Question

我尝试做的应该相当简单，但无论出于何种原因，它都不起作用。预期的行为应该是滑块拇指从0 => 100（silder min = 0 max = 100）开始，这意味着从左到右，然后再次返回，再次向右，并在那里等待5秒钟就是这样，喜欢KITT（骑士）。

到目前为止，我唯一取得的成就是它开始向右移动，就是它，停在那里，什么都不做，没有进一步的动画：

storyboard = new Storyboard();
storyboard.Completed += Storyboard_OnCompleted;

var doubleKeyFrame = new DoubleAnimationUsingKeyFrames();
doubleKeyFrame.KeyFrames.Add(new LinearDoubleKeyFrame(0, KeyTime.FromTimeSpan(new TimeSpan(0, 0, 0, 0))));                       
doubleKeyFrame.KeyFrames.Add(new LinearDoubleKeyFrame(100, KeyTime.FromTimeSpan(new TimeSpan(0, 0, 0, 5))));
doubleKeyFrame.KeyFrames.Add(new LinearDoubleKeyFrame(0, KeyTime.FromTimeSpan(new TimeSpan(0, 0, 0, 5))));
doubleKeyFrame.KeyFrames.Add(new LinearDoubleKeyFrame(100, KeyTime.FromTimeSpan(new TimeSpan(0, 0, 0, 3))));
doubleKeyFrame.KeyFrames.Add(new LinearDoubleKeyFrame(100, KeyTime.FromTimeSpan(new TimeSpan(0, 0, 0, 5))));

Storyboard.SetTarget(doubleKeyFrame, slider);
Storyboard.SetTargetProperty(doubleKeyFrame, new PropertyPath("Value"));
storyboard.Children.Add(doubleKeyFrame);

storyboard.Begin(slider);

我现在正在玩那个小时，我不知道。也许有人可以帮我一点。

King问候，Bernhard。

Answer 1

试试这个，我为RepeatBehavior.Forever添加了doubleKeyFrame和持续时间：

var storyboard = new Storyboard();

var doubleKeyFrame = new DoubleAnimationUsingKeyFrames();
doubleKeyFrame.KeyFrames.Add(new LinearDoubleKeyFrame(100, KeyTime.FromTimeSpan(new TimeSpan(0, 0, 0, 0))));
doubleKeyFrame.KeyFrames.Add(new LinearDoubleKeyFrame(0, KeyTime.FromTimeSpan(new TimeSpan(0, 0, 0, 5))));

doubleKeyFrame.KeyFrames.Add(new LinearDoubleKeyFrame(0, KeyTime.FromTimeSpan(new TimeSpan(0, 0, 0, 0))));
doubleKeyFrame.KeyFrames.Add(new LinearDoubleKeyFrame(100, KeyTime.FromTimeSpan(new TimeSpan(0, 0, 0, 3))));

doubleKeyFrame.RepeatBehavior = RepeatBehavior.Forever;
doubleKeyFrame.Duration = TimeSpan.FromSeconds(10);

Storyboard.SetTarget(doubleKeyFrame, slider);
Storyboard.SetTargetProperty(doubleKeyFrame, new PropertyPath("Value"));
storyboard.Children.Add(doubleKeyFrame);

storyboard.Begin(slider);

在WPF中使用DoubleAnimationUsingKeyFrames为Slider制作动画

1 个答案: