创建ContentViews时，请将其视为ContentPage中的内容。因此它应该依赖于ContentPage的ViewModel，而不是拥有自己的ViewModel或绑定到自身。我认为，如果你的ContentView需要自己的视图模型，你就在某个地方犯了一个设计错误。但这是个见仁见智的问题。
因此，请删除指向此的BindingContext，并将控件所需的所有逻辑从控件所属的View中移到ViewModel中的数据和属性上。你没有给我们一个完整的代码结构，所以我不能告诉你我认为它应该是什么。如果你想使用bindnig并指向你自己的代码，你可以使用引用，比如{Binding MessageText, Source={x:Reference ThisView}}，其中ThisView是你拥有的Control的x:Name。

好了，我认为问题要么出在视图模型中绑定的方式上，要么出在conentView.xaml中没有添加

BindingContext="{x:Reference this}"

在contentView in my case网格中的根元素上

<ContentView xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Name="this"
             x:Class="MedMark.Components.PagingFunctionality">

    <Grid BindingContext="{x:Reference this}" ColumnDefinitions="50, auto, 50" Grid.Column="1" HorizontalOptions="End">

您可以看到这是实际的内容视图，与我读到的应该绑定到内容视图的绑定上下文相反，我仍然这样做了，并且它按预期的ContentView.xaml.cs工作

public partial class PagingFunctionality : ContentView
{
    public PagingFunctionality()
    {
        InitializeComponent();
        Content.BindingContext = this;
    }
}

好了，现在我只是粘贴一些代码，作为其他人（或我未来的自己）的模板：D
ContentView.xaml.cs

public partial class PagingFunctionality : ContentView
{
    public PagingFunctionality()
    {
        InitializeComponent();
        Content.BindingContext = this;
    }

    public static readonly BindableProperty TotalPagesProperty = BindableProperty.Create(nameof(TotalPages), typeof(int), typeof(PagingFunctionality), 0,
        BindingMode.OneWay, propertyChanged: TotalPagesChanged);

    public static readonly BindableProperty CurrentPageProperty = BindableProperty.Create(nameof(CurrentPage), typeof(int), typeof(PagingFunctionality), 0,
        BindingMode.TwoWay, propertyChanged: CurrentPageChanged);

    private static void TotalPagesChanged(BindableObject bindable, object oldValue, object newValue)
    {
        var view = bindable as PagingFunctionality;
        view.NotifyPagingDetails();
    }

    private static void CurrentPageChanged(BindableObject bindable, object oldValue, object newValue)
    {
        var view = bindable as PagingFunctionality;
        view.NotifyPagingDetails();
    }

    public int TotalPages 
    { 
        get => (int)GetValue(TotalPagesProperty);
        set => SetValue(TotalPagesProperty, value);
    }

    public int CurrentPage
    {
        get => (int)GetValue(CurrentPageProperty);
        set => SetValue(CurrentPageProperty, value);
    }

    public bool CanGoBack { get => this.CurrentPage > 1; }
    
    public bool CanGoNext { get => this.CurrentPage < this.TotalPages; }

    private void NotifyPagingDetails()
    {
        OnPropertyChanged(nameof(CanGoNext));
        OnPropertyChanged(nameof(CanGoBack));
    }

    private void GoBack(object sender, TappedEventArgs e)
    {
        if (CanGoBack)
        {
            this.CurrentPage--;
        }
    }

    private void GoNext(object sender, TappedEventArgs e)
    {
        if (CanGoNext)
        {
            this.CurrentPage++;
        }
    }
}

ContentView.xaml

<ContentView xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Name="this"
             x:Class="MedMark.Components.PagingFunctionality">

    <Grid BindingContext="{x:Reference this}" ColumnDefinitions="50, auto, 50" Grid.Column="1" HorizontalOptions="End">
        <Image 
            Grid.Column="0"
            IsVisible="{Binding CanGoBack}" 
            Source="left_arrow.png" HeightRequest="30">
            <Image.GestureRecognizers>
                <TapGestureRecognizer Tapped="GoBack"/>
            </Image.GestureRecognizers>
        </Image>
        <HorizontalStackLayout Margin="10, 0" Grid.Column="1">
            <Entry x:Name="CurrentPageLabel" Text="{Binding CurrentPage}" FontSize="20"/>
            <Label x:Name="TotalPageLabel" Text="{Binding TotalPages, StringFormat=' / {0}'}" FontSize="20" VerticalOptions="Center"/>
        </HorizontalStackLayout>
        <Image 
            Grid.Column="2" 
            IsVisible="{Binding CanGoNext}"
            Source="right_arrow.png" HeightRequest="30">
            <Image.GestureRecognizers>
                <TapGestureRecognizer Tapped="GoNext"/>
            </Image.GestureRecognizers>
        </Image>
    </Grid>
</ContentView>

JobsView.xaml

<components:PagingFunctionality
                Grid.Column="1"
                TotalPages="{Binding TotalPages}"
                CurrentPage="{Binding CurrentPage}"/>

JobsViewModel.cs

[ObservableProperty]
    [NotifyPropertyChangedFor(nameof(TotalPages))]
    private int totalItems;

    [ObservableProperty]
    private int currentPage = 1;

    public int TotalPages { get => this.TotalItems % this.Pagination.PageSize == 0 ? this.TotalItems / this.Pagination.PageSize : this.TotalItems / this.Pagination.PageSize + 1; }

    partial void OnCurrentPageChanged(int oldValue, int newValue)
    {
        this.Pagination.CurrentPageNo = newValue;

        Task.Run(async () => await LoadJobs(false));
    }

由于ContentView.xaml.cs中的CurrentPageProperty具有BindingMode = TwoWay，因此在viewModel中，我侦听CurrentPage中的更改以加载相应的项。
请注意，转到下一页的逻辑在ContentView中通过属性CanGoNext和CanGoBack以及方法（绑定到点击事件）GoNext和GoBack进行验证和触发