If Funktion

[Robertjde]

i have two galleries. Gallery 7 is controlled via a dropdown box and the date displayed (type date) should then be hidden in the 2nd gallery.
My attempt so far has been ...

Visible Button

If(ThisItem.Datum = Gallery7.AllItems.Datum;false;true)

[Robertjde]

Hi @WarrenBelz 
and you have no idea hide the button if a particular date is present?

[Robertjde]

I solved it like this ... Not nice, but it works!

@WarrenBelzThanks for your ideas and the help with my problem!

If(ThisItem.Datum < DatePicker2.SelectedDate;false;true; If(Weekday(ThisItem.Datum;Monday) >6;false ;true; If(ThisItem.Datum = DateTimeValue("24.12.") Or ThisItem.Datum = DateTimeValue("31.12.") Or ThisItem.Datum = DateTimeValue("01.01.2022");false;true)))

[WarrenBelz · Accepted solution]

@Robertjde ,

That is way beyond the question you asked

If(ThisItem.Datum = Gallery7.AllItems.Datum;false;true)

(which is what I responded to), but glad you got it working.