/// <summary>
        /// Carica un immagine da file liberando l'uso del file
        /// </summary>
        /// <param name="fileName"></param>
        /// <returns></returns>
        public static System.Drawing.Image LoadImageFromFile(string fileName)
        {
            System.Drawing.Image result = null;
            try
            {
                using (FileStream fileStream = new FileStream(fileName, FileMode.Open, FileAccess.Read))
                {
                    byte[] img;
                    img = new byte[fileStream.Length];

                    try
                    {
                        fileStream.Read(img, 0, img.Length);
                        result = System.Drawing.Image.FromStream(new MemoryStream(img));
                    }
                    catch (Exception ex)
                    {

                    }

                    fileStream.Flush();
                    fileStream.Close();

                    img = null;
                }
                GC.Collect();
            }
            catch (Exception e)
            {

            }
            return result;
        }