WPF将DataGridComboBoxColumn绑定到ComboBox的SelectedItem

<Window x:Class="WpfApp.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="450" Width="800">
    <Window.Resources>
        <ObjectDataProvider x:Key="ColorsProvider"
                            ObjectType="{x:Type sys:String}"
                            MethodName="GetValues">
            <ObjectDataProvider.MethodParameters>
                <x:Type Type="sys:String[]" />
            </ObjectDataProvider.MethodParameters>
        </ObjectDataProvider>
    </Window.Resources>
    <Grid>
        <DataGrid x:Name="dataGrid" AutoGenerateColumns="False">
            <DataGrid.Columns>
                <DataGridComboBoxColumn Header="Color" 
                                        SelectedValueBinding="{Binding SelectedItem, ElementName=comboBox}"
                                        ItemsSource="{Binding Source={StaticResource ColorsProvider}}" />
            </DataGrid.Columns>
        </DataGrid>
        <ComboBox x:Name="comboBox" SelectionChanged="ComboBox_SelectionChanged">
            <ComboBox.ItemsSource>
                <CompositeCollection>
                    <CollectionContainer Collection="{Binding Source={StaticResource ColorsProvider}}" />
                </CompositeCollection>
            </ComboBox.ItemsSource>
        </ComboBox>
    </Grid>
</Window>

using System.Windows;

namespace WpfApp
{
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            dataGrid.ItemsSource = new[] { new { Color = "Red" }, new { Color = "Blue" }, new { Color = "Green" } };
        }

        private void ComboBox_SelectionChanged(object sender, System.Windows.Controls.SelectionChangedEventArgs e)
        {
            // Handle selection change if needed
        }
    }
}