How to return table based on condition with DAX?

[ckwongak]

Hi all,

I have two slicer, one slicer contains the full name of country (for e.g. Japan), one table contains the mapping of the currency for that country and one table contains only one row "USD" as the currency

I want to have one slicer with options below:

If one country is selected, I will show two currency (e.g. if japan is selected, I will show JPY, USD)

If more than one country is selected, I will always show USD 

How to do this in Power BI?

[v-rzhou-msft · Accepted solution]

Hi @ckwongak ,

My Sample is as below.

Currency:

DimCountry:

Table:

Data model:

Measure:

Currency Appear when only one country is selected = 
VAR _SELECTVALUE =
    SELECTEDVALUE ( 'Currency'[Currency] )
VAR _COUNT =
    COUNTAX ( VALUES ( DimCountry[Country] ), [Country] )
RETURN
    IF ( _COUNT = 1, CALCULATE ( SUM ( 'Table'[USD] ) ) * _SELECTVALUE )

Result is as below.

Best Regards,
Rico Zhou

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