我正在嘗試學習和理解 c# 中的功能區控件，尤其是數據綁定，但在實現 RibbonComboBox 時收到許多我無法解決的警告。我已設法刪除錯誤消息，但警告仍然存在。我該如何解決？相關文件如下所示，我刪除了無關信息以簡化它們。這是 XAML 文件 - MainWindow.xaml：<RibbonWindow x:Class="MyProject.MainWindow"        ...        xmlns:local="clr-namespace:MyProject"        xmlns:diag="clr-namespace:System.Diagnostics;assembly=WindowsBase"        mc:Ignorable="d"        Title="MyProject" Height="450" Width="800" x:Name="MyProjectControl" >    <Grid>        <Ribbon DockPanel.Dock="Top" x:Name="Ribbon">            <RibbonTab Header="Home" >                <RibbonGroup Header="Shapes" Width="160">                    <RibbonComboBox x:Name="cbShape" Height="Auto" Width="Auto" Label="Shape" VerticalAlignment="Center">                        <RibbonGallery x:Name="shapeComboBox" SelectedItem="{Binding Path=Shape, UpdateSourceTrigger=PropertyChanged, Mode=OneWay, diag:PresentationTraceSources.TraceLevel=High}" >                            <RibbonGalleryCategory x:Name="shapeList" ItemsSource="{Binding Path=Shape, Mode=OneWay}" />                        </RibbonGallery>                    </RibbonComboBox>                </RibbonGroup>            </RibbonTab>        </Ribbon>    </Grid></RibbonWindow>它背后的代碼 - MainWindow.xaml.cs：using System.Collections.Generic;using System.Windows.Controls.Ribbon;namespace MyProject{    public partial class MainWindow : RibbonWindow    {        public MainWindow()        {            InitializeComponent();            InitializeLists();            this.DataContext = new RibbonSettings();        }        private void InitializeLists()        {            List<string> MyShapes = new List<string>            {                "Square", "Circle", "Ellipse", "Triangle", "Pentagon"            };            shapeList.ItemsSource = MyShapes;        }    }}