Stacked Bars

View Model

using System;
using LiveChartsCore.Kernel;

namespace ViewModelsSamples.StackedBars.Basic;

public class ViewModel
{
    public int[] Values1 { get; set; } =
        [3, 5, -3, 2, 5, -4, -2];

    public int[] Values2 { get; set; } =
        [4, 2, -3, 2, 3, 4, -2];

    public int[] Values3 { get; set; } =
        [-2, 6, 6, 5, 4, 3, -2];

    public Func<ChartPoint, string> Formatter { get; set; } =
        p => $"{p.Coordinate.PrimaryValue:N} ({p.StackedValue!.Share:P})";
}

XAML

<UserControl
    x:Class="WinUISample.StackedBars.Basic.View"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:lvc="using:LiveChartsCore.SkiaSharpView.WinUI"
    xmlns:vms="using:ViewModelsSamples.StackedBars.Basic"
    mc:Ignorable="d">

    <UserControl.DataContext>
        <vms:ViewModel/>
    </UserControl.DataContext>

    <lvc:CartesianChart>
        <lvc:CartesianChart.Series>
            <lvc:SeriesCollection>
                <lvc:XamlStackedColumnSeries
                    Values="{Binding Values1}"
                    ShowDataLabels="True"
                    YToolTipLabelFormatter="{Binding Formatter}"/>
                <lvc:XamlStackedColumnSeries
                    Values="{Binding Values2}"
                    ShowDataLabels="True"
                    YToolTipLabelFormatter="{Binding Formatter}"/>
                <lvc:XamlStackedColumnSeries
                    Values="{Binding Values3}"
                    ShowDataLabels="True"
                    YToolTipLabelFormatter="{Binding Formatter}"/>
            </lvc:SeriesCollection>
        </lvc:CartesianChart.Series>
    </lvc:CartesianChart>

</UserControl>

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