WPF沒有系統的Chart控制元件，因此要使用第三方的chart控制元件庫

1、在Nuget中新增DotNetProjects.DataVisualization.Toolkit。

Chart控制元件結構

餅狀圖

效果

xaml

<Window x:Class="testControl.MainWindow"
        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:local="clr-namespace:testControl"
        xmlns:chart="clr-namespace:System.Windows.Controls.DataVisualization.Charting;assembly=DotNetProjects.DataVisualization.Toolkit"
 
 xmlns:visualizationToolkit="clr-namespace:System.Windows.Controls.DataVisualization;assembly=DotNetProjects.DataVisualization.Toolkit"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Window.Resources>
        <Style x:Key="PieChartLegendItemStyle" TargetType
 
="{x:Type chart:LegendItem}">
            <Setter Property="IsTabStop" Value="False" />
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type chart:LegendItem}">
                        <Border Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}">
                            <StackPanel Orientation="Horizontal">
                                <Rectangle Width="8" Height="8" Fill="{Binding Background}" Stroke="{Binding BorderBrush}" StrokeThickness="0" Margin="0,0,3,0" />
                                <visualizationToolkit:Title Content="{TemplateBinding Content}" />
                            </StackPanel>
                        </Border>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
        <Style x:Key="PieSeriesStyle1" TargetType="{x:Type chart:PieSeries}">
            <Setter Property="IsTabStop" Value="False"/>
            <Setter Property="Margin" Value="0"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type chart:PieSeries}">
                        <Canvas x:Name="PlotArea" Margin="0" />
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
    </Window.Resources>
    <Grid>

        <!--表格-->
        <chart:Chart  Height="271" Name="chart1" Width="379"  BorderThickness="0" >
            <!--表格的LegEnd-->
                <chart:Chart.LegendStyle>
                    <Style TargetType="visualizationToolkit:Legend">
                        <Setter Property="Visibility" Value="Collapsed"/>
                        <Setter Property="Width" Value="0"/>
                        <Setter Property="Height" Value="0"/>
                    </Style>
                </chart:Chart.LegendStyle>

            <!--表格的繪圖區域 -->
            <chart:Chart.PlotAreaStyle>
                    <Style TargetType="Grid">
                        <Setter Property="Panel.Background" Value="Transparent"/>
                    </Style>
                </chart:Chart.PlotAreaStyle>

            <!--表格的序列-->
            <chart:Chart.Series >
                <!--餅狀圖-->
                <chart:PieSeries   ItemsSource="{Binding}"
                    DependentValuePath="Value"
                    IndependentValuePath="Key"
                    Title="Pet Preference" IsSelectionEnabled="True"   />
            </chart:Chart.Series>
        </chart:Chart>
 
    </Grid>
</Window>

C# 程式碼

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Controls.DataVisualization.Charting;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace testControl
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            chart1.DataContext = new KeyValuePair<string, int>[] {
                                    new KeyValuePair<string, int>("Dog", 30),
                                    new KeyValuePair<string, int>("Cat", 25),
                                    new KeyValuePair<string, int>("Rat", 5),
                                    new KeyValuePair<string, int>("Hampster", 8),
                                    new KeyValuePair<string, int>("Rabbit", 12) };
        }
      
    }


}