WPF将列表绑定到多列ListBox

<ListBox ItemsSource="{Binding MyList}">
    <ListBox.ItemTemplate>
        <DataTemplate>
            <Grid>
                <Grid.ColumnDefinitions>
                   <ColumnDefinition Width="*"/>
                   <ColumnDefinition Width="*"/>
                </Grid.ColumnDefinitions>
                <TextBlock Text="{Binding Column1}" Grid.Column="0"/>
                <TextBlock Text="{Binding Column2}" Grid.Column="1"/>
            </Grid>
        </DataTemplate>
    </ListBox.ItemTemplate>
</ListBox>

public partial class MainWindow : Window
{
    public List<MyItem> MyList { get; set; }

    public MainWindow()
    {
        InitializeComponent();
        MyList = new List<MyItem>
        {
            new MyItem { Column1 = "Item 1", Column2 = "Value 1" },
            new MyItem { Column1 = "Item 2", Column2 = "Value 2" },
            new MyItem { Column1 = "Item 3", Column2 = "Value 3" }
        };
        DataContext = this;
    }
}

public class MyItem
{
    public string Column1 { get; set; }
    public string Column2 { get; set; }
}