private void btnJoin_Click(object sender, RoutedEventArgs e)
        {
            MemberManager memberManager = new MemberManager();
            LoginData     loginData     = new LoginData();

            if (txtPhone.Text.Trim().Length < 10 || txtPassword.Text.Trim().Equals("") || txtName.Text.Trim().Equals("") || tbWage.Text.Trim().Equals(""))
            {
                return;
            }

            loginData.Phone     = txtPhone.Text.Trim();
            loginData.Password  = txtPassword.Text.Trim();
            loginData.Name      = txtName.Text.Trim();
            loginData.Wage      = tbWage.Text.Trim();
            loginData.Authority = cbAuthority.SelectedIndex + 1;
            loginData.Task      = cbTask.SelectedIndex;

            if (loginData.Phone.Equals(memberManager.Select(loginData).Phone))
            {
                MyMessageBox.createMessageBox(1, "핸드폰번호가 중복됩니다.", "");
                return;
            }

            memberManager.Insert(loginData);
            memberManager.Create(loginData);

            txtName.Clear();
            txtPassword.Clear();
            txtPhone.Clear();
            tbWage.Clear();

            TransitionPage.wageManagement.InitNameComboBox();
            initCBSecession();

            MessageBox.Show("가입이 완료되었습니다.");
        }