public static bool SaveFile(byte[] binData, string fullName)
        {
            FileStream fileStream = null;
            MemoryStream m = new MemoryStream(binData);
            try
            {
                fileStream = new FileStream(fullName, FileMode.Create);
                m.WriteTo(fileStream);
                return true;
            }
            catch(Exception ex)
            {
                return false;
            }
            finally
            {
                m.Close();
                fileStream.Close();
            }
        }