PropertyPath问题 - 无法解析属性路径中的所有属性引用（Canvas.SetLeft）

Question

我正在尝试移动一个矩形。是否还有其他一些财产可供使用。请帮帮我。谢谢！

Rectangle myRectangle = new Rectangle();
Color myColor = Color.FromArgb(255, 255, 0, 0);
SolidColorBrush myBrush = new SolidColorBrush();
myRectangle.Width = 200;
myRectangle.Height = 200;            
myBrush.Color = myColor;
myRectangle.Fill = myBrush;

Canvas.SetLeft(myRectangle, 200);
Canvas.SetTop(myRectangle, 200);

canvasPanel.Children.Add(myRectangle);

Duration duration = new Duration(TimeSpan.FromSeconds(2));

DoubleAnimation myDoubleAnimation1 = new DoubleAnimation();
DoubleAnimation myDoubleAnimation2 = new DoubleAnimation();

myDoubleAnimation1.Duration = duration;
myDoubleAnimation2.Duration = duration;

Storyboard sb = new Storyboard();
sb.Duration = duration;

sb.Children.Add(myDoubleAnimation1);
sb.Children.Add(myDoubleAnimation2);

Storyboard.SetTarget(myDoubleAnimation1, myRectangle);
Storyboard.SetTarget(myDoubleAnimation2, myRectangle);


Storyboard.SetTargetProperty(myDoubleAnimation1, new PropertyPath("Canvas.SetLeft"));
Storyboard.SetTargetProperty(myDoubleAnimation2, new PropertyPath("Canvas.SetTop"));

myDoubleAnimation1.To = 200;
myDoubleAnimation2.To = 200;

canvasPanel.Resources.Add("unique_id", sb);
RootWindow.Content = canvasPanel;

sb.Begin();

Answer 1

这是因为SetLeft和SetTop是方法而非属性。你需要做的是：

Storyboard.SetTargetProperty(myDoubleAnimation1, new PropertyPath(Canvas.LeftProperty));
Storyboard.SetTargetProperty(myDoubleAnimation2, new PropertyPath(Canvas.TopProperty));