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emiec's avatar
emiec
Icon for Microsoft Employee rankMicrosoft Employee
6 years ago
Solved

Help with DAX and Blank

Hi - I wrote the code below to assign an integer-based off L4 date.  For some L4 dates, they are blank.  To deal with blanks, I wrote an ISBLANK statement to return a 0. However, it doesn't.  Just re...
Need Help
  • v-frfei-msft's avatar
    v-frfei-msft
    6 years ago

    Hi emiec ,

     

    Please remove the Format to work on it. If we use Format, it will be text format, then we cannot get excepted result we need.

    Compliance = 
VAR now =
    DATEVALUE ( NOW () )
RETURN
    IF (
        ISBLANK ( qryCompliance[L4Date] ),
        0,
        SWITCH (
            TRUE (),
            'qryCompliance'[L4Date] = now, 1,
            'qryCompliance'[L4Date] < now, 1,
            'qryCompliance'[L4Date] > now, 2
        )
    )

     

    For more details, please check the pbix as attached.

     

edhans's avatar
edhans
Icon for Community Champion rankCommunity Champion
6 years ago

Are you sure they are blank? Empty is not the same as null, and I just ran a quick test:

isblank(null) is true

Isblank("") is false

 

but both visually show the same in DAX. They do not in Power Query. null shows null, and "" shows an empty cell.

 

emiec's avatar
emiec
Icon for Microsoft Employee rankMicrosoft Employee
6 years ago

I tried: 

CALCULATE(IF(ISBLANK(COUNTA(qryCompliance[FedRampSrgL2Date])),0,1))
and it return 0 for the empty/null cells.  If there is a date, it returns 1.
 
However, when I update the formula, it doesn't return a 0 for empty/null cells. 
 
Compliance_WW =
VAR now = format(NOW(),"MM/dd/YYYY")
RETURN
    IF(
        CALCULATE(IF(ISBLANK(COUNTA(qryCompliance[L2Date])),0,1)),
        SWITCH(
TRUE(),
FORMAT(qryCompliance[L2Date],"MM/dd/YYYY") = now, 1,
         Format(qryCompliance[L2Date],"MM/dd/YYYY") < now, 1,
            FOrmat(qryCompliance[L2Date],"MM/dd/YYYY") > now, 2
        )
    
    )
  • edhans's avatar
    edhans
    Icon for Community Champion rankCommunity Champion
    6 years ago

    Try this - the COUNTA() is the same as COUNT() in DAX unless it is a boolean field. It doesn't work like it does in Excel. 

     

     

    Compliance_WW =
VAR now =
    FORMAT (
        NOW (),
        "MM/dd/YYYY"
    )
RETURN
    IF (
        ISBLANK (
            MAX ( qryCompliance[L2Date] )
        ),
        0,
        SWITCH (
            TRUE (),
            FORMAT (
                qryCompliance[L2Date],
                "MM/dd/YYYY"
            ) = now, 1,
            FORMAT (
                qryCompliance[L2Date],
                "MM/dd/YYYY"
            ) < now, 1,
            FORMAT (
                qryCompliance[L2Date],
                "MM/dd/YYYY"
            ) > now, 2
        )
    )