public static string GetFileMD5(string FilePath) { try { FileStream get_file = new FileStream(FilePath, FileMode.Open, FileAccess.Read, FileShare.Read); System.Security.Cryptography.MD5CryptoServiceProvider get_md5 = new System.Security.Cryptography.MD5CryptoServiceProvider(); byte[] hash_byte = get_md5.ComputeHash(get_file); string resule = System.BitConverter.ToString(hash_byte); resule = resule.Replace("-", ""); get_file.Close(); return resule; } catch { return string.Empty; } }