private void btnLoad_Click(object sender, RoutedEventArgs e)
 {
     try
     {
         ImageBrush image = settingImage_BLO.LoadImage_Button();
         ImageButton.Background = image;
         arrImage = settingImage_BLO.ConvertImage_ToBytes(image.ImageSource);
         settingImage_BLO.SaveImage_ToDB(arrImage);
     }
     catch { MessageBox.Show("Ảnh không hợp lệ", "Lỗi"); }
 }
        private void ImageButton_Click(object sender, RoutedEventArgs e)
        {
            SettingImage_BLO settingImage_BLO = new SettingImage_BLO();

            try
            {
                ImageBrush image = settingImage_BLO.LoadImage_Button();
                if (image == null)
                {
                    return;                 // Case: Open Dialog but not choose image
                }
                ImageButton.Background = image;
                arrImage    = settingImage_BLO.ConvertImage_ToBytes(image.ImageSource);
                changevalue = true;
            }
            catch { MessageBox.Show("Ảnh không hợp lệ", "Lỗi"); }
        }