Filters in Web Panel

I made an application to manage all the IT equipment of a company, I can list how many of each type of equipment there are in total, and also I can show only a specific type, such as notebooks or desktops, but I can not make a listing showing how many notebooks or printers I have in a certain branch. (I will attach prints). I would like that when I type the name of a branch in the second field, only the equipment of that branch would appear.

This is the code for my Event Load in the Web Panel on the Events tab

Event Load
    &EquipQtn = count(Nome_Equipamento)
    &FilialStartCheck = (Nome_Filial)
EndEvent    

This is my Grid code in the Web Panel

TipoEquipamentoNome like '%'+&EquipStartCheck.Trim()+'%';
Nome_Filial like '%'+&FilialStartCheck.Trim()+'%';