Username field verification

Hi Tuan, We use EventsBooking 3.10.3 no Joomla 3.9.15 e PHP 7.2.The integration with Joomla is on. In the event registration form for new users, the username and password field appear but the user puts anything like space and accent. How can we prevent this or block this? Is it possible to create a rule for the username and password fields?
Wilson from Brazil.

Hi Wilson

At the moment, Events Booking only perform basic validation for username (like how Joomla validates it)

We do not have special validation rules for validating that field (the validation is base on Joomla core validation for username)

Tuan

Thanks Tuan.