Power BI: How to dynamically change currency

问题

We have requirement to allow user to choose which currency he wants to see in the dashboard, like below example:

By default, it's GBP, if user changes to USD, we need to show the spend by USD. Under the hood we already have table InvoiceDetail which contains columns doing currency conversion beforehand:

SpendInGBP
SpendInUSD
SpendInEUR

I am not sure how I can map when user chooses different currency using ChicletSlicer to different Columns.

回答1:

If you have a table containing all formats available to apply this can be achieved.

I've created these tables as example:

MyTable

CurrencyFormat

In the MyTable table I've created two measures called Format and Total Sales.

Format = LASTNONBLANK ( CurrencyFormat[Format], 1 )

Total Sales = Total Sales = FORMAT(SUM(MyTable[Sales]),[Format])

Note Total Sales measures uses the [Format] measure to get the selected format from the slicer.

Adding the ChicletSlicer and setting FormatName column from CurrencyFormat table in Category pane, you should get the expected result.

Also note the formats I've used can vary from what you need, so you have to add some changes to the format strings, do a quick read of the documentation about it.

    Format            Region
$#,##0;($#,##0)     SpendInUSD
£#,##0;(£#,##0)     SpendInGBP
€#,##0;(€#,##0)     SpendInEUR

UPDATE: OP wants to get the sum of the right column based on the slicer.

Fortunately your table has a column for every currency, as you found with my proposal to map the slicer value to your measure, this is the final expression:

Spend =
IF (
    LASTNONBLANK ( 'Currency'[Code], 1 ) = "GBP",
    SUM ( Invoice[SpendGBP] ),
    IF (
        LASTNONBLANK ( 'Currency'[Code], 1 ) = "USD",
        SUM ( Invoice[SpendUSD] ),
        SUM ( Invoice[SpendEUR] )
    )
)

Let me know if you need further help.

来源：https://stackoverflow.com/questions/39150607/power-bi-how-to-dynamically-change-currency

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