LightningChart Support Forums

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using System;
using System.Windows;
using System.Windows.Threading;

using Arction.WPF.LightningChartUltimate;
using Arction.WPF.LightningChartUltimate.SeriesXY;

namespace ArrayPoints
{
    public partial class MainWindow : Window
    {
        private LightningChartUltimate m_chart;
        private PointLineSeries m_pls;

        private DispatcherTimer dt;
        private Random rand = new Random();

        SeriesPoint[] sp;

        public MainWindow()
        {
            InitializeComponent();

            m_chart = new LightningChartUltimate();

            m_chart.BeginUpdate();
            m_chart.ViewXY.Margins = new Thickness(60, 30, 20, 40);
            m_chart.ViewXY.XAxes[0].ValueType = AxisValueType.Number;
            m_pls = new PointLineSeries(m_chart.ViewXY, m_chart.ViewXY.XAxes[0], m_chart.ViewXY.YAxes[0]);
            m_chart.ViewXY.PointLineSeries.Add(m_pls);
            sp = new SeriesPoint[10];
            for (int ii = 0; ii < 10; ++ii)
            {
                sp[ii].X = (double)ii;
                sp[ii].Y = (double)rand.Next(0, 100) / 10.0;
            }
            m_pls.Points = sp;      // Update points !
            m_chart.EndUpdate();

            this.chart1.Children.Add(m_chart);

            dt = new DispatcherTimer() { Interval = new TimeSpan(0, 0, 0, 0, 100) };
            dt.Tick += (s, e) =>
            {
                for (int ii = 0; ii < 10; ++ii)
                {
                    sp[ii].Y = (double)rand.Next(0, 100) / 10.0;
                }
                m_chart.BeginUpdate();
                //m_pls.Points = null;
                m_pls.Points = sp;      // Update points !
                m_chart.EndUpdate();
            };
            dt.Start();
        }
    }
}

Code: Select all

m_pls.ClearValue(PointLineSeries.PointsProperty);