Secondary Y axis or no ?

[scott]

Telerik.WinControls.UI.ChartSeries series1 = new LineSeries();
series1.DataPoints.Add(new CategoricalDataPoint(1, "9/24"));
series1.DataPoints.Add(new CategoricalDataPoint(2, "9/25"));
series1.DataPoints.Add(new CategoricalDataPoint(3, "9/26"));
series1.DataPoints.Add(new CategoricalDataPoint(4, "9/27"));

Telerik.WinControls.UI.ChartSeries series2 = new BarSeries();
series2.DataPoints.Add(new CategoricalDataPoint(6, "9/24"));
series2.DataPoints.Add(new CategoricalDataPoint(7, "9/25"));
series2.DataPoints.Add(new CategoricalDataPoint(8, "9/26"));
series2.DataPoints.Add(new CategoricalDataPoint(9, "9/27"));

chart.Series.Add(series1);
chart.Series.Add(series2);

I'm trying to get a winforms application to use a secondary y axis.  A thread from 2008 seems to indicate this is possible, and a thread from 2011 seems to indicate that its not possible.

Can I have a secondary Y axis in a winforms app?  If so, how...



Thank you -
Scott

[Stefan]

Hi Scott,

Thank you for writing.

I am not sure which threads are you referring too, however, both the obsolete RadChart and the new RadChartView controls support this functionality. I would suggest that you go with the RadChartView control. Here is how to implement second Y axis in it:

public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();

            LinearAxis vAxis1 = new LinearAxis();
            vAxis1.AxisType = AxisType.Second;
            vAxis1.HorizontalLocation = AxisHorizontalLocation.Left;

            LineSeries series1 = new LineSeries();
            series1.VerticalAxis = vAxis1;
            series1.DataPoints.Add(new CategoricalDataPoint(1, "9/24"));
            series1.DataPoints.Add(new CategoricalDataPoint(2, "9/25"));
            series1.DataPoints.Add(new CategoricalDataPoint(3, "9/26"));
            series1.DataPoints.Add(new CategoricalDataPoint(4, "9/27"));

            LinearAxis vAxis2 = new LinearAxis();
            vAxis2.HorizontalLocation = AxisHorizontalLocation.Left;
            vAxis2.AxisType = AxisType.Second;

            BarSeries series2 = new BarSeries();
            series2.VerticalAxis = vAxis2;
            series2.DataPoints.Add(new CategoricalDataPoint(6, "9/24"));
            series2.DataPoints.Add(new CategoricalDataPoint(7, "9/25"));
            series2.DataPoints.Add(new CategoricalDataPoint(8, "9/26"));
            series2.DataPoints.Add(new CategoricalDataPoint(9, "9/27"));

            this.radChartView1.Series.AddRange(series1, series2);
        }
    }

 
Please note that it is important that you set up the axes prior adding the series to the control.

I hope this helps.
 
Regards,
Stefan
the Telerik team

[scott]

Thank you, Stefan...