public ChangePasswordViewModel()
        {
            Messenger.Default.Register <String>(this, loginResponse =>
            {
                _loginResponse = loginResponse;
                System.Diagnostics.Debug.WriteLine("###### recieved AccountUpdateViewModel ######");
                System.Diagnostics.Debug.WriteLine(_loginResponse);
                JsonTools test = new JsonTools();
                _userID        = test.JsonGetIdUser(_loginResponse);
            });

            SubmitCommandChangePasswordViewModel = new RelayCommand(() =>
            {
                Globals test_global      = null;
                test_global              = Globals.getInstance();
                HTTPRequest connect      = new HTTPRequest();
                connect.RequestFinished += new HTTPRequest.RequestFinishedEventHandler(this.doChangePassword);
                connect.HttpPutRequest(test_global.IpAPI + "api/users/" + _userID + "/password", "{ \"current_password\":\"" + this.CurrentPassword + "\",\n\"new_password\":\"" + this.NewPassword + "\" }");

                INavigationService navigationService = SimpleIoc.Default.GetInstance <INavigationService>();
                navigationService.GoBack();
            });

            CancelCommandAccountUpdateViewModel = new RelayCommand(() =>
            {
                NewPassword     = "";
                CurrentPassword = "";
            });
        }
        public AccountUpdateViewModel()
        {
            Messenger.Default.Register <String>(this, loginResponse =>
            {
                _loginResponse = loginResponse;
                System.Diagnostics.Debug.WriteLine("###### recieved AccountUpdateViewModel ######");
                System.Diagnostics.Debug.WriteLine(_loginResponse);
                JsonTools test = new JsonTools();
                _userID        = test.JsonGetIdUser(_loginResponse);
                byteArray      = null;
                contentType    = null;
                AccountInformationDisplay();
            });

            AcceptCommandAccountUpdateViewModel = new RelayCommand(() =>
            {
                Globals test_global      = null;
                test_global              = Globals.getInstance();
                HTTPRequest connect      = new HTTPRequest();
                connect.RequestFinished += new HTTPRequest.RequestFinishedEventHandler(this.doEditProfile);
                connect.HttpPutRequest(test_global.IpAPI + "api/users/" + _user.Id + "/personal_data", "{ \"firstname\":\"" + FirstName + "\",\n\"lastname\":\"" + LastName + "\",\n\"email\":\"" + _user.Email + "\",\n\"message\":\"" + Message + "\" }");

                System.Diagnostics.Debug.WriteLine("byteArray => " + byteArray);
                System.Diagnostics.Debug.WriteLine("contentType => " + contentType);

                if (contentType != null && byteArray != null)
                {
                    HTTPRequest connect_sec      = new HTTPRequest();
                    connect_sec.RequestFinished += new HTTPRequest.RequestFinishedEventHandler(this.doEditProfile2);
                    connect_sec.HttpPutRequestUpload(test_global.IpAPI + "api/users/" + _user.Id + "/photo", byteArray, contentType);
                }

                INavigationService navigationService = SimpleIoc.Default.GetInstance <INavigationService>();
                Messenger.Default.Send(_loginResponse);
                navigationService.GoBack();
            });

            CancelCommandAccountUpdateViewModel = new RelayCommand(() =>
            {
                UserName  = _user.UserName;
                FirstName = _user.FirstName;
                LastName  = _user.LastName;
                Email     = _user.Email;
                //this.UserImage.ImageSource = new BitmapImage(new Uri(_user.PictureURL, UriKind.Absolute));
                PictureURL = new BitmapImage(new Uri(_user.PictureURL, UriKind.Absolute));
                Message    = _user.Message;
                INavigationService navigationService = SimpleIoc.Default.GetInstance <INavigationService>();
                navigationService.GoBack();
            });

            ChangePasswordCommandAccountUpdateViewModel = new RelayCommand(() =>
            {
                System.Diagnostics.Debug.WriteLine("AccountUpdateCommandAccountPage click :)");
                INavigationService navigationService = SimpleIoc.Default.GetInstance <INavigationService>();
                Messenger.Default.Send(_loginResponse);
                navigationService.NavigateTo(ViewModelLocator.NavigationChangePasswordView);
            });

            ImageProfileCommandAccountUpdateViewModel = new RelayCommand(async() =>
            {
                FileOpenPicker openPicker         = new FileOpenPicker();
                openPicker.ViewMode               = PickerViewMode.Thumbnail;
                openPicker.SuggestedStartLocation = PickerLocationId.PicturesLibrary;
                openPicker.FileTypeFilter.Add(".jpg");
                openPicker.FileTypeFilter.Add(".jpeg");
                openPicker.FileTypeFilter.Add(".png");
                openPicker.FileTypeFilter.Add(".gif");
                openPicker.FileTypeFilter.Add(".ico");

                StorageFile file = await openPicker.PickSingleFileAsync();
                if (file != null)
                {
                    System.Diagnostics.Debug.WriteLine("Picked photo: " + file.Name);
                    contentType = file.ContentType;

                    Stream requestStream = await file.OpenStreamForReadAsync();
                    byteArray            = null;
                    using (MemoryStream ms = new MemoryStream())
                    {
                        await requestStream.CopyToAsync(ms);
                        byteArray = ms.ToArray();
                    }
                    StorageFile storageFile = file;
                    var stream      = await storageFile.OpenAsync(FileAccessMode.Read);
                    var bitmapImage = new BitmapImage();
                    await bitmapImage.SetSourceAsync(stream);

                    var decodeur = await BitmapDecoder.CreateAsync(stream);
                    PictureURL   = bitmapImage;
                }
                else
                {
                    System.Diagnostics.Debug.WriteLine("Operation cancelled.");
                }
            });
        }