DAX Function Guide

HASONEFILTER
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Sam McKay

CEO & Founder

How does the HASONEFILTER work?
HASONEFILTER function (DAX) returns TRUE when the number of directly filtered values on columnName is one; otherwise returns FALSE.
HASONEFILTER Formula Syntax
HASONEFILTER(<columnName>)
How do you use the HASONEFILTER?

It returns TRUE when the number of directly filtered values on columnName is one and only one. Otherwise, returns FALSE.

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Considerations when using the HASONEFILTER?

This function is similar to HASONEVALUE() with the difference that HASONEVALUE() works based on cross-filters while HASONEFILTER() works by a direct filter.

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Formula examples using the HASONEFILTER
=IF(HASONEFILTER(ResellerSales_USD[ProductKey]),FILTERS(ResellerSales_USD[ProductKey]),BLANK())
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