HowTo: Bind Second YAxis to the second Value of a DataPoint

[Manfred]

Hi there,

I have the following:

foreach (KeyValuePair<string, List<OperationData>> opd in _viewModel.OperationDataDictionary)
      {
        DataSeries ds = new DataSeries();
        DataSeries ds1 = new DataSeries();
        ds.Definition = ProfitChart.DefaultSeriesDefinition;
        ds.LegendLabel = opd.Key.ToString();
        ds1.Definition = ProfitChart.DefaultSeriesDefinition;
        AxisY ay = new AxisY();
        ay.AxisName = "WindSpeed";
        ay.Title = "m/s";
        ProfitChart.DefaultView.ChartArea.AdditionalYAxes.Add(ay);


        foreach (var elem in opd.Value.ToList())
        {
          string _zeit = elem.OD_DATE.Value.Hour + ":" + elem.OD_DATE.Value.Minute;
          ds.Add(new DataPoint(_zeit, Convert.ToDouble(elem.LEISTNG_MIT)));
          ds1.Add(new DataPoint(_zeit, Convert.ToDouble(elem.WINDGES_MIT)));

        }
        ProfitChart.DefaultView.ChartArea.DataSeries.Add(ds);
        ProfitChart.DefaultView.ChartArea.DataSeries.Add(ds1);
        SeriesMapping seriesMapping = new SeriesMapping();
        seriesMapping.CollectionIndex = 1;
        seriesMapping.LegendLabel = "WindSpeed";
        seriesMapping.SeriesDefinition = new LineSeriesDefinition();
        seriesMapping.SeriesDefinition.ShowItemLabels = false;
        seriesMapping.ItemMappings.Add(new ItemMapping("YValue", DataPointMember.YValue));
        ProfitChart.SeriesMappings.Add(seriesMapping);

      }

My Axis appears, but the Values are not bound to the elem.WINDGES_MIT-Value, my Chart looks like attached.
How can I bound my Windspeed to the second YAxis?

Best Regards
Manfred

[Giuseppe]

Hello Manfred,

Check this example here -- the AxisY.AxisName property must match with the respective SeriesDefinition.AxisName property in order to associate the series with one of the secondary axes.

Hope this helps.


Greetings,
Giuseppe
the Telerik team