NChart chart = nChartControl1.Charts[0];

   NBarSeries bar = new NBarSeries();
   bar.DataLabelStyle.Visible = false;

   bar.Values.Add(10);
   bar.Values.Add(20);

   chart.Series.Add(bar);

   NOrdinalScaleConfigurator ordinalScale = (NOrdinalScaleConfigurator)chart.Axis(StandardAxis.PrimaryX).ScaleConfigurator;

   ordinalScale.LabelStyle.TextStyle.TextFormat = TextFormat.XML;
   ordinalScale.AutoLabels = false;

   ordinalScale.Labels.Add("Q3<br/>2017");
   ordinalScale.Labels.Add("Q4<br/>2017");

   NChart chart = nChartControl1.Charts[0];

   NLineSeries line = new NLineSeries();
   line.DataLabelStyle.Visible = false;
   line.UseXValues = true;

   Random rand = new Random();
   DateTime dt = DateTime.Now;

   for (int i = 0; i < 10; i++)
   {
    line.Values.Add(10);
    line.XValues.Add(dt.ToOADate());
    dt = dt.AddMonths(3);
   }

   chart.Series.Add(line);

   NDateTimeScaleConfigurator dateTimeScale = new NDateTimeScaleConfigurator();
   dateTimeScale.LabelStyle.TextStyle.TextFormat = TextFormat.XML;
   dateTimeScale.LabelValueFormatter = new NDateTimeValueFormatter("#Q<br/>yy");
   chart.Axis(StandardAxis.PrimaryX).ScaleConfigurator = dateTimeScale;

   dateTimeScale.MajorTickMode = MajorTickMode.CustomStep;
   dateTimeScale.EnableUnitSensitiveFormatting = false;
   dateTimeScale.CustomStep = new NDateTimeSpan(3, NDateTimeUnit.Month);