XAML对象引用未设置为对象的实例

Question

错误发生在：meTestVideo.Source = url.Uri;我想我忘记了什么。我应该创建一个Object？对不起我的无知伙计这是我第一次在xaml编程。

public string Uri { get; set; } 

private async void PlayVideo()
{
        string VideoUrl = "http://www.youtube.com/watch?v=2rJwYN_SmOU";
        var url = await YouTube.GetVideoUriAsync(VideoUrl, YouTubeQuality.Quality360P);
        meTestVideo.Source = url.Uri;
}

Answer 1

您需要在参数中使用YouTube视频ID。

public string Uri { get; set; } 

    private async void PlayVideo()
    {
            string VideoUrl = "http://www.youtube.com/watch?v=2rJwYN_SmOU";
            var url = await YouTube.GetVideoUriAsync("2rJwYN_SmOU", YouTubeQuality.Quality360P);
            meTestVideo.Source = url.Uri;
    }