刷新MVVM中的只读(链接)属性

class NameViewModel : ObservableViewModel
{ 
    Boolean mShowFullName = false;
    string mFirstName = "Wonko";
    string mLastName = "DeSane";
    private readonly DelegateCommand mToggleName;

    public NameViewModel()
    {
        mToggleName = new DelegateCommand(() => ShowFullName = !mShowFullName);
    }

    public ICommand ToggleNameCommand
    {
        get { return mToggleName; }
    }

    public Boolean ShowFullName
    {
        get { return mShowFullName; }
        set { SetPropertyValue("ShowFullName", ref mShowFullName, value); }
    }

    public string Name
    {
        get { return (mShowFullName ? this.FullName : this.Initials); }
    }

    public string FullName
    {
        get { return mFirstName + " " + mLastName; }
    }

    public string Initials
    {
        get { return mFirstName.Substring(0, 1) + "." + mLastName.Substring(0, 1) + "."; }
    }
}

使用此ViewModel的[在此处插入形容词]视图可能如下所示:

<TextBlock x:Name="txtName"
           Grid.Row="0"
           Text="{Binding Name}" />

<Button x:Name="btnToggleName"
        Command="{Binding ToggleNameCommand}"
        Content="Toggle Name"
        Grid.Row="1" />

我看到的问题是togglename命令何时被触发。ShowFullName属性由命令正确更新,但视图中的名称绑定从未更新。

我错过了什么?如何强制绑定更新?我是否需要将名称属性实现为dependencProperties(并因此从DependencyObject派生)?对我来说似乎有点沉重,我希望有一个更简单的解决方案。

谢谢, 水处理系统