如何在绑定到C# WPF中枚举的数据网格中填充组合框

public enum ColorEnum
{
    Red,
    Green,
    Blue
}

public class MainViewModel : INotifyPropertyChanged
{
    private ColorEnum selectedColor;

    public ColorEnum SelectedColor
    {
        get { return selectedColor; }
        set
        {
            selectedColor = value;
            OnPropertyChanged(nameof(SelectedColor));
        }
    }

    public IEnumerable<ColorEnum> ColorOptions
    {
        get { return Enum.GetValues(typeof(ColorEnum)).Cast<ColorEnum>(); }
    }

    public event PropertyChangedEventHandler PropertyChanged;

    protected virtual void OnPropertyChanged(string propertyName)
    {
        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
    }
}

<Window x:Class="YourNamespace.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:local="clr-namespace:YourNamespace"
        Title="MainWindow" Height="450" Width="800">
    <Window.DataContext>
        <local:MainViewModel />
    </Window.DataContext>
    <Grid>
        <DataGrid ItemsSource="{Binding ColorOptions}" AutoGenerateColumns="False">
            <DataGrid.Columns>
                <DataGridTemplateColumn Header="Color">
                    <DataGridTemplateColumn.CellTemplate>
                        <DataTemplate>
                            <ComboBox SelectedItem="{Binding SelectedColor, Mode=TwoWay}"
                                      ItemsSource="{Binding DataContext.ColorOptions, RelativeSource={RelativeSource AncestorType=Window}}">
                            </ComboBox>
                        </DataTemplate>
                    </DataGridTemplateColumn.CellTemplate>
                </DataGridTemplateColumn>
            </DataGrid.Columns>
        </DataGrid>
    </Grid>
</Window>