using System.Windows.Forms; using LiveCharts; using LiveCharts.Wpf; namespace Winforms.Cartesian.MissingPoints { public partial class MissingPoint : Form { public MissingPoint() { InitializeComponent(); cartesianChart1.Series.Add(new LineSeries { Values = new ChartValues { 4, 5, 7, 8, double.NaN, 5, 2, 8, double.NaN, 6, 2 } }); } } }