Nrthugu

i'm trying to Make an small Encryptor with Winforms
The Encryption function doesn't need to interact with the UI but the Progress function does.

Here is My Encryption Method

 public static void Enc(string Target)

        {

            if (IsFileEncrypted(Target)) { }

            else

            {

                string n = Target;



                try

                {

                    var aes = new AesManaged();

                    aes.BlockSize = aes.LegalBlockSizes[0].MaxSize;

                    aes.KeySize = aes.LegalKeySizes[0].MaxSize;

                    var salt = GetBytes(SaltKey);

                    var key = new Rfc2898DeriveBytes(SKey, salt, Iterations);

                    aes.Key = key.GetBytes(aes.KeySize / 8);

                    aes.IV = key.GetBytes(aes.BlockSize / 8);

                    aes.Mode = CipherMode.CBC;

                    ICryptoTransform transform = aes.CreateEncryptor(aes.Key, aes.IV);



                    using (var dest = new FileStream(CCX(Target), FileMode.CreateNew, FileAccess.Write, FileShare.None))

                    {

                        using (var cryptoStream = new CryptoStream(dest, transform, CryptoStreamMode.Write))

                        {

                            using (var source = new FileStream(Target, FileMode.Open, FileAccess.Read, FileShare.Read))

                            {

                                source.CopyTo(cryptoStream);

                            }

                        }

                    }

                }

                catch (Exception m) { MessageBox.Show(m.Message); }



                File.Delete(n);

            }

        }

and here is My Button Click event

   private  void EncMulti_Click(object sender, EventArgs e)

    {

        List<string> chooseditems = new List<string>();

        OpenFileDialog op = new OpenFileDialog();

        op.Multiselect = true;



        if(op.ShowDialog() == DialogResult.OK)

        {

            foreach (var item in op.FileNames)

            {

                chooseditems.Add(item);

            }

            ProgressMulti.Maximum = chooseditems.Count;

        }

        else { }



        for (int i = 0; i < chooseditems.Count; i++)

        {

            if (!SecurityCore.Encryptor.IsFileEncrypted(chooseditems[i]))

            {

                SecurityCore.Encryptor.ENC(chooseditems[i]);

                ProgressMulti.Value++;

            }

            else { ProgressMulti.Value++; }

        }





    }

i can't deal with this , i've tried Background workers With Invoke Method to
update Progress Bar Value but it's the same problem