学步园

更新：2007 年 11 月

命名空间：
 System.Windows.Media.Animation

程序集：
 PresentationCore
（在 PresentationCore.dll 中）
用于 XAML 的 XMLNS：

http://schemas.microsoft.com/winfx/xaml/presentation

参考：

http://social.msdn.microsoft.com/Forums/zh-HK/wpf/thread/7d856f82-d112-4a1c-a457-1aeb1abe861b

http://technet.microsoft.com/zh-cn/office/system.windows.uielement.visibility%28it-it,VS.95%29.aspx

XAML实现:

<Border Height="100" Width="80" CornerRadius="11,11,11,11" Margin="5" BorderThickness="2" Background="Brown" IsEnabled="False" Name="Bord11"><br /> <Border.Triggers><br /> <EventTrigger RoutedEvent="Border.Loaded" ><br /> <EventTrigger.Actions><br /> <BeginStoryboard><br /> <Storyboard><br /> <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Duration="0:0:4"><br /> <ObjectAnimationUsingKeyFrames.KeyFrames><br /> <DiscreteObjectKeyFrame KeyTime="0:0:1" ><br /> <DiscreteObjectKeyFrame.Value><br /> <Visibility>Visible</Visibility><br /> </DiscreteObjectKeyFrame.Value><br /> </DiscreteObjectKeyFrame><br /> <DiscreteObjectKeyFrame KeyTime="0:0:2" ><br /> <DiscreteObjectKeyFrame.Value><br /> <Visibility>Hidden</Visibility><br /> </DiscreteObjectKeyFrame.Value><br /> </DiscreteObjectKeyFrame><br /> <DiscreteObjectKeyFrame KeyTime="0:0:3" ><br /> <DiscreteObjectKeyFrame.Value><br /> <Visibility>Collapsed</Visibility><br /> </DiscreteObjectKeyFrame.Value><br /> </DiscreteObjectKeyFrame></p> <p> </ObjectAnimationUsingKeyFrames.KeyFrames><br /> </ObjectAnimationUsingKeyFrames><br /> </Storyboard><br /> </BeginStoryboard><br /> </EventTrigger.Actions><br /> </EventTrigger><br /> </Border.Triggers><br /> <Label Height="39" Name="label1" Width="62">ABCDEFGH</Label><br /> </Border>

后台实现：

ObjectAnimationUsingKeyFrames animate = new ObjectAnimationUsingKeyFrames();<br /> animate.Duration = new TimeSpan(0,0,4);<br /> animate.RepeatBehavior = RepeatBehavior.Forever;<br /> DiscreteObjectKeyFrame kf1 = new DiscreteObjectKeyFrame(Visibility.Visible, new TimeSpan(0, 0, 1));<br /> DiscreteObjectKeyFrame kf2 = new DiscreteObjectKeyFrame(Visibility.Hidden, new TimeSpan(0, 0, 2));<br /> DiscreteObjectKeyFrame kf3 = new DiscreteObjectKeyFrame(Visibility.Collapsed, new TimeSpan(0, 0,3));<br /> animate.KeyFrames.Add(kf1);<br /> animate.KeyFrames.Add(kf2);<br /> animate.KeyFrames.Add(kf3);<br /> Bord11.BeginAnimation(Border.VisibilityProperty, animate);