MediaElement Windows Phone 8

Question

我在listbox上显示歌曲列表我有绑定媒体元素但是我无法在songs.cs文件中获取媒体元素名称实例而无法播放歌曲

<ListBox.ItemTemplate>
                        <DataTemplate>
                            <StackPanel>
                                <MediaElement Name="Player"  Source="{Binding SongUrl}" AutoPlay="False"/>
                                 <Button  Name="Click" Click="Play_Click"  Content="Button"/>
                                <StackPanel Width="150" Height="50">
                                    <TextBlock Text="{Binding SongName}" TextWrapping="Wrap" Style="{StaticResource PhoneTextSubtleStyle}"  TextAlignment="Center" Foreground="Red"  FontSize="16"/>
                                </StackPanel>
                            </StackPanel>
                        </DataTemplate>
                    </ListBox.ItemTemplate>

示例在Songs.cs中：

  private void Play_Click(object sender, RoutedEventArgs e)
    {
      Player.play(); (unable to get Media Element name) 
    }

Answer 1

媒体播放器不应该在ItemTemplate中，因为我一次只会播放一个声音（为eaach项目设置媒体元素会很昂贵）。所以你应该把MEdiaaPlayer移到外面并按下按钮点击：

private void Play_Click(object sender, RoutedEventArgs e)
{
   Button button=sender as Button;
   Player.Source=((Item)button.DataContext).SongUrl
  Player.play(); (unable to get Media Element name) 
}