Question
AlexMartini on Fri, 16 Sep 2016 02:17:46
Hello. Can someone explain how countrows works below? Thanks.
IF( COUNTROWS( VALUES( Table1[Column] ) ) = 1, <expression> )
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Replies
Darren Gosbell on Fri, 16 Sep 2016 06:41:27
starting from the inside and working out
VALUES( Table1[Column] ) returns the distinct values of Table1[Column] in the current context
So if Table1[Column] is on rows or columns of a pivot table in each cell the VALUES(Table1[Column] will return a single value. Therefore checking COUNTROWS() = 1 is a way of testing if Table1[Column] is visible on the rows or columns (or if there is only 1 item selected in a filter) of a pivot table before evaluating <expression>.
Another way of doing the same thing is
IF( HASONEVALUE( Table1[Column] ) , <expression )