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srdjanmish
Helper I
Helper I

Date calculation - empty fields

Hi guys...

 

I have a situation, a problem. I have a Dataset, created from dataflows, that has table (table name: DataTable1) with 2 date fields. One field is for document date, and the other is for Due date, for payment.

 

1. I created table "Calendar", with calendar function, and joined it with field "Document date".

2. I created a report with date slicer (Calendar date)

3. In table calendar, added: Max selected date = CALCULATE(MAX('Calendar'[Date]),ALLSELECTED('Calendar'))

 

Q: I need to calculate a column that is difference beween "Max selected date" and date in column "Due date". I tried with:

MeasureDifference = DATEDIFF(MAX('Datatable1'[DueDate]),'Calendar'[Max selected date],DAY). The Idea is to have value that shows how many days have passed from DueDate until max selected date...

 

I got results that are correct, but for some rows, result is EMPTY (no value). I know there are problems with dataflows and date formats, I experienced that, and changed cols in dataformat TEXT, and it corrected historical problems, but in this case, it is not working...

 

Anyone had similar problem, or maybe I can get needed value in different way?

 

Thanks in advanced..

1 ACCEPTED SOLUTION

Hi @srdjanmish ,

 

The reason for the blank value is that your dateslicer also filters the original table. Please refer to the measure below:

 

MeasureDifference =
VAR MaxSelectedDate =
    CALCULATE ( MAX ( 'Calendar'[Date] ), ALLSELECTED ( 'Calendar' ) )
RETURN
    CALCULATE (
        DATEDIFF ( MAX ( 'Datatable1'[DueDate] ), MaxSelectedDate, DAY ),
        CROSSFILTER ( 'Datatable1'[Document date], 'Calendar'[Date], NONE )
    )

 

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

 

Best Regards,

Dedmon Dai

View solution in original post

5 REPLIES 5
amitchandak
Super User IV
Super User IV

@srdjanmish , Try like


MeasureDifference =
Var _max =MAXX(ALLSELECTED('Calendar'),'Calendar'[Date]))
return
DATEDIFF(MAX('Datatable1'[DueDate]),_max,DAY)

 

You need to force a row context too for grand total refer

https://community.powerbi.com/t5/Community-Blog/Decoding-Direct-Query-in-Power-BI-Part-2-Date-Differ...



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This is not good... I need result for each row in DataTable1, difference between Max selected date and DueDate. With this calculation, I get Max(DueDate) and Max selected date difference...

 

Grand total does not matter, it is not needed...

Sorry, I tried as a column (without MAX on columnd DueDate), and as a measure (with MAX)...

As a measure, it shows good value, but still, on number of rows i get blank value, and DueDate exists...

 

Image:

 

2020-06-29 09_48_51-Window.png

 

Hi @srdjanmish ,

 

The reason for the blank value is that your dateslicer also filters the original table. Please refer to the measure below:

 

MeasureDifference =
VAR MaxSelectedDate =
    CALCULATE ( MAX ( 'Calendar'[Date] ), ALLSELECTED ( 'Calendar' ) )
RETURN
    CALCULATE (
        DATEDIFF ( MAX ( 'Datatable1'[DueDate] ), MaxSelectedDate, DAY ),
        CROSSFILTER ( 'Datatable1'[Document date], 'Calendar'[Date], NONE )
    )

 

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

 

Best Regards,

Dedmon Dai

View solution in original post

Thx @v-deddai1-msft ,

 

Somewhere in back of my brain i was aware of that filter rule, but, did not use that part of brain, obviously...

 

Thx again, problem solved, and solution accepted...

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