Retrieve the hashed password from the database to the text

I want to do the Forgot your password? in the program, I already could retrieve the username and password that hashed from the database and send it to the email user (I use my own email as user), but what I am getting on the email is still the hashed password that actually stored in the database (not the actual password before it hashed), and once I could not figured it out how to retrieve the actual password and I am getting is either false (boolean) or the hashed password.

Could you guys help me?

Here is the code that I am using:

Below code is for retrieve the information: (SystemManager class)

public static void RecoverMember(string _value1, string _selectedIndex, string _value2, Form _windowsForm, TextBox _windowsTextBox)
        {
            using (OleDbConnection connection = new OleDbConnection(connectionString))
            {
                string query = "SELECT * FROM [Member] WHERE [Email] = @Email";

                connection.Open();

                using (OleDbCommand command = new OleDbCommand(query, connection))
                {
                    command.Parameters.Add("@Email", OleDbType.VarChar);
                    command.Parameters["@Email"].Value = _value1;

                    using (OleDbDataReader reader = command.ExecuteReader())
                    {
                        if (reader.Read())
                        {
                            UserInformation.FirstName = (string)reader["FirstName"];
                            UserInformation.LastName = (string)reader["LastName"];
                            UserInformation.Name = (string)reader["Username"];

                            string securityQuestion = (string)reader["SecurityQuestion"];
                            string securityAnswer = (string)reader["SecurityAnswer"];
                            string password = (string)reader["Password"];

                            _isValidRecoverSecurityQuestion = BCrypt.ValidateHash(_selectedIndex, securityQuestion);
                            _isValidRecoverSecurityAnswer = BCrypt.ValidateHash(_value2, securityAnswer);
                            _recoveredPassword = BCrypt.ValidateHash(password, password);

                            UserInformation.Password = Convert.ToString(_recoveredPassword);

                            if (_isValidRecoverSecurityQuestion && _isValidRecoverSecurityAnswer)
                            {
                                Authenticate _authenticate = new Authenticate();

                                _authenticate.ShowDialog();

                                ShowMessageBox("Your credentials has been sent to your email.", "Success", 2);

                                SendRecoverCredentials(_value1);

                                _windowsForm.Hide();

                                _windowsForm.Close();
                            }

                        }

                        if (!_isValidRecoverSecurityQuestion || !_isValidRecoverSecurityAnswer)
                        {
                            Authenticate _authenticate = new Authenticate();

                            _authenticate.ShowDialog();

                            ShowMessageBox("Either your email, security question or answer incorrect. Please try again.", "Error", 1);

                            ClearTextBoxes(_windowsForm.Controls);

                            _windowsTextBox.Focus();
                        }

                        reader.Close();
                    }
                }

                connection.Close();
            }
        }

Below code is for send the email to the user: (SystemManager class)

public static void SendRecoverCredentials(string _to)
        {
            try
            {
                SmtpClient _smtp = new SmtpClient();

                MailMessage _message = new MailMessage();

                _message.From = new MailAddress("credentialhelper@gmail.com", "SIA - Point of Sales - Support -");
                _message.To.Add(new MailAddress(_to, UserInformation.FirstName + " " + UserInformation.LastName));
                _message.Subject = "Credentials Recover";
                _message.Body = "Dear " + UserInformation.FirstName + " " + UserInformation.LastName + "," +
                    "\n\n\nBelow are your credentials:" + "\n\n\n\n" + "Username: " + UserInformation.Name + "\nPassword: " + UserInformation.Password +
                    "\n\n\n\nTo avoid for the future message been moved to the spam or junk folder, please add credentialhelper@gmail.com to be your contact list." +
                    "\n\n\n*** This is an automatically computer generated message, please do not reply to this message ***";

                _smtp.Port = 587;
                _smtp.Host = "smtp.gmail.com";
                _smtp.EnableSsl = true;
                _smtp.UseDefaultCredentials = false;
                _smtp.Credentials = new NetworkCredential("credentialhelper@gmail.com", "(the password does not shown in here)");

                _smtp.DeliveryMethod = SmtpDeliveryMethod.Network;
                _smtp.Send(_message);

                ShowMessageBox("Your message has been successfully sent.", "Success", 2);
            }

            catch (Exception ex)
            {
                ShowMessageBox("Message : " + ex + "\n\nEither your e-mail or password incorrect. (Are you using Gmail account?)", "Error", 1);
            }
        }

And here is where I am using it for: (Recover form)

// button1_Click is for the Submit button

void button1_Click(object sender, EventArgs e)
        {
            if (this.textBox1.Text == string.Empty || string.IsNullOrWhiteSpace(this.textBox1.Text))
            {
                SystemManager.ShowMessageBox("E-mail required.", "Information", 2);
            }

            else if (_isCheckedEmail != true)
            {
                SystemManager.ShowMessageBox("You have to check the validity of your e-mail before proceed.", "Information", 2);
            }

            else if (this.textBox2.Text == string.Empty || string.IsNullOrWhiteSpace(this.textBox2.Text))
            {
                SystemManager.ShowMessageBox("Security Answer required.", "Information", 2);
            }

            else
            {   // textBox1 is for the e-mail field
                // comboBox1 is for the security question field
                // textbox2 is for the security answer field

                SystemManager.RecoverMember(this.textBox1.Text, this.comboBox1.Text, this.textBox2.Text, this, this.textBox1);
            }

        }

And here is the designer of the Recover Form:

//CheckValidity button is for the check whether the e-mail is valid or
 not. //Reset button is for clear the textboxes in the form.

And here is the database image along with the email message:

So sorry for the long posting. And I really appreciate your answer. Thank you very much.

UPDATE 1:

If I change the Password: UserInformation.Password from

_message.Body = "Dear " + UserInformation.FirstName + " " + UserInformation.LastName + "," +
                        "\n\n\nBelow are your credentials:" + "\n\n\n\n" + "Username: " + UserInformation.Name + "\nPassword: " + UserInformation.Password +
                        "\n\n\n\nTo avoid for the future message been moved to the spam or junk folder, please add credentialhelper@gmail.com to be your contact list." +
                        "\n\n\n*** This is an automatically computer generated message, please do not reply to this message ***";

to be Password: _recoveredPassword.

What I am getting is that the hashed password is shown instead of false.