.NET MAUI中删除ListView项后显示异常的问题求助

显示所有笔记的初始界面：

删除第一条笔记后的界面：

最近开始用.NET MAUI开发，C#中的ObservableCollection列表已正确移除元素，但删除后剩余元素仅部分显示，例如仅第4个元素正常显示，其余仅显示空栏。

我的代码如下：

XAML代码 #

<VerticalStackLayout>
        <ScrollView>
            <StackLayout>


                <Grid>
                    <Grid.RowDefinitions>
                        <RowDefinition />
                    </Grid.RowDefinitions>
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition />
                        <ColumnDefinition />
                    </Grid.ColumnDefinitions>

                    <Image
                        Grid.Column="0"
                        Source="logo.png"
                        WidthRequest="150"
                        HorizontalOptions="Start"
                        VerticalOptions="Start"/>

                    <Label
                        TextColor="Black"
                        Grid.Column="1"
                        Text="TODO"
                        FontSize="35"
                        HorizontalOptions="Start" 
                        VerticalOptions="Start" 
                        Margin="23"/>


                </Grid>




                <Grid BackgroundColor="#24D4A3">
                        <Grid.RowDefinitions>
                            <RowDefinition />
                            <RowDefinition />
                        </Grid.RowDefinitions>
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition />
                            <ColumnDefinition />
                        </Grid.ColumnDefinitions>

                    <ListView 
                    Grid.ColumnSpan="2"
                    Grid.RowSpan="2"
                    RowHeight="100"
                    x:Name="listview">
                    <ListView.ItemTemplate>
                            <DataTemplate >
                            <ViewCell >

                                    <Grid BackgroundColor="#24D4A3">
                                        <Grid.RowDefinitions>
                                            <RowDefinition Height="auto"/>
                                        </Grid.RowDefinitions>
                                        <Grid.ColumnDefinitions>
                                            <ColumnDefinition Width="auto"/>
                                        </Grid.ColumnDefinitions>
                                        <Button BackgroundColor="#DEABF5"
                                            Text="{Binding Title}"  
                                            Clicked="onNoteSelected"
                                            BorderWidth="2"
                                            TextColor="Black"
                                            FontSize="28"
                                            Margin="20"
                                            CornerRadius="100"
                                            WidthRequest="350"
                                            HeightRequest="70"
                                            HorizontalOptions="Center"
                                            VerticalOptions="Start"/>


                                        <Button
                                            BindingContext="{Binding Id}"
                                            Clicked="ToDoSolved" 
                                            BorderWidth="2"
                                            BorderColor="Black"
                                            BackgroundColor="White"
                                            WidthRequest="45"
                                            HeightRequest="45"
                                            CornerRadius="35" 
                                            Margin="0,0,260,0" 
                                            />
                                    </Grid>
                                </ViewCell>
                            </DataTemplate>
                        </ListView.ItemTemplate>
                    </ListView>

                    <ImageButton  
                                Clicked="Settings"
                                Source="settings.png"
                                Grid.Row="0"
                                Grid.Column="2"
                                BorderColor="#2b3c3c" 
                                BorderWidth="0" 
                                BackgroundColor="#34A4EB" 
                                CornerRadius="35" 
                                HorizontalOptions="End" 
                                WidthRequest="70" 
                                HeightRequest="70" 
                                Margin="0,10, 10, 0" 
                                VerticalOptions="Start"/>
                        <ImageButton 
                                Clicked="CreateNote"
                                Source="add.png"
                                Grid.Row="1"
                                Grid.Column="2"
                                BorderColor="#2b3c3c" 
                                BorderWidth="0" 
                                BackgroundColor="#34A4EB" 
                                CornerRadius="35" 
                                HorizontalOptions="End" 
                                WidthRequest="70" 
                                HeightRequest="70" 
                                Margin="0,0,10,10" 
                                Padding="2,0,0,0"/>
                    </Grid>
            </StackLayout>
        </ScrollView>
    </VerticalStackLayout>

C#代码 #

public partial class MainPage : ContentPage
    { 

    private ObservableCollection<Note> notes = new ObservableCollection<Note>();
    public ObservableCollection<Note> Notes 
    {
        get { return notes; }
        set { notes = value; }
    }
    public MainPage()   
    {
        InitializeComponent();

        notes.Add(new Note(1, "My Note1", "I'm ugly"));
        notes.Add(new Note(2, "My Note2", "I'm short"));
        notes.Add(new Note(3, "My Note3", "I'm smart"));
        notes.Add(new Note(4, "My Note4", "I'm smart"));
        //notes.Add(new Note(6, "My Note6", "I'm smart"));
        //notes.Add(new Note(7, "My Note7", "I'm smart"));
        //notes.Add(new Note(8, "My Note8", "I'm smart"));
        //notes.Add(new Note(9, "My Note9", "I'm smart"));
        this.BindingContext= Notes;
        listview.ItemsSource= Notes;
        
    }

    private async void CreateNote(object sender, EventArgs e)
    {
        await Shell.Current.GoToAsync("//CreateNote");
    }

    private async void Settings(object sender, EventArgs e)
    {
        await Shell.Current.GoToAsync("//Settings");
    }

 

    private void ToDoSolved(object sender, EventArgs e)
    {
        Button button= (Button) sender ;
        
        var id = (int)button.BindingContext;
         
        var item = Notes.SingleOrDefault(x => x.Id == id);
        if (item != null) 
        {
            Notes.Remove(item);
            Console.WriteLine(id);
        }
    }

    async void onNoteSelected(object sender, EventArgs e)
    {
        Button button= (Button) sender ;

        var id = (int)button.BindingContext;

        //await Shell.Current.GoToAsync("NotePage" + id);
    }
}

恳请各位提供帮助 :)

内容的提问来源于stack exchange，提问作者Der Illuminate HD