WPF编程，Live Charts使用说明（40）——对称行（负堆积行）

前台：

using System;
using System.Windows.Controls;
using LiveCharts;
using LiveCharts.Wpf;
 
namespace Wpf.CartesianChart.NegativeStackedRow
{
    /// <summary>
    /// Interaction logic for NEgativeStackedRowExample.xaml
    /// </summary>
    public partial class NegativeStackedRowExample : UserControl
    {
        public NegativeStackedRowExample()
        {
            InitializeComponent();
 
            SeriesCollection = new SeriesCollection
            {
                new StackedRowSeries
                {
                    Title = "Male",
                    Values = new ChartValues<double> {.5, .7, .8, .8, .6, .2, .6}
                },
                new StackedRowSeries
                {
                    Title = "Female",
                    Values = new ChartValues<double> {-.5, -.7, -.8, -.8, -.6, -.2, -.6}
                }
            };
 
            Labels = new[] {"0-20", "20-35", "35-45", "45-55", "55-65", "65-70", ">70"};
            Formatter = value => Math.Abs(value).ToString("P");
            
            DataContext = this;
 
        }
 
        public SeriesCollection SeriesCollection { get; set; }
        public string[] Labels { get; set; }
        public Func<double, string> Formatter { get; set; }
 
    }
}

前台：

<UserControl x:Class="Wpf.CartesianChart.NegativeStackedRow.NegativeStackedRowExample"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:local="clr-namespace:Wpf.CartesianChart.NegativeStackedRow"
             xmlns:lvc="clr-namespace:LiveCharts.Wpf;assembly=LiveCharts.Wpf"
             mc:Ignorable="d" 
             d:DesignHeight="300" d:DesignWidth="300" d:DataContext="{d:DesignInstance local:NegativeStackedRowExample }">
    <Grid>
        <lvc:CartesianChart Series="{Binding SeriesCollection}">
            <lvc:CartesianChart.AxisX>
                <lvc:Axis LabelFormatter="{Binding Formatter}"></lvc:Axis>
            </lvc:CartesianChart.AxisX>
            <lvc:CartesianChart.AxisY>
                <lvc:Axis Title="Age Range" Labels="{Binding Labels}"></lvc:Axis>
            </lvc:CartesianChart.AxisY>
            <lvc:CartesianChart.DataTooltip>
                <lvc:DefaultTooltip SelectionMode="SharedYValues"></lvc:DefaultTooltip>
            </lvc:CartesianChart.DataTooltip>
        </lvc:CartesianChart>  
    </Grid>
</UserControl>