使用WPF故事板正向和反向 [英] Using WPF StoryBoard Forward and Reverse

问题描述

我需要帮助的故事板中寻找。下面code不工作：

I need help in the Storyboard Seek. The following code is not working:

Storyboard StoryBoard;

public void Reverse()
            {
                StoryBoard.Pause(this);

                TimeSpan ts = new TimeSpan(0);
                ts.Subtract(TimeSpan.FromMilliseconds(1000));
                StoryBoard.Seek(this, ts, TimeSeekOrigin.BeginTime);
            }

public void Forward()
            {
                StoryBoard.Pause(this);

                TimeSpan ts = new TimeSpan(0);
                ts.Add(TimeSpan.FromMilliseconds(1000));
                StoryBoard.Seek(this, ts, TimeSeekOrigin.BeginTime);
            }

先谢谢了。

推荐答案

对于反转：

TimeSpan CurrentTime = (TimeSpan) StoryBoard.CurrentTime;
TimeSpan SubtractTime = CurrentTime.Subtract(new TimeSpan(FrameRate * (long)Math.Pow(10,4)));
StoryBoard.Seek(SubtractTime, TimeSeekOrigin.Duration);

正向：

TimeSpan CurrentTime = (TimeSpan) StoryBoard.CurrentTime;
TimeSpan AddTime = CurrentTime.Add(new TimeSpan(FrameRate * (long)Math.Pow(10,4)));
StoryBoard.Seek(AddTime, TimeSeekOrigin.Duration);

这篇关于使用WPF故事板正向和反向的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！