If in your sample about chart series we display
only 3 points, the resulting picture is wrong
(See attach)
// Samples\2.0\Chart Series\CustomModel\CSCustomModel.aspx.cs
...
protected void InitializeChartData()
{
ChartSeries series = this.ChartWebControl1.Model.NewSeries("Simple Series");
// 3 POINTS
series.SeriesIndexedModelImpl = new ArrayModel(new double[] { 122, 150, 332 });
...
this.ChartWebControl1.PrimaryYAxis.LabelsImpl = new LabelModel(new string[] { "Mercdes", "BMW", "Jaguar" });
this.ChartWebControl1.PrimaryYAxis.ValueType = ChartValueType.Custom;
Chart CustomModelSample.zip