Common values on Dynamic selection

Measure 

CommonFruit = 
VAR NumberOfSelectedStates = COUNTROWS(ALLSELECTED(FruitsAndStates[State_Name]))
VAR FruitCount = COUNTROWS(FruitsAndStates)
VAR CommonCheck = IF(NumberOfSelectedStates=FruitCount,1,BLANK())
RETURN
CommonCheck

Filter on Visual using the measure

As always, there are many ways to do it. That's why I asked about your table structure. Hope this helps. Other than displaying the common fruits, if you want to count them, you could add another measure similar to this one and count the number of common fruits.

Hello Anonymous ,

Supposing states in your table might have different amount of common products and each state might have several occurancies of the same product. Also you might want to choose > 2 states..
Here are 3 measures that take into account the scenario above:

#1:
CommonStatePerFruitCount = 
CALCULATE(
    DISTINCTCOUNT('Common values on Dynamic selection'[State]),
    ALLSELECTED('Common values on Dynamic selection'),
    VALUES('Common values on Dynamic selection'[Fruit])
)

#2:
CommonFruitCount = 
VAR chosenStatesAmt = COUNTROWS(ALLSELECTED('Common values on Dynamic selection'[State]))
RETURN
IF(chosenStatesAmt > 1,
CALCULATE(
    DISTINCTCOUNT('Common values on Dynamic selection'[Fruit]),
    FILTER(
        ALLSELECTED('Common values on Dynamic selection'[State],'Common values on Dynamic selection'[Fruit]), 
        [CommonStatePerFruitCount] = chosenStatesAmt)
))

#3:
CommonFruitCheck = 
VAR chosenStatesAmt = COUNTROWS(ALLSELECTED('Common values on Dynamic selection'[State]))
RETURN
IF( [CommonStatePerFruitCount] = chosenStatesAmt, 1, BLANK())

Use CommonFruitCount as values in your Treemap and CommonFruitCheck for filtering the table with common products (see image below).

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