Let a new series use the secondary value axis on Chart starts to support in Spire.Presentation 2.2.1

We are glad to announce a new hotfix version of Spire.Presentation Pack 2.2.1 today. In this version, our Develop Team added a new feature to let a new series use the secondary value axis on chart. Please check the code snippet as below:

Code Snippet:

string outputFile = @"test.pptx";
Presentation presentaion = new Presentation();

IChart ch = presentaion.Slides[0].Shapes.AppendChart(ChartType.Column100PercentStacked, new RectangleF(10, 10, 300, 300));
ch.PrimaryValueAxis.ChartCrossType = ChartCrossesType.AxisCrossesAtZero;
ch.ChartTitle.TextProperties.Text = ChartCrossesType.Custom.ToString(); ;
ch.HasTitle = true;

ch.Series[0].UseSecondAxis = true;
presentaion.SaveToFile(outputFile, FileFormat.Pptx2010);

Free Trail to evaluate Spire.Presentation Pack 2.2.1 here:

http://www.e-iceblue.com/Download/download-presentation-for-net-now.html