Download Azure Blob image to memorystream in Windows Phone 8.1 - windows-phone-8.1

Question

The code below will copy an image file from Azure blob storage, and create a new image file locally. This local image will then be added to a List for further databinding to the XAML UI.
string accountName = "testacc";
string accountKey = "123abc";
string container = "textcontainer";
List<Mydata> items = new List<Mydata>();
BitmapImage bitmapToShow = new BitmapImage();
StorageCredentials creds = new StorageCredentials(accountName, accountKey);
CloudStorageAccount acc = new CloudStorageAccount(creds, useHttps: true);
CloudBlobClient cli = acc.CreateCloudBlobClient();
CloudBlobContainer sampleContainer = cli.GetContainerReference(container);
CloudBlockBlob blob = sampleContainer.GetBlockBlobReference("xbox.jpg");
// Here I need to copy the data stream directely to the BitmapImage instead of creating a file first
StorageFile photoFile = await ApplicationData.Current.LocalFolder.CreateFileAsync("temp_image.jpg", CreationCollisionOption.ReplaceExisting);
await blob.DownloadToFileAsync(photoFile);
bitmapToShow = new BitmapImage(new Uri(photoFile.Path));
items.Add(new Mydata() { image = bitmapToShow });
DataBinding.ItemsSource = items;
The code below will copy an image file from Azure blob storage, and create a new image file locally. This local image will then be added to a List for further databinding to the XAML UI.
Hovewer - in order to get more efficient, I am looking for a way to avoid creating the image file locally first. I am looking for a way where the image file in the Azure blob storage are copied to a MemoryStream and then passed directely into a BitmapImage.
I have not fiugred out to code that myself, and the code snippets I have not found, do not work for Windows Phone 8.1. I am programming in C# for Windows Phone 8.1 Universal App (not Silverlight).
Can someone help me with the code needed to get that functionality?

Answer 1

Would this work?
Stream photoStream = await blob.DownloadToStreamAsync(photoFile)
bitmapToShow = new BitmapImage(photoStream);
Hope it helps,
Drew

Answer 2

I found that this Works. It might not be perfect, but it Works. Comments or corrections are welcome.
string accountName = "testacc";
string accountKey = "123abc";
string container = "textcontainer";
List<Mydata> items = new List<Mydata>();
BitmapImage bitmapToShow = new BitmapImage();
InMemoryRandomAccessStream memstream = new InMemoryRandomAccessStream();
StorageCredentials creds = new StorageCredentials(accountName, accountKey);
CloudStorageAccount acc = new CloudStorageAccount(creds, useHttps: true);
CloudBlobClient cli = acc.CreateCloudBlobClient();
CloudBlobContainer sampleContainer = cli.GetContainerReference(container);
CloudBlockBlob blob = sampleContainer.GetBlockBlobReference("xbox.jpg");
await blob.DownloadToStreamAsync(memstream.CloneStream());
bitmapToShow.SetSource(memstream);
items.Add(new Mydata() { image = bitmapToShow });
DataBinding.ItemsSource = items;