在wpf窗口中加载视频

Question

使用<MediaElement>在网格中显示视频时遇到问题。我已经创建了一个单独的类来获取具有get set属性的视频详细信息。问题是我在调试程序时无法在窗口加载时访问视频文件夹。我也在debug文件夹中保存了一个名为Videos的文件夹。如果有人可以帮忙!!提前谢谢。

VideoDetail.cs

public string Name { get; set; }
public string Description { get; set; }
public string Path { get; set; }
public string FileName { get; set; }
public string Extension { get; set; }
public int Height { get; set; }
public int Width { get; set; }
public long Size { get; set; }

Window.xaml

<ItemsControl Name="VideoList" ItemsSource="{Binding VideoList}">
    <ItemsControl.ItemTemplate>
        <DataTemplate>
            <Border BorderThickness="1" BorderBrush="#FFD0D1D7" Padding="5" Margin="10,10,0,0">
                <StackPanel Orientation="Horizontal">
                    <!--image -->
                    <Grid Width="200" Height="150">
                        <MediaElement Source="{Binding Path}"/>
                    </Grid>
                </StackPanel>
            </Border>
        </DataTemplate>
    </ItemsControl.ItemTemplate>
</ItemsControl>

Window.xaml.cs

private void Window_Loaded(object sender, RoutedEventArgs e)
    {
        string root = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location);
        string[] supportedExtensions = new[] { ".mp4" };
        var files = Directory.GetFiles(Path.Combine(root, "Videos"), "*.*").Where(s => supportedExtensions.Contains(Path.GetExtension(s).ToLower()));

        List<ImageDetails> videos = new List<ImageDetails>();

        foreach (var file in files)
        {
        ImageDetails id = new ImageDetails()
            {
                Path = file,
                FileName = Path.GetFileName(file),
                Extension = Path.GetExtension(file)
            };

        FileInfo fi = new FileInfo(file);
            id.Size = fi.Length;
            videos.Add(id);
        }

       VideoList.ItemsSource = videos;
    }
}