private void btnSave_Click(object sender, EventArgs e)
        {
            var en = new AddReceptionistEntity();
            var re = new AddReceptionistRepo();

            if (ValidateToSave() == true)
            {
                en.GeneratedId = txtId.Text;
                en.Name        = txtName.Text;
                en.Age         = int.Parse(txtAge.Text);
                en.Sex         = cmbSex.SelectedItem.ToString();
                en.Reference   = txtReference.Text;
                en.Address     = txtAddress.Text;
                en.Phone       = txtPhoneNo.Text;
                en.UserName    = txtUserName.Text;
                en.Password    = txtPassword.Text;

                lblId.Text         = txtId.Text;
                mtxtName.Text      = txtName.Text;
                mtxtAge.Text       = txtAge.Text;
                mtxtUserName.Text  = txtUserName.Text;
                mtxtPassword.Text  = txtPassword.Text;
                mtxtSex.Text       = cmbSex.SelectedItem.ToString();
                mtxtReference.Text = txtReference.Text;
                mtxtAddress.Text   = txtAddress.Text;
                mtxtPhone.Text     = txtPhoneNo.Text;

                re.AddReceptionist(en);
                pnlDetails.Visible = true;
            }
            else
            {
                MessageBox.Show("Invalid Input");
            }
        }
        private void btnUpdate_Click(object sender, EventArgs e)
        {
            var en = new AddReceptionistEntity();
            var re = new AddReceptionistRepo();

            en.GeneratedId = lblId.Text;
            en.Name        = mtxtName.Text;
            en.Age         = int.Parse(mtxtAge.Text);
            en.Sex         = mtxtSex.Text;
            en.Reference   = mtxtReference.Text;
            en.Address     = mtxtAddress.Text;
            en.Phone       = mtxtPhone.Text;
            en.UserName    = mtxtUserName.Text;
            en.Password    = mtxtPassword.Text;

            re.UpdateInfo(en);
        }