DoubleAnimation da = new DoubleAnimation();
da.From = 0;
da.To = 400;
da.Duration = new Duration(TimeSpan.FromSeconds(1));
Storyboard.SetTargetName(da, "r13");
Storyboard.SetTargetProperty(da, new PropertyPath(Canvas.LeftProperty));
mySubStoryBoard.Children.Add(da);
DependencyObject do =Storyboard.GetTarget(mySubStoryBoard.Children[0]);
string str = Storyboard.GetTargetName(mySubStoryBoard.Children[0]);
結果:do == null、str==r13。
それはなぜですか?助けてください、ありがとう。