void _Timer_Elapsed(object sender, ElapsedEventArgs e)
        {
            this.image.Dispatcher.Invoke(
                   new Action(
                        delegate
                        {
                            if (_CurrentIndex == _ImageFiles.Length - 1)
                            {
                                _CurrentIndex = 0;
                            }
                            else
                            {
                                _CurrentIndex++;
                            }
                            _CurrentImage = _ImageFiles[_CurrentIndex];
                            BitmapImage imgSource = new BitmapImage();
                            imgSource.BeginInit();
                            imgSource.UriSource = new Uri(_CurrentImage);
                            imgSource.EndInit();
                            image.Source = imgSource;
                        }
                   )
             );
            
        }