Grouped And Stacked Bars

This web site builds the control from code behind but you could also grab it from the toolbox, this sample also uses a ViewModel to populate the properties of the control(s) in this sample.

sample image

View model

using LiveChartsCore;
using LiveChartsCore.Kernel.Sketches;
using LiveChartsCore.SkiaSharpView;

namespace ViewModelsSamples.StackedBars.Groups;

public class ViewModel
{
    public ISeries[] Series { get; set; } =
    [
        new StackedColumnSeries<int>
        {
            Values = [3, 5, 3],
            Stroke = null,
            StackGroup = 0 // mark
        },
        new StackedColumnSeries<int>
        {
            Values = [4, 2, 3],
            Stroke = null,
            StackGroup = 0 // mark
        },
        new StackedColumnSeries<int>
        {
            Values = [4, 6, 6],
            Stroke = null,
            StackGroup = 1 // mark
        },
        new StackedColumnSeries<int>
        {
            Values = [2, 5, 4],
            Stroke = null,
            StackGroup = 1 // mark
        }
    ];

    public ICartesianAxis[] XAxis { get; set; } = [
        new Axis
        {
            LabelsRotation = -15,
            Labels = ["Category 1", "Category 2", "Category 3"]
        }
    ];
}

Form code behind

using System.Windows.Forms;
using LiveChartsCore.SkiaSharpView.WinForms;
using ViewModelsSamples.StackedBars.Groups;

namespace WinFormsSample.StackedBars.Groups;

public partial class View : UserControl
{
    private readonly CartesianChart cartesianChart;

    public View()
    {
        InitializeComponent();
        Size = new System.Drawing.Size(50, 50);

        var viewModel = new ViewModel();

        cartesianChart = new CartesianChart
        {
            Series = viewModel.Series,
            XAxes = viewModel.XAxis,

            // out of livecharts properties...
            Location = new System.Drawing.Point(0, 0),
            Size = new System.Drawing.Size(50, 50),
            Anchor = AnchorStyles.Left | AnchorStyles.Right | AnchorStyles.Top | AnchorStyles.Bottom
        };

        Controls.Add(cartesianChart);
    }
}

Articles you might also find useful:

Cartesian chart control
Column series properties