Como: Ativar reprodução de mídia com um evento de usuário
This example shows how to synchronize media playback with an event.
Exemplo
The following example uses the MediaElement control and the MediaTimeline class to play a sound that occurs when the user clicks a Button.
<Page xmlns="https://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="https://schemas.microsoft.com/winfx/2006/xaml" >
<StackPanel>
<!-- The MediaElement control plays the sound. -->
<MediaElement Name="myMediaElement" />
<Button>Click to Hear a Sound!
<Button.Triggers>
<EventTrigger RoutedEvent="Button.Click">
<EventTrigger.Actions>
<BeginStoryboard>
<Storyboard>
<!-- Sound wave from this source is played when the button is clicked.-->
<MediaTimeline Source="C:\WINDOWS\Media\ringin.wav" Storyboard.TargetName="myMediaElement" />
</Storyboard>
</BeginStoryboard>
</EventTrigger.Actions>
</EventTrigger>
</Button.Triggers>
</Button>
</StackPanel>
</Page>
<Page xmlns="https://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="https://schemas.microsoft.com/winfx/2006/xaml" >
<StackPanel>
<!-- The MediaElement control plays the sound. -->
<MediaElement Name="myMediaElement" />
<Button>Click to Hear a Sound!
<Button.Triggers>
<EventTrigger RoutedEvent="Button.Click">
<EventTrigger.Actions>
<BeginStoryboard>
<Storyboard>
<!-- Sound wave from this source is played when the button is clicked.-->
<MediaTimeline Source="C:\WINDOWS\Media\ringin.wav" Storyboard.TargetName="myMediaElement" />
</Storyboard>
</BeginStoryboard>
</EventTrigger.Actions>
</EventTrigger>
</Button.Triggers>
</Button>
</StackPanel>
</Page>