private void selectEvenImageBtn_Click(object sender, RoutedEventArgs e)
        {
            var sbNumImage = new StringBuilder();
            var images     = new List <FaceImage>();

            foreach (FaceImage image in _selectionTrainTestImagesViewModel.Images)
            {
                int numImage = -1;
                sbNumImage.Clear();

                for (var i = 0; i < image.ShortName.Length; i++)
                {
                    if (image.ShortName[i] >= '0' && image.ShortName[i] <= '9')
                    {
                        sbNumImage.Append(image.ShortName[i]);
                    }
                }

                numImage = Convert.ToInt32(sbNumImage.ToString());
                if (numImage % 2 == 0)
                {
                    images.Add(image);
                }
            }
            _selectionTrainTestImagesViewModel.SetTrainImages(images);
        }
        public void SetTrainImagesTest()
        {
            SelectionTrainTestImagesViewModel target = new SelectionTrainTestImagesViewModel(); // TODO: Initialize to an appropriate value
            List <FaceImage> trainImages             = null;                                    // TODO: Initialize to an appropriate value

            target.SetTrainImages(trainImages);
            Assert.Inconclusive("A method that does not return a value cannot be verified.");
        }