IF SelectedValue is Blank, Blank, otherwise check if Number, otherwise output...

[Tontaube2]

How do I write this in proper DAX?

So far I´ve tested several methods - but I always get an error or an syntax-error

Test =

IF (

     ISBLANK (SELECTEDVALUE( 'FaktKPI'[BewertungKPI] ), BLANK()), IF (ISNUMBER (SELECTEDVALUE ( FaktKPI[BewertungKPI] ), (SELECTEDVALUE ( FaktKPI[BewertungKPI] ),"yes"

)

[Tontaube2]

Thank you very much!

[AlexisOlson · Accepted solution]

Cleaning up your mismatching parentheses and using a variable, you can write your formula like this:

Test =
VAR _KPI = SELECTEDVALUE ( 'FaktKPI'[BewertungKPI] )
RETURN
    IF (
        ISBLANK ( _KPI ),
        BLANK (),
        IF (
            ISNUMBER ( _KPI ),
            _KPI,
            "yes"
        )
    )

 This can be further simplified as

Test =
VAR _KPI = SELECTEDVALUE ( 'FaktKPI'[BewertungKPI] )
RETURN
    IF ( ISBLANK ( _KPI ) || ISNUMBER ( _KPI ), _KPI, "yes" )

However, you're still likely to have a problem since IF cannot output text in some cases and numbers in other cases. It has to output the same data type for both cases. Thus you need to either format your number as text or else use a number instead of "yes". For example, if you want to show your KPI as a percentage with two decimal places, you could use FORMAT to convert the number to text like this:

Test =
VAR _KPI = SELECTEDVALUE ( 'FaktKPI'[BewertungKPI] )
RETURN
    IF (
        ISBLANK ( _KPI ) || ISNUMBER ( _KPI ),
        FORMAT ( _KPI, "0.00%" ),
        "yes"
    )

[tamerj1]

Test =
IF (
NOT ISBLANK ( SELECTEDVALUE ( 'FaktKPI'[BewertungKPI] ) ),
IF (
ISNUMBER ( SELECTEDVALUE ( 'FaktKPI'[BewertungKPI] ) ),
SELECTEDVALUE ( FaktKPI[BewertungKPI] ),
"yes"
)
)