我有一个简单的应用程序与主细节页面。
它看起来很像：x1c 0d1x
我想动态地改变主页面的内容。例如，在细节页面上有一些按钮，然后你点击它-从主页面消失的一些项目。
我试图找到一些项目属性，如item1.isVisible=False，但一无所获。
有什么办法可以让我做吗？
MainPage代码：

public partial class MainPage : MasterDetailPage
{
    public MainPage()
    {
        InitializeComponent();
        masterPage.listView.ItemSelected += OnItemSelected;
    }

    void OnItemSelected(object sender, SelectedItemChangedEventArgs e)
    {
        var item = e.SelectedItem as MasterPageItem;
        if (item != null)
        {
            Detail = new NavigationPage((Page)Activator.CreateInstance(item.TargetType));
            masterPage.listView.SelectedItem = null;
            IsPresented = false;
        }
    }
}

字符串
MainPage XAML：

<MasterDetailPage xmlns=....>
<MasterDetailPage.Master>
    <views:MasterPage x:Name="masterPage" />
</MasterDetailPage.Master>
<MasterDetailPage.Detail>
    <NavigationPage>
        <x:Arguments>
            <views:SomePage/>
        </x:Arguments>
    </NavigationPage>
</MasterDetailPage.Detail>

型
MasterPage XAML：

<StackLayout>
    <ListView x:Name="listView" x:FieldModifier="public" Margin="10,50,0,0">
        <ListView.ItemsSource>
            <x:Array Type="{x:Type local:MasterPageItem}">
                <local:MasterPageItem Title="Home" TargetType="{x:Type views:HomePage}" IconSource="nav_icon_home"/>
                <local:MasterPageItem Title="Settings" TargetType="{x:Type views:HomePage}" IconSource="nav_icon_settings" />
                <local:MasterPageItem Title="My Profile" TargetType="{x:Type views:HomePage}" IconSource="nav_icon_profile" />
                <local:MasterPageItem Title="Help" TargetType="{x:Type views:HomePage}" IconSource="nav_icon_help" />
                <local:MasterPageItem Title="About" TargetType="{x:Type views:AboutPage}" IconSource="nav_icon_about"/>
            </x:Array>
        </ListView.ItemsSource>
        <ListView.ItemTemplate>
            <DataTemplate>
                <ViewCell>
                    <Grid Padding="10,10,10,10" ColumnSpacing="10">
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="30"/>
                            <ColumnDefinition Width="*"/>
                        </Grid.ColumnDefinitions>
                        <Image Source="{Binding IconSource}"/>
                        <Label Grid.Column="1" Text="{Binding Title}" TextColor="White" VerticalOptions="Center"/>
                    </Grid>
                </ViewCell>
            </DataTemplate>
        </ListView.ItemTemplate>
    </ListView>
</StackLayout>

型
MasterPage项目：

public class MasterPageItem
{
    public string Title { get; set; }

    public string IconSource { get; set; }

    public Type TargetType { get; set; }
}

型
所以我在MasterPageItem中实现了INotifyPropertyChanged：

public class MasterPageItem : INotifyPropertyChanged
{
    public string Title { get; set; }

    public string IconSource { get; set; }

    public Type TargetType { get; set; }

    public event PropertyChangedEventHandler PropertyChanged = delegate { };

    private bool isVisible;

    public bool IsVisible
    {
        get { return isVisible; }
        set
        {
            isVisible = value;
            PropertyChanged(this, new PropertyChangedEventArgs("IsVisible"));
        }
    }

}

型
但是我如何将它绑定到我的MasterPage？