Power Bi中如何根据过滤器切换两个表中的数据

Question

I have two tables which have counts and sales based on dates and one of them also have customer ID. The counts are not same when we see by customer and summary. I also have customer filter on my dashboard. What I want to achieve is if no customer is selected the count should come from summary table otherwise it should come from customer if multiple or one is selected in the filter.

Customer Table

Summary Table

Any hints, I have tried lookupvalue function but I cant put date as search value from date table.

Answer 1

It's much easier to use Measures, instead of creating calculated tables to obtain those metrics. Also, summarized tables would not have the same filter context your are looking for.

Measure 1

Total Customers = 
 DISTINCTCOUNT('Customer Table'[CustomerID])

Measure 2

Total Sales = 
 SUM ( 'Customer Table'[Sales])