Hi again,
Now I'm trying to filter one Drop Down list, but the difficult is that the target field is in other SP list.
I have a Machinery Screen:

And the TimeSheet Screen:

The field names and "imput text" are in Machinery Screen:
Fecha Alta = DataCardValue23 (On hire date)
Fecha Baja = DataCardValue24 (Off hire date)
Title = DataCardValue26 (Machinery)
And in the TimeSheet Screen:
Fecha = DataCardValue3 (Date)
Equipo = DataCardValue4 (Machinery)
The Dropdown list of the Mchinery in TimeSheet Screen is a lookup field from the Machinery Screen.
So, I don't want show the Machinery that is not "active", and the conditions will be depend of the date in TimeSheet screen and the dates in Machinery Screen.
I was thinking in two options:
Option 1 - Easiest (I think):
I have an hide field on Machinery Screen. That field is the Status, that calc depend of the dates (basicaly if the Off hire date is complete or not), the values are "Activo" or "Inactivo". For this option I tried diferent things, but doesn't work, like:
Items property over "Equipo" field on TimeSheet Screen:
Filter(Choices([@'ALQUILER EQUIPOS - HORARIOS Y TRABAJOS'].Equipo); Value in Filter ('ALQUILERES EQUIPOS'; estado = "Activo").Equipo)
"Alquiler Equipos - Horarios y Trabajos" (Source on TimeSheet)
"Alquiler Equipos" (Source on Machinery Screen)
Option 2 (I will preffer this one, but I don't know if is possible or is so hard to do it):
I don't want show the machinery: if "date" that you write is before to "on hire date" or later to "of hire date", and in case that the "off hire date" is blank don't show the machinery "on hire date" is later that the date on timesheet.
Thank you.