internal partial class ChartView
  {
   public ChartView()
   {
_lines = new NLineSeries[Vm.GraphOptions.Count];
    _axis = new NAxis[Vm.GraphOptions.Count];

CreateChart();

t = new DispatcherTimer {Interval = TimeSpan.FromSeconds(1)};
    t.Tick += (s, e) =>
    {
      try
      {
       GenerateLabels();
      
       for (var i = 0; i < Vm.GraphOptions.Count; i++)
       {
        _lines[i].Visible = Vm.GraphOptions[i].IsChecked;
        _axis[i].Visible = Vm.GraphOptions[i].IsChecked;
       }

       NChartControl1.Refresh();
      }
      catch (Exception ex)
      {
       SystemLog.WriteLine(ex);
      }
    };
    t.Start();
}




public void CreateChart()
   {
    NChartControl1.Charts.Clear();
    NChartControl1.Charts.Add(new NCartesianChart());
    _chart = (NCartesianChart)NChartControl1.Charts[0];
    NChartControl1.DataBindingManager.EnableDataBinding = true;

    NChartControl1.Legends.Clear();
    NChartControl1.BackgroundStyle.FrameStyle.Visible = false;

    _chart.DockMode = PanelDockMode.Fill;
    _chart.BoundsMode = BoundsMode.Stretch;
    _chart.Padding = new NMarginsL(0);
    _chart.Margins = new NMarginsL(5, 10, 5, 5);

    _chart.Axis(StandardAxis.PrimaryY).Visible = false;
    _chart.Axis(StandardAxis.SecondaryY).Visible = false;
    _chart.Axis(StandardAxis.PrimaryX).ScaleConfigurator = new NLinearScaleConfigurator();

    var linearScale = new NLinearScaleConfigurator(); ;
    linearScale.RulerStyle.BorderStyle.Color = Color.White;

    _chart.Axis(StandardAxis.PrimaryY).ScaleConfigurator = linearScale;
    _chart.Axis(StandardAxis.SecondaryY).ScaleConfigurator = linearScale;

    int i = 0;
    foreach (var cr in Vm.GraphOptions)
    {
      var axis = CreateAxis(_chart, true, 0, 100, 0, GetCurveMax(cr.DisplayName), cr.DisplayName, GetCurveColor(cr.DisplayName));
      var line = CreateLineSeries(GetCurveColor(cr.DisplayName));
      _chart.Series.Add(line);
      line.DisplayOnAxis(StandardAxis.PrimaryY, false);
      line.DisplayOnAxis(StandardAxis.SecondaryY, false);
      line.DisplayOnAxis(axis.AxisId, true);
      _axis[i] = axis;
      _lines[i] = line;
      i++;
    }

    GenerateLabels();

    BindingChartToData();

    var sc = (NLinearScaleConfigurator)_chart.Axis(StandardAxis.PrimaryX).ScaleConfigurator;
    sc.Title.Text = "min";
    sc.MajorGridStyle.SetShowAtWall(ChartWallType.Back, true);
    sc.MajorGridStyle.LineStyle.CustomPattern = 0x5555;
    sc.MajorGridStyle.LineStyle.Factor = 2;
    sc.MajorGridStyle.LineStyle.Color = Color.White; // Color.Gray;
    sc.MajorGridStyle.LineStyle.Width = new NLength(0.5f, NGraphicsUnit.Point);
    sc.MajorGridStyle.LineStyle.Pattern = LinePattern.Custom;

    NChartControl1.Refresh();
   }


private static NLineSeries CreateLineSeries(Color color)
   {
    var line = new NLineSeries
    {
      UseXValues = true,
      DataLabelStyle = { Visible = false },
      BorderStyle = { Color = color, Width = new NLength(2) },
      SamplingMode = SeriesSamplingMode.Enabled,

    };
    return line;
   }


private static NAxis CreateAxis(NCartesianChart chart, bool createLevel, float beginPercent, float endPercent, double min, double max, string title, Color color)
   {
    NAxis axis = ((NCartesianAxisCollection)chart.Axes).AddCustomAxis(AxisOrientation.Vertical, AxisDockZone.FrontLeft);
    axis.Visible = true;
    axis.Anchor.BeginPercent = beginPercent;
    axis.Anchor.EndPercent = endPercent;
    ((NDockAxisAnchor)axis.Anchor).CreateNewZoneLevel = createLevel;

    axis.View = new NRangeAxisView(new NRange1DD(min, max), true, true);

    var linearScale = new NLinearScaleConfigurator();
    linearScale.MajorTickMode = MajorTickMode.CustomTicks;
    linearScale.CustomMajorTicks.Add(min);
    linearScale.CustomMajorTicks.Add(max);
    linearScale.Title.Text = title;
    linearScale.Title.TextStyle.FillStyle = new NColorFillStyle(color);
    linearScale.RulerStyle.BorderStyle.Color = color;
    linearScale.InnerMajorTickStyle.LineStyle.Color = color;
    linearScale.OuterMajorTickStyle.LineStyle.Color = color;
    linearScale.LabelStyle.TextStyle.FillStyle = new NColorFillStyle(color);

    linearScale.CustomStep = max / 10;
    linearScale.MajorTickMode = MajorTickMode.CustomStep;
    linearScale.MajorGridStyle.SetShowAtWall(ChartWallType.Back, true);
    linearScale.MajorGridStyle.LineStyle.CustomPattern = 0x5555;
    linearScale.MajorGridStyle.LineStyle.Factor = 2;
    linearScale.MajorGridStyle.LineStyle.Color = Color.White; // Color.Gray;
    linearScale.MajorGridStyle.LineStyle.Width = new NLength(0.5f, NGraphicsUnit.Point);
    linearScale.MajorGridStyle.LineStyle.Pattern = LinePattern.Custom;

    axis.ScaleConfigurator = linearScale;

    return axis;
   }



private void GenerateLabels()
   {
    try
    {
      _scaleConfiguratorX = (NLinearScaleConfigurator) _chart.Axis(StandardAxis.PrimaryX).ScaleConfigurator;

      double start = 0.0;
      double end = 0.0;

      lock (LockTimeBasedPoints)
      {
       var count = TimeBasedPoints.Rows.Count - 1;
       if (count <= 0) return;
       end = double.Parse(TimeBasedPoints.Rows[count]["X"].ToString());
      }

      _scaleConfiguratorX.MajorTickMode = MajorTickMode.CustomStep;
      var step = end/20;
      if (step < 1) step = 1;
      step = Math.Round(step, 0);
      _scaleConfiguratorX.CustomStep = step;
    }
    catch (Exception ex)
    {
      SystemLog.WriteLine(ex);
    }

   }



private void BindingChartToData()
   {
    int i = 0;
    foreach (var cr in Vm.GraphOptions)
    {
      NChartControl1.DataBindingManager.AddBinding(0, i, "XValues", TimeBasedPoints, "X");
      NChartControl1.DataBindingManager.AddBinding(0, i, "Values", TimeBasedPoints, GetMinName(cr.DisplayName));
      i++;
    }
    NChartControl1.DataBindingManager.UpdateChartControl();
   }

}