DAX function

[wheelsshark]

Hi 

I have a datatable like

in Power BI I have a dax function to find Max of each Town(T1, T2, T3) - it gives (201,200,200). Depending on the slicer selection it shows this value

HighestTotal =

MAXX(

    KEEPFILTERS(VALUES('tempdumpdata'[Total])),

    CALCULATE(SUM('tempdumpdata'[Total]))

)

And Depending on this selection I write another DAX to diplay the related Town in another card,

LookUpTown = LOOKUPVALUE(

    tempdumpdata[Town],

    tempdumpdata[Total],

    [HighestTotal])

I get error when I try to get the Town for highest value 200, bz, T2 and T3 have highest value as 200. I see error like - 

"A table of multiple values was supplied where a single value was expected."

what should i do in this case

[wdx223_Daniel · Accepted solution]

if the lookup value is duplicated, lookupvalue will get a error.

LookupTown=VAR _h=[HighestTotal] RETURN CONCATENATEX(FILTER('tempdumpdata','tempdumpdata'[Total]=_h),'tempdumpdata'[Town],",")

[wheelsshark]

Thank you Daniel, it works. But I cant understand.

Highest Total is 200 for C1, while var _h is 200
Return concatenatex(filter('tempdumpdata', 'tempdumpdata'[Total] = 200), 'tempdumpdata[Town] - this gives T3 and T2. I need only T3.

bz the slicer selection is C1. Can you help me understand

[wdx223_Daniel]

the function of LOOKUPVALUE do not consider any filters outsider. it always lookup all the table.

[Anonymous · Accepted solution]

HI @wheelsshark,

Perhaps you can add a new condition to compare with the name field and selection to filter the result.

LookupTown =
VAR _h = [HighestTotal]
VAR selection =
    VALUES ( Table[Name] )
RETURN
    CONCATENATEX (
        FILTER ( 'tempdumpdata', 'tempdumpdata'[Total] = _h && [Name] IN selection ),
        'tempdumpdata'[Town],
        ","
    )

Regards,

Xiaoxin Sheng

[wdx223_Daniel · Accepted solution]

if the lookup value is duplicated, lookupvalue will get a error.

LookupTown=VAR _h=[HighestTotal] RETURN CONCATENATEX(FILTER('tempdumpdata','tempdumpdata'[Total]=_h),'tempdumpdata'[Town],",")