ChartArea.AxisY2;
  double y1Max = Convert.ToDouble(y1.GetMax());
  double y2Max = Convert.ToDouble(y2.GetMax());
  double y1Min = Convert.ToDouble(y1.GetMin());
  double y2Min = Convert.ToDouble(y2.GetMin());
  y1.Max = y2.Max = Math.Max(y1Max,y2Max);
  y1.Min = y2.Min= Math.Min(y1Min, y2Min);
  

  Please refer to the attached sample for details.

  Regards,
  
  Ankit

  C1ChartPointStyles.zip