Adding media to a page is as simple as adding a MediaElement to your markup and providing a Uniform Resource Identifier (URI) to the media to play. The following example creates a MediaElement and sets its Source property to the URI of a video file. The MediaElement begins playing when the page loads.

<StackPanel Width="300" Height="300">
<MediaElement x:Name="media" Source="xbox.wmv"Width="300" Height="300" />
</StackPanel>

<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="*" />
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<MediaElement x:Name="media" Source="xbox.wmv" Width="300" Height="300" Grid.Column="0" Grid.Row="0" Grid.ColumnSpan="3" />
<!-- Stops media playback.-->
<Button Click="StopMedia" Grid.Column="0" Grid.Row="1" Content="Stop" />
<!-- Pauses media playback. -->
<Button Click="PauseMedia" Grid.Column="1" Grid.Row="1" Content="Pause" />
<!-- Begins media playback. -->
<Button Click="PlayMedia" Grid.Column="2" Grid.Row="1" Content="Play" />
</Grid>

private void StopMedia(object sender, RoutedEventArgs e)
{
media.Stop();
}
private void PauseMedia(object sender, RoutedEventArgs e)
{
media.Pause();
}
private void PlayMedia(object sender, RoutedEventArgs e)
{
media.Play();
}

Private Sub StopMedia(ByVal sender As Object, ByVal e As RoutedEventArgs)
media.Stop()
End Sub
Private Sub PauseMedia(ByVal sender As Object, ByVal e As RoutedEventArgs)
media.Pause()
End Sub
Private Sub PlayMedia(ByVal sender As Object, ByVal e As RoutedEventArgs)
media.Play()
End Sub