WPF 实现视频循环播放

方法1：后台代码处理MediaEnded事件

xaml:

<MediaElement Name="player" MediaEnded="player_MediaEnded" Source="Videos/test.wmv" />

cs:

private void player_MediaEnded(object sender, RoutedEventArgs e)
{
//设置一下视频进度，确保从头开始播放
player.Position = TimeSpan.Zero;
player.Play();
}

方法2：xaml中处理

MediaElement.Source 不需要赋值

使用触发器播放动画，设置动画的RepeatBehavior="Forever"即可实现循环播放

<MediaElement Name="player">
<MediaElement.Triggers>
<EventTrigger RoutedEvent="MediaElement.Loaded">
<EventTrigger.Actions>
<BeginStoryboard>
<Storyboard>
<MediaTimeline Source="Videos/test.wmv" Storyboard.TargetName="player" RepeatBehavior="Forever" />
</Storyboard>
</BeginStoryboard>
</EventTrigger.Actions>
</EventTrigger>
</MediaElement.Triggers>
</MediaElement>

注：视频的属性设置如下：