C# WPF绑定到继承的值

我试图绑定一对网格的可见性标志，但是它们似乎忽略了我的尝试。任何帮助都将不胜感激。谢谢

这在我的屏幕xaml中：

<Grid Name="grdNotifLogo" Style="{StaticResource insightLogoNotify}" Visibility="{Binding Path=_notifVisibility, Mode=OneWay}" MouseDown="grdNotifLogo_MouseDown"/>
<Grid Name="grdMainLogo" Style="{StaticResource insightLogo}" Visibility="{Binding Path=_logoVisibility, Mode=OneWay}"/>

数据上下文也设置到保存我感兴趣的网格的网格：

        ToolBar.DataContext = this;

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是的，在Ryan，Adam和Tigran之间，你有你的答案。在代码中，完整的解决方案类似于下面的示例。请注意，当您使用“Binding”关键字时，您正试图从控件的数据上下文访问属性。这就是为什么必须将控件的“DataContext”属性设置为具有这些属性的类。正如Ryan指出的，属性也必须是公共的，否则您将无法绑定到它们。最后，正如Adam所指出的，您必须使用INotifyPropertyChanged接口将视图模型对象属性中的更改传达给控件

因此，XAML被调整为指向新的公共属性名称：

<Grid Name="grdNotifLogo" Style="{StaticResource insightLogoNotify}" Visibility="{Binding NotificationVisibility}" MouseDown="grdNotifLogo_MouseDown"/>
<Grid Name="grdMainLogo" Style="{StaticResource insightLogo}" Visibility="{Binding LogoVisibility}"/>

创建要设置为数据上下文的新视图模型类：

class MyViewModel : INotifyPropertyChanged
{
    private Visibility _logoVisibility = Visibility.Visible;
    private Visibility _notifVisibility = Visibility.Collapsed;

    public Visibility LogoVisibility
    {
        get { return _logoVisibility; }
    }

    public Visibility NotificationVisibility
    {
        get { return _notifVisibility; }
    }

    public bool NotificationIconEnabled
    {
        get { return _notifVisibility == Visibility.Visible; }
        set
        {
            if (value)
            {
                _logoVisibility = Visibility.Collapsed;
                _notifVisibility = Visibility.Visible;
            }
            else
            {
                _logoVisibility = Visibility.Visible;
                _notifVisibility = Visibility.Collapsed;
            }
            OnPropertyChanged("LogoVisibility");
            OnPropertyChanged("NotificationVisibility");
        }
    }

    #region INotifyPropertyChanged Members

    public event PropertyChangedEventHandler PropertyChanged;

    protected virtual void OnPropertyChanged(string propertyName)
    {
        if (this.PropertyChanged != null)
        {
            this.PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
        }
    }

    #endregion // INotifyPropertyChanged Members
}

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将可见性绑定到“受保护”字段；您应该绑定到公共属性（），并且没有更改通知。我已经有了datacontext（更新的问题），但没有这些OnPropertyChanged调用。谢谢它解决了这个问题。

class MyControl : UserControl
{
    public MyControl()
    {
        InitializeComponent();
        this.DataContext = new MyViewModel();
    }
}

class MyViewModel : INotifyPropertyChanged
{
    private Visibility _logoVisibility = Visibility.Visible;
    private Visibility _notifVisibility = Visibility.Collapsed;

    public Visibility LogoVisibility
    {
        get { return _logoVisibility; }
    }

    public Visibility NotificationVisibility
    {
        get { return _notifVisibility; }
    }

    public bool NotificationIconEnabled
    {
        get { return _notifVisibility == Visibility.Visible; }
        set
        {
            if (value)
            {
                _logoVisibility = Visibility.Collapsed;
                _notifVisibility = Visibility.Visible;
            }
            else
            {
                _logoVisibility = Visibility.Visible;
                _notifVisibility = Visibility.Collapsed;
            }
            OnPropertyChanged("LogoVisibility");
            OnPropertyChanged("NotificationVisibility");
        }
    }

    #region INotifyPropertyChanged Members

    public event PropertyChangedEventHandler PropertyChanged;

    protected virtual void OnPropertyChanged(string propertyName)
    {
        if (this.PropertyChanged != null)
        {
            this.PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
        }
    }

    #endregion // INotifyPropertyChanged Members
}