If function (True/False) based on date slicer

Hi Krexx ,

According to my understand , you want to dynamically display True()/False() based on Slicer ,right?

Firstly , you need to create a calendar table using :

DateSlicer =

CALENDAR ( "2019/1/1", "2019/12/31" )

Make sure the data type of Date of birth is “Date”

Then use the following formula:

Measure =
VAR _maxDate =
    MAX ( 'DateSlicer'[Date] )
VAR _minDate =
    MIN ( 'DateSlicer'[Date] )
RETURN
    IF (
        MAX ( 'DateTable'[Date of birth] ) > _minDate
            && MAX ( 'DateTable'[Date of birth] ) <= _maxDate,
        TRUE (),
        FALSE ()
    )

My visualization looks like this:

Did I answer your question ? Please mark my reply as solution. Thank you very much.

If not, please upload some insensitive data samples and expected output.

Best Regards,

Eyelyn Qin