private void ChangePassword_Button_Click(object sender, EventArgs e)
        {
            string p1 = NewPassword_TextBox.Text;
            string p2 = ConfirmPassword_TextBox.Text;

            if (p1.CompareTo(p2) != 0)
            {
                MessageBox.Show("Passwords do not match. Please re-enter your password and try again.", "Password Error");
            }
            else
            {
                int x = controllerObj.ChangePassword(Username_TextBox.Text, CurrentPassword_TextBox.Text, p1);
                if (x == -1)
                {
                    MessageBox.Show("Username or password incorrect.", "Error");
                }
                else
                {
                    this.Hide();
                    MessageBox.Show("Password has been updated successfully.");
                }
            }
        }