WPF DataGrid交错行颜色

代码如下

<!--  AutoGenerateColumns="False"可以避免出现重复列  -->
<!--  CanUserAddRows="False"去除最后一行空白行  -->
<DataGrid
 x:Name="datagrid"
 AlternationCount="2"
 AutoGenerateColumns="False"
 CanUserAddRows="False">
 <DataGrid.RowStyle>
 <Style  TargetType="DataGridRow">
            <Style.Triggers>
                <!--  隔行换色  -->
                <Trigger Property="AlternationIndex" Value="0">
                    <Setter Property="Background" Value="Yellow" />
                </Trigger>
                <Trigger Property="AlternationIndex" Value="1">
                    <Setter Property="Background" Value="Blue" />
                </Trigger>
            </Style.Triggers>
        </Style>
    </DataGrid.RowStyle>
    <DataGrid.Columns>
        <DataGridTextColumn Binding="{Binding  Name}" Header="姓名" />
        <DataGridTextColumn Binding="{Binding Age}" Header="年龄" />
        <DataGridTextColumn Binding="{Binding Address}" Header="地址" />
    </DataGrid.Columns>
</DataGrid>

/// <summary>
    /// Interaction logic for MainWindow.xaml
/// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            List<Person> list = new List<Person>
            {
                new Person { Name = "张三", Age = 22, Address = "11" },
                new Person { Name = "李四", Age = 23, Address = "22" },
                new Person { Name = "王五", Age = 24, Address = "33" }
            };
            datagrid.ItemsSource = list;
        }
    }

    public class Person
    {
        public string Name { get; set; } = "";

        public int Age { get; set; } = 0;

        public string Address { get; set; } = "";
    }

结果如下：