ICommandSource的命令在VS 2015中抛出"属性"命令"没有可访问的setter"例外

Question

我目前正在运行Visual Studio 2015的"14.0.23103.0 D14REL",并注意到关于实现ICommandSource接口的自定义UI控件的一个奇怪的设计时异常.更有趣的是,如果目标平台是x64,问题就出现了.当设置来自上述接口的实现的自定义控件的Command属性时,VS设计器抛出" 属性"命令"没有可访问的setter "异常.

当平台是x64或者我错过了某些东西时,这是Visual Studio 2015的已知问题吗？这是我实现的一些代码.

• 风景

  <Grid>
      <local:MyControl MySecondCommand="{Binding MyCommand}"
                           Command="{Binding MyCommand}"/>
  </Grid>
  

• 自定义控件

  public class MyControl : Control, ICommandSource
  {
      public static readonly DependencyProperty MySecondCommandProperty =
          DependencyProperty.Register("MySecondCommand", typeof(ICommand), typeof(MyControl), new PropertyMetadata(null));
  
      public ICommand MySecondCommand
      {
          get { return (ICommand)this.GetValue(MySecondCommandProperty); }
          set { this.SetValue(MySecondCommandProperty, value); }
      }
  
      public static readonly DependencyProperty CommandProperty =
          DependencyProperty.Register("Command", typeof(ICommand), typeof(MyControl), new PropertyMetadata(null));
  
      public ICommand Command
      {
          get { return (ICommand)this.GetValue(CommandProperty); }
          set { this.SetValue(CommandProperty, value); }
      }
  
      public object CommandParameter
      {
          get
          {
              throw new NotImplementedException();
          }
      }
  
      public IInputElement CommandTarget
      {
          get
          {
              throw new NotImplementedException();
          }
      }
  }