如何在使用上下文菜单时更改datagrid WPF C#中选定行的字体颜色

<Window.Resources>
    <Style TargetType="DataGridRow">
        <Style.Triggers>
            <Trigger Property="IsSelected" Value="True">
                <Setter Property="Foreground" Value="Red" />
            </Trigger>
        </Style.Triggers>
    </Style>
</Window.Resources>

private void ContextMenu_Opened(object sender, RoutedEventArgs e)
{
    // 获取选定的行
    DataGridRow selectedRow = YourDataGrid.ItemContainerGenerator.ContainerFromItem(YourDataGrid.SelectedItem) as DataGridRow;

    // 更改选定行的字体颜色
    if (selectedRow != null)
    {
        selectedRow.Foreground = Brushes.Blue;
    }
}

<ContextMenu Opened="ContextMenu_Opened">
    <!-- 上下文菜单的内容 -->
</ContextMenu>