Display a StorageFile in Windows 8 Metro C#

问题

I would like to display an image file on the UI from the Assets. I managed to store the item as a StorageFile. How can I display it? I've tried to display it in a XAML <Image> tag's Source. Is it possible to covert StorageFile to Image?

string path = @"Assets\mypicture.png";
StorageFile file = await InstallationFolder.GetFileAsync(path);

回答1:

Try this function

public async Task<Image> GetImageAsync(StorageFile storageFile)
{
        BitmapImage bitmapImage = new BitmapImage();
        FileRandomAccessStream stream = (FileRandomAccessStream)await storageFile.OpenAsync(FileAccessMode.Read);
        bitmapImage.SetSource(stream);
        Image image = new Image();
        image.Source = bitmapImage;
        return image;
}

回答2:

Try the following:

public async Task<BitmapImage> GetBitmapAsync(StorageFile storageFile)
{
    BitmapImage bitmap = new BitmapImage();
    IAsyncOperation<IRandomAccessStream> read = storageFile.OpenReadAsync();
    IRandomAccessStream stream = await read;
    bitmap.SetSource(stream);

    return bitmap;
}

Call the function this way:

Image image = new Image();
image.Source = await GetBitmapAsync (file);

回答3:

image.Source = new BitmapImage(new Uri("file://"+ storageFile.Path))

来源：https://stackoverflow.com/questions/12660077/display-a-storagefile-in-windows-8-metro-c-sharp