如何在UWP c#中添加图像到SQlite数据库？

using SQLite.Net;
using SQLite.Net.Attributes;

public class ImageData
{
    [PrimaryKey, AutoIncrement]
    public int Id { get; set; }
    public byte[] ImageBytes { get; set; }
}

using SQLite.Net;
using SQLite.Net.Platform.WinRT;

public sealed partial class MainPage : Page
{
    private SQLiteConnection conn;

    public MainPage()
    {
        this.InitializeComponent();
        conn = new SQLiteConnection(new SQLitePlatformWinRT(), "mydatabase.db");
        conn.CreateTable<ImageData>();
    }
}

using Windows.Storage;
using Windows.Storage.Streams;

public async void AddImageToDatabase(StorageFile imageFile)
{
    using (IRandomAccessStream stream = await imageFile.OpenAsync(FileAccessMode.Read))
    {
        using (DataReader reader = new DataReader(stream))
        {
            await reader.LoadAsync((uint)stream.Size);
            byte[] imageBytes = new byte[stream.Size];
            reader.ReadBytes(imageBytes);

            ImageData imageData = new ImageData()
            {
                ImageBytes = imageBytes
            };

            conn.Insert(imageData);
        }
    }
}

StorageFile imageFile = await StorageFile.GetFileFromPathAsync("path_to_image.jpg");
AddImageToDatabase(imageFile);