Check if the column has alphabet dax

[toum]

Hello please I need your help on this, How can I check if the column has an alphabet, let's say I need to add a new column that returns False if it has an alphabet here is an example

[smpa01 · Accepted solution]

@toum  you need a white list and a measure like this

Measure = 
VAR curr =
    MAX ( 'Table'[Column1] )
RETURN
    IF (
        ISBLANK (
            CALCULATE (
                MAX ( num[alphabets] ),
                FILTER ( num, CONTAINSSTRING ( curr, num[alphabets] ) )
            )
        )
            = TRUE (),
        TRUE (),
        FALSE ()
    )

[toum]

Thank you, but do I have to create a table num!

[smpa01]

Yes