Line chart is one of the most commonly used charts on all platforms across many industries. This example demonstrates how to create a Xamarin Line Chart in code. SciChart Xamarin Line Chart supports millions of points out of the box*, and is suitable for use in real-time scientific, medical and trading applications.

*depending on available memory and device.

Documentation on how to use this type in iOS here: The iOS Line Chart Documentation.
Documentation on how to use this type Android here: The Android Line Chart Documentation.

See also how to add series in Xamarin from our tutorials for Xamarin iOS and Xamarin Android.

Tip!
You can be very flexible and change the Line appearance as follows:

• Changing its’ color and thickness
• Customize by adding either predefined or custom data-point markers on a line series using the PointMarker API.

// LineChartViewController.cs (Xamarin.iOS)

using System;
using SciChart.Examples.Demo.Data;
using SciChart.Examples.Demo.Fragments.Base;
using SciChart.iOS.Charting;
using Xamarin.Examples.Demo.iOS.Resources.Layout;
using Xamarin.Examples.Demo.iOS.Views.Base;

namespace Xamarin.Examples.Demo.iOS.Views.Examples
{
    [ExampleDefinition("Line Chart", description: "Creates a simple line chart", icon: ExampleIcon.LineChart)]
    public class LineChartViewController : ExampleBaseViewController
    {
        public override Type ExampleViewType => typeof(SingleChartViewLayout);

        public SCIChartSurface Surface => ((SingleChartViewLayout)View).SciChartSurface;

        protected override void InitExample()
        {
            var xAxis = new SCINumericAxis { GrowBy = new SCIDoubleRange(0.1, 0.1), VisibleRange = new SCIDoubleRange(1.1, 2.7) };
            var yAxis = new SCINumericAxis { GrowBy = new SCIDoubleRange(0.1, 0.1) };

            var fourierSeries = DataManager.Instance.GetFourierSeries(1.0, 0.1);
            var dataSeries = new XyDataSeries<double, double>();
            dataSeries.Append(fourierSeries.XData, fourierSeries.YData);

            var renderSeries = new SCIFastLineRenderableSeries { DataSeries = dataSeries, StrokeStyle = new SCISolidPenStyle(0xFF279B27, 2f) };

            using (Surface.SuspendUpdates())
            {
                Surface.XAxes.Add(xAxis);
                Surface.YAxes.Add(yAxis);
                Surface.RenderableSeries.Add(renderSeries);

                Surface.ChartModifiers = new SCIChartModifierCollection
                {
                    new SCIZoomPanModifier(),
                    new SCIPinchZoomModifier(),
                    new SCIZoomExtentsModifier()
                };
            }
        }
    }
}

// LineChartFragment.cs (Xamarin.Android)

using SciChart.Charting.Model;
using SciChart.Charting.Model.DataSeries;
using SciChart.Charting.Modifiers;
using SciChart.Charting.Visuals;
using SciChart.Charting.Visuals.Axes;
using SciChart.Charting.Visuals.RenderableSeries;
using SciChart.Data.Model;
using SciChart.Drawing.Common;
using SciChart.Examples.Demo.Data;
using SciChart.Examples.Demo.Fragments.Base;
using Xamarin.Examples.Demo.Droid.Extensions;
using Xamarin.Examples.Demo.Droid.Fragments.Base;

namespace Xamarin.Examples.Demo.Droid.Fragments.Examples
{
    [ExampleDefinition("Line Chart", description:"Create a simple Line Chart", icon: ExampleIcon.LineChart)]
    public class LineChartFragment : ExampleBaseFragment
    {
        public SciChartSurface Surface => View.FindViewById<SciChartSurface>(Resource.Id.chart);

        public override int ExampleLayoutId => Resource.Layout.Example_Single_Chart_Fragment;

        protected override void InitExample()
        {
            var xAxis = new NumericAxis(Activity) {GrowBy = new DoubleRange(0.1, 0.1), VisibleRange = new DoubleRange(1.1, 2.7)};
            var yAxis = new NumericAxis(Activity) {GrowBy = new DoubleRange(0.1, 0.1)};

            var fourierSeries = DataManager.Instance.GetFourierSeries(1.0, 0.1);
            var dataSeries = new XyDataSeries<double, double>();
            dataSeries.Append(fourierSeries.XData, fourierSeries.YData);

            var renderableSeries = new FastLineRenderableSeries {DataSeries = dataSeries, StrokeStyle = new SolidPenStyle(0xFF279B27, 2f.ToDip(Activity))};

            using (Surface.SuspendUpdates())
            {
                Surface.XAxes.Add(xAxis);
                Surface.YAxes.Add(yAxis);
                Surface.RenderableSeries.Add(renderableSeries);
                Surface.ChartModifiers = new ChartModifierCollection
                {
                    new ZoomPanModifier(),
                    new PinchZoomModifier(),
                    new ZoomExtentsModifier(),
                };
            }
        }
    }
}

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