Hi Jacky,

The following code snippet shows how to achieve these tasks:

   NChart chart = nChartControl1.Charts[0];

   NBarSeries bar = new NBarSeries();
   bar.Values.Add(10);
   bar.Values.Add(20);
   bar.Values.Add(30);
   chart.Series.Add(bar);

   // setting axis min to 15
   chart.Axis(StandardAxis.PrimaryY).View = new NRangeAxisView(new NRange1DD(15, 0), true, false);

   // turning off tick rounding
   NStandardScaleConfigurator scaleY = chart.Axis(StandardAxis.PrimaryY).ScaleConfigurator as NStandardScaleConfigurator;
   scaleY.RoundToTickMin = false;
   scaleY.RoundToTickMax = false;

   // getting axis range
   nChartControl1.Document.Calculate();
   nChartControl1.Document.RecalcLayout(nChartControl1.View.Context);

   NRange1DD viewRange = chart.Axis(StandardAxis.PrimaryY).ViewRange;

Let us know if you meet any problems.

When I'm using auto scale in the chart, how can i get the the Range Min/Max?

or Can I set Y axis minimum only ? (maximum value will be dynamic)

thanks,

_jacky