WPF动画之关键帧动画(2)

XAML代码：

1 <Window x:Class="关键帧动画.MainWindow"
2         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
3         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
4         Title="MainWindow" Height="350" Width="525" Loaded="Window_Loaded">
5     <Grid>
6         <Border Height="32" Width="0" Background="#326939" Name="border1"/>
7     </Grid>
8 </Window>

.CS代码：

 1 using System;
 2 using System.Windows;
 3 using System.Windows.Controls;
 4 using System.Windows.Media.Animation;
 5
 6 namespace 关键帧动画
 7 {
 8     /// <summary>
 9     /// MainWindow.xaml 的交互逻辑
10     /// </summary>
11     public partial class MainWindow : Window
12     {
13         public MainWindow()
14         {
15             InitializeComponent();
16         }
17
18         private void Window_Loaded(object sender, System.Windows.RoutedEventArgs e)
19         {
20             // 在此处添加事件处理程序实现。
21             DoubleAnimationUsingKeyFrames dak=new DoubleAnimationUsingKeyFrames();
22             dak.KeyFrames.Add(new LinearDoubleKeyFrame(0,KeyTime.FromTimeSpan(TimeSpan.FromSeconds(0))));
23             dak.KeyFrames.Add(new LinearDoubleKeyFrame(240,KeyTime.FromTimeSpan(TimeSpan.FromSeconds(3))));
24             dak.KeyFrames.Add(new LinearDoubleKeyFrame(240,KeyTime.FromTimeSpan(TimeSpan.FromSeconds(6))));
25             dak.KeyFrames.Add(new LinearDoubleKeyFrame(0,KeyTime.FromTimeSpan(TimeSpan.FromSeconds(9))));
26             dak.BeginTime=TimeSpan.FromSeconds(2);
27             dak.RepeatBehavior=new RepeatBehavior(2);
28             this.border1.BeginAnimation(Border.WidthProperty,dak);
29         }
30     }
31 }