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arunaramana
Helper III
Helper III

automatically CALCULATE() function is surrounded to a measure when it is inovked in a DAX expression

Hello There, 

I found the following information when going through the "Context Transition" documentation by "Alberto Ferrari /SQLBI".

Would anyone please help me understand?

 

It is worth remembering that when you invoke a measure from a DAX expression, this is automatically surrounded by CALCULATE. The automatic CALCULATE, added by DAX, performs context transition and it might become source of errors in your code.

1 ACCEPTED SOLUTION
jdbuchanan71
Super User
Super User

When you start working with iterators it is important to remember to use CALCULATE in order to trigger context transition.  If you use a measure you don't need to include that.  Because the 3rd measure uses another measure in the iteration your don't need the CALCULATE around it to get the correct answer.

 

2021-10-24_15-31-53.jpg

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1 REPLY 1
jdbuchanan71
Super User
Super User

When you start working with iterators it is important to remember to use CALCULATE in order to trigger context transition.  If you use a measure you don't need to include that.  Because the 3rd measure uses another measure in the iteration your don't need the CALCULATE around it to get the correct answer.

 

2021-10-24_15-31-53.jpg

View solution in original post

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