I realize that even if I manage to display the Y2 labels, the scale itself is not applied.  

I guess my problem is how to specify which series apply to which axis (y or y2)

Hello Fred,

In that case you should have similar code. Please take a look how to implement different axis and assign each axis to desired series.

// Axis Y

AxisItem axisY = new AxisItem();

axisY.Extent = 20;

axisY.DataType = AxisDataType.Numeric;

axisY.Labels.ItemFormatString = "<DATA_VALUE:00.00>";

axisY.OrientationType = AxisNumber.Y_Axis;

axisY.LineColor = Color.Blue;

area.Axes.Add(axisY);

// Axis Y2

AxisItem axisY2 = new AxisItem();

axisY2.Extent = 20;

axisY2.DataType = AxisDataType.Numeric;

axisY2.Labels.ItemFormatString = "<DATA_VALUE:00.00>";

axisY2.OrientationType = AxisNumber.Y2_Axis;

axisY2.LineColor = Color.Blue;

area.Axes.Add(axisY2);

// Series 1

XYSeries series1 = new XYSeries();

series1.Label = "Year 2010";

series1.DataBind(dt, "MonthID", "2010", "Month");

series1.PEs.Add(new PaintElement(Color.Blue));

// Series 1

XYSeries series2 = new XYSeries();

series2.Label = "Year 2011";

series2.DataBind(dt, "MonthID", "2011", "Month");

series2.PEs.Add(new PaintElement(Color.Red));

ChartLayerAppearance myColumnLayer = new ChartLayerAppearance();

myColumnLayer.ChartType = ChartType.ScatterChart;

myColumnLayer.ChartArea = area;

myColumnLayer.Series.Add(series1);

myColumnLayer.AxisX = axisX;

myColumnLayer.AxisY = axisY;

ultraChart1.CompositeChart.Series.Add(series1);

this.ultraChart1.CompositeChart.ChartLayers.Add(myColumnLayer);

ChartLayerAppearance myColumnLayer2 = new ChartLayerAppearance();

myColumnLayer2.ChartType = ChartType.ScatterChart;

myColumnLayer2.ChartArea = area;

myColumnLayer2.AxisX = axisX;

myColumnLayer2.AxisY2 = axisY2;

myColumnLayer2.Series.Add(series2);

ultraChart1.CompositeChart.Series.Add(series2);

this.ultraChart1.CompositeChart.ChartLayers.Add(myColumnLayer2);

 Let me know if you have any questions.

Regards

what is the 

area.Axes.Add(axisY);

AREA property, it's a property of what

What if my data in like so

Does your method still applies ?

Hello Fred,

Could you please take a look at the attached sample and if you think that I didn`t reproduce your scenario, please feel free to modify this sample to reproduce your scenario and issue and revert it back to me. I`ll be glad ot research your issue.

Let me know if you have any questions

looked at your sample.. thanks.. very close i think

the problem remaining is that 2 columns will have huge numbers in the 10000 and the last one small numbers

So i would like first two to be on different scale (y) that last one (y1) so last column is not dwarfed by the scale

Here is the sample