C＃：可访问性不一致：属性类型 [英] C#: Inconsistent accessibility: property type

问题描述

这有什么错

public partial class MainWindow : Window
{
    public ObservableCollection<TabViewModel> Tabs { get; set; }
    public ICollectionView TabsViewSource { get; set; }
    public int CurrentIndex { get { return TabsViewSource.CurrentPosition; } }

我得到

可访问性不一致：属性类型'System.Collections.ObjectModel.ObservableCollection'比财产TabsRendering.MainWindow.Tabs少访问

Inconsistent accessibility: property type 'System.Collections.ObjectModel.ObservableCollection' is less accessible than property 'TabsRendering.MainWindow.Tabs'

当我改变code到

public partial class MainWindow : Window
{
    ObservableCollection<TabViewModel> Tabs { get; set; }
    public ICollectionView TabsViewSource { get; set; }
    public int CurrentIndex { get { return TabsViewSource.CurrentPosition; } }

它的工作原理。什么错与公共在的ObservableCollection

推荐答案

请 TabViewModel A public类型了。

MakeTabViewModela public type too.

显然，它不会使一个的公共的上的公共的含-type属性是一个类型是不公开的意义。怎么可能物业present本身外部组件？

Obviously, it doesn't make sense for a public property on a public containing-type to be of a type that is not public. How could the property present itself to external assemblies?

你的第二个样品工作，因为，作为一般规则，不提供访问修饰符意味着的至少适用的修改被选择作为默认的 - 在这种情况下：私人。显然，与声明内部（？）类型的私有财产没有一致性的问题。

Your second sample works because, as a general rule, providing no accessibility modifiers means that the least applicable modifier is chosen as the default - in this case: private. Clearly, there are no consistency issues with declaring a private property of an internal (?) type.

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