Windows.Ui.Xaml.Controls.Primitives.ButtonBase無法顯式調用運算符或訪問

Question

我得到以下錯誤：

Windows.Ui.Xaml.Controls.Primitives.ButtonBase cannot explicitly call operator or accessor

在下面的代碼中出現的錯誤：

case 11: 
       { 
        ButtonBase buttonBase2 = (ButtonBase)target; 
        WindowsRuntimeMarshal.AddEventHandler<RoutedEventHandler>(new Func<RoutedEventHandler, EventRegistrationToken>(buttonBase2, ButtonBase.add_Click), new Action<EventRegistrationToken>(buttonBase2, ButtonBase.remove_Click), new RoutedEventHandler(this.RemoveTrack)); 
        break; 
       } 

Answer 1

這是編譯時錯誤。而從MSDN WindowsRuntimeMarshal.AddEventHandler Method：

This API supports the .NET Framework infrastructure and is not intended to be used directly from your code. 

如果您添加/移除事件處理程序的Click事件，使用+= and -= operators

buttonBase2.Click += this.RemoveTrack; 

和

buttonBase2.Click -= this.RemoveTrack;