private void buttonEncode_Click(object sender, EventArgs e)
        {
            var     selectedAlg = comboBoxAlgorithmus.SelectedIndex;
            ICrypto base64      = new Base64();
            ICrypto encrypter   = new Rijndael();
            ICrypto rot13       = new Rot13();

            if (entered == 1)
            {
                if (selectedAlg == 0)
                {
                    string encodedText = rot13.Encode(DecodedTextBox.Text);
                    CodedTextBox.Clear();
                    CodedTextBox.Text = encodedText;
                }
                if (selectedAlg == 1)
                {
                    string encodedText = base64.Encode(DecodedTextBox.Text);
                    CodedTextBox.Clear();
                    CodedTextBox.Text = encodedText;
                }
                if (selectedAlg == 2)
                {
                    string encodedText = encrypter.Encode(DecodedTextBox.Text);
                    CodedTextBox.Clear();
                    CodedTextBox.Text = encodedText;
                }
            }
            else
            {
                MessageBox.Show("Es ist kein Algorithmus ausgewählt", "Fehler", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }
        private void btEnter_Click(object sender, EventArgs e)
        {
            string      login      = tbLogin.Text.ToString();
            string      password   = tbPassword.Text.ToString();
            Table_Class tableClass = new Table_Class($"SELECT dbo.Auth ('{login}','{password}')");

            if (tableClass.table.Rows[0][0] != DBNull.Value)
            {
                Table_Class isSotrClass = new Table_Class($"SELECT ID_Sotrudnika, Name_Sotrudnika, Midlle_Name_Sotrudnika, Last_Name_Sotrudnika FROM [dbo].[Sotrudniki] WHERE [Sotrudnika_Login] = '{login}'");
                Program.intID = isSotrClass.table.Rows[0][0].ToString();
                FIO(isSotrClass.table.Rows[0][1].ToString(), isSotrClass.table.Rows[0][2].ToString(), isSotrClass.table.Rows[0][3].ToString());
                string Acess = tableClass.table.Rows[0][0].ToString();
                sot   = Acess[0].ToString();
                dol   = Acess[1].ToString();
                pokup = Acess[2].ToString();
                usl   = Acess[3].ToString();
                tovar = Acess[4].ToString();
                tovn  = Acess[5].ToString();
                trann = Acess[6].ToString();
                dog   = Acess[7].ToString();

                string   _pass  = "******";
                Rijndael cipher = new Rijndael();
                string   result = cipher.Encode(Acess.Trim(), _pass.Trim(), 256, true);

                RegistryKey registry = Registry.CurrentUser;
                RegistryKey key      = registry.CreateSubKey("Nevagno");
                key.SetValue("result", result);

                MainPage mainPage = new MainPage();
                mainPage.Show();
                this.Visible       = false;
                this.ShowInTaskbar = false;
            }
            else
            {
                MessageBox.Show("Не правильно введен логин или пароль!!!", "ИНЖПРОМТОРГ", MessageBoxButtons.OK,
                                MessageBoxIcon.Warning);
                tbPassword.Text = "";
            }
        }