private async void btnSwitch_Click(object sender, EventArgs e)
        {
            if (UtilDB.CurrentDeployment == cboDepartment.SelectedIndex)
            {
                XtraMessageBox.Show(Cons.ErrorSwitchDepartToCurrent, Cons.CaptionError,
                                    MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }

            int    oldEmployeeId = int.Parse(txtEmployeeId.Text);
            string newDepartId   = UtilDB.GetDepartIdInFilterClause(cboDepartment.SelectedValue.ToString());

            SplashScreenManager.ShowForm(null, typeof(WaitFormCustom), true, true, false);
            if (await SwitchDepartment(oldEmployeeId, newDepartId) == false)
            {
                SplashScreenManager.CloseForm(false);
                XtraMessageBox.Show(Cons.ErrorSwitchDepart, Cons.CaptionError,
                                    MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
            else
            {
                SplashScreenManager.CloseForm(false);
                XtraMessageBox.Show(Cons.SuccessSwitchDepart, Cons.CaptionSuccess,
                                    MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
        }