Windows phone 7 我可以使用本地数据更新Mango中的live互动程序吗？

我有一个Mango WP7.5应用程序，它使用本地SqlCe数据库。我想添加一个LiveTile更新，显示基于当前日期和月份从本地数据库获取的信息

我发现的所有示例都通过从服务器下载远程图像来更新背景，但我只需要进行本地数据库查询并在我的互动程序中显示一个字符串

---

我能做吗？怎么做？

是的，你可以。你必须

生成包含文本信息的图像

将此映像保存到独立的存储和

通过

isostore

URI访问它

下面是显示如何执行此操作的代码（它会更新应用程序磁贴）：

// set properties of the Application Tile
private void button1_Click(object sender, RoutedEventArgs e)
{
    // Application Tile is always the first Tile, even if it is not pinned to Start
    ShellTile TileToFind = ShellTile.ActiveTiles.First();

    // Application Tile should always be found
    if (TileToFind != null)
    {
        // create bitmap to write text to
        WriteableBitmap wbmp = new WriteableBitmap(173, 173);
        TextBlock text = new TextBlock() { FontSize = (double)Resources["PhoneFontSizeExtraLarge"], Foreground = new SolidColorBrush(Colors.White) };
        // your text from database goes here:
        text.Text = "Hello\nWorld";
        wbmp.Render(text, new TranslateTransform() { Y = 20 });
        wbmp.Invalidate();

        // save image to isolated storage
        using (IsolatedStorageFile isf = IsolatedStorageFile.GetUserStoreForApplication())
        {
            // use of "/Shared/ShellContent/" folder is mandatory!
            using (IsolatedStorageFileStream imageStream = new IsolatedStorageFileStream("/Shared/ShellContent/MyImage.jpg", System.IO.FileMode.Create, isf))
            {
                wbmp.SaveJpeg(imageStream, wbmp.PixelWidth, wbmp.PixelHeight, 0, 100);
            }
        }

        StandardTileData NewTileData = new StandardTileData
        {
            Title = "Title",
            // reference saved image via isostore URI
            BackgroundImage = new Uri("isostore:/Shared/ShellContent/MyImage.jpg", UriKind.Absolute),
        };

        // update the Application Tile
        TileToFind.Update(NewTileData);
    }
}