Azure Storage Multiple Image Upload - azure

Question

How can I upload multiple images to Azure Storage from Windows Phone 8? I found a solution to upload single image, but I need to upload 3 images.
The solution that I found is below:
http://azure.microsoft.com/documentation/articles/mobile-services-windows-phone-upload-data-blob-storage/
I have an User Model, which have following properties.
public class User
{
public long Id { get; set; }
[JsonProperty(PropertyName = "username")]
public string UserName { get; set; }
[JsonProperty(PropertyName = "name")]
public string Name { get; set; }
[JsonProperty(PropertyName = "password")]
public string Password { get; set; }
[JsonProperty(PropertyName = "phone")]
public string Phone { get; set; }
[JsonProperty(PropertyName = "email")]
public string Email { get; set; }
[JsonProperty(PropertyName = "gender")]
public char Gender { get; set; }
[JsonProperty(PropertyName = "birthdate")]
public DateTime BirthDate { get; set; }
[JsonProperty(PropertyName = "location")]
public string Location { get; set; }
[JsonProperty(PropertyName = "photo")]
public System.Windows.Controls.Image Photo { get; set; }
// For Blob Storage Photo Upload
[JsonProperty(PropertyName = "containerName")]
public string ContainerName { get; set; }
[JsonProperty(PropertyName = "resourceName")]
public string ResourceName { get; set; }
[JsonProperty(PropertyName = "sasQueryString")]
public string SasQueryString { get; set; }
[JsonProperty(PropertyName = "imageUri")]
public string ImageUri { get; set; }
}
And, for register our application, user can upload a profile picture. The code for uploading a profile picture as follows:
public RegisterVersion2()
{
InitializeComponent();
SetBinding();
BuildLocalizedApplicationBar();
cameraCaptureTask = new PhotoChooserTask();
cameraCaptureTask.ShowCamera = true;
cameraCaptureTask.Completed += cameraCaptureTask_Completed;
}
void cameraCaptureTask_Completed(object sender, PhotoResult e)
{
imageStream = e.ChosenPhoto;
bmp = new System.Windows.Media.Imaging.BitmapImage();
bmp.SetSource(e.ChosenPhoto);
profilPicture.Source = bmp;
}
private void photoChoose_Click(object sender, RoutedEventArgs e)
{
cameraCaptureTask.Show();
}
async void Register(object sender, EventArgs e)
{
// Some code for getting input from user for username, email, password etc.I don't put this code here.
Model.User newUser = new Model.User
{ Email = email, UserName = username, Password = password,
BirthDate = birthday, Name = name + " " + surname, Gender = gender,
Phone = phone, ContainerName = username, ResourceName = Guid.NewGuid().ToString() + ".jpg" };
string errorString = string.Empty;
DateTime today = DateTime.Today;
if (imageStream != null)
{
await User.InsertAsync(newUser);
}
// Send the item to be inserted. When blob properties are set this
// generates an SAS in the response.
// If we have a returned SAS, then upload the blob.
if (!string.IsNullOrEmpty(newUser.SasQueryString))
{
// Get the URI generated that contains the SAS
// and extract the storage credentials.
StorageCredentials cred = new StorageCredentials(newUser.SasQueryString);
var imageUri = new Uri(newUser.ImageUri);
// Instantiate a Blob store container based on the info in the returned item.
CloudBlobContainer container = new CloudBlobContainer(
new Uri(string.Format("https://{0}/{1}",imageUri.Host, newUser.ContainerName)), cred);
// Upload the new image as a BLOB from the stream.
CloudBlockBlob blobFromSASCredential = container.GetBlockBlobReference(newUser.ResourceName);
await blobFromSASCredential.UploadFromStreamAsync(imageStream);
// When you request an SAS at the container-level instead of the blob-level,
// you are able to upload multiple streams using the same container credentials.
imageStream = null;
}
My question is about uploading multiple images. For this time, I have an Item object, which again same properties as Id, ItemName, ItemCost, ItemDescription etc. However, for this time we need to have 3 different image upload. The properties below are used for one photo, also the code for uploading image is used for one photo. How can change it?
// For Blob Storage Photo Upload
[JsonProperty(PropertyName = "containerName")]
public string ContainerName { get; set; }
[JsonProperty(PropertyName = "resourceName")]
public string ResourceName { get; set; }
[JsonProperty(PropertyName = "sasQueryString")]
public string SasQueryString { get; set; }
[JsonProperty(PropertyName = "imageUri")]
public string ImageUri { get; set; }