private void VideoDeviceManager_VisitationChecked(object sender, EventArgs e)
{
Client client = attendanceManager.GetClient(VideoDeviceManager.ScannedResult);
if (client == null)
{
messager.ErrorMessage("Клиент не найдет в базе данных.");
return;
}
try
{
attendanceManager.AddAttendance(client, AttendancePrice, AttendanceDate);
}
catch (InvalidOperationException ex)
{
messager.ErrorMessage(ex.Message);
}
}