Positive and negative filter

Hi jvandyck ，

I updated your sample pbix file(see attachment), please check if that is what you want.

1. Create two dimension table use the field [Salary Code] of table Sheet1

Positive codes = VALUES('Sheet1'[Salary Code])

Negative codes = VALUES('Sheet1'[Salary Code])

2. Apply the fields in above dimension tables on the slicers(Positive and Negative)

3. Create a measure as below to judge if the enterprise should display or not

Measure = 
VAR _selent =
    SELECTEDVALUE ( 'Sheet1'[Enterprise] )
VAR _positivecodes =
    ALLSELECTED ( 'Positive codes'[Salary Code] )
VAR _negativecodes =
    ALLSELECTED ( 'Negative codes'[Salary Code] )
VAR _count1 =
    CALCULATE (
        DISTINCTCOUNT ( 'Sheet1'[Enterprise] ),
        FILTER (
            'Sheet1',
            'Sheet1'[Enterprise] = _selent
                && 'Sheet1'[Flag] = 1
                && 'Sheet1'[Salary Code] = SELECTEDVALUE ( 'Negative codes'[Salary Code] )
        )
    )
VAR _tab1 =
    CALCULATETABLE (
        VALUES ( 'Sheet1'[Enterprise] ),
        FILTER (
            'Sheet1',
            'Sheet1'[Enterprise] = _selent
                && 'Sheet1'[Flag] = 1
                && IF (
                    ISFILTERED ( 'Positive codes'[Salary Code] ),
                    'Sheet1'[Salary Code] IN _positivecodes,
                    1 = 1
                )
        )
    )
VAR _tab2 =
    CALCULATETABLE (
        VALUES ( 'Sheet1'[Enterprise] ),
        FILTER (
            'Sheet1',
            'Sheet1'[Enterprise] = _selent
                && 'Sheet1'[Flag] = 1
                && IF (
                    ISFILTERED ( 'Negative codes'[Salary Code] ),
                    'Sheet1'[Salary Code] IN _negativecodes,
                    1 = 1
                )
        )
    )
RETURN
    IF (
        NOT ( ISFILTERED ( 'Negative codes'[Salary Code] ) ),
        IF ( _selent IN _tab1, 1, 0 ),
        IF ( _selent IN EXCEPT ( _tab1, _tab2 ), 1, 0 )
    )

4. Create a table visual with visual-level filter condition(Measure is 1)

Best Regards