CODEWITHSUNDEEP
powerbidax
PowerStar
PowerStar

Reputation: 895

DATEDIFF Function Issue in DAX

I am trying call another measure from datediff function, but I am getting below error.

Below is what I have done.

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My SelectTime Measure definition is as below.

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Also I have an Intermediate table called Interval, Though which I will be selecting the TimePeriod by putting it in a slicer.

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Can someone please explain me what am I missing here, TIA.

Upvotes: 0

Views: 483

Answers (1)

RADO
RADO

Reputation: 8148

As far as I know, interval in DateDiff must be a constant, and can not be a variable. It's a limitation of DAX language which I hope Microsoft will improve at some point.

For now, you can use a different approach.

SelectTime = SELECTEDVALUE(Interval[TimePeriod])

Then:

MyDateDiff = 
VAR Start_Date = DATE(1984,11,01)
VAR End_Date = DATE(1089, 08, 08)
RETURN
SWITCH(
   [SelectTime],
    "Day", DATEDIFF(Start_Date, End_Date, DAY),
    "Month", DATEDIFF(Start_Date, End_Date, MONTH),
    "Week", DATEDIFF(Start_Date, End_Date, WEEK),
    DATEDIFF(Start_Date, End_Date, YEAR)
    )

Upvotes: 2

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