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HASONEFILTER Function (DAX)

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Returns TRUE when the number of directly filtered values on columnName is one; otherwise returns FALSE.

Syntax

HASONEFILTER(<columnName>) 

Parameters

  • columnName
    The name of an existing column, using standard DAX syntax. It cannot be an expression.

Return Value

TRUE when the number of directly filtered values on columnName is one; otherwise returns FALSE.

Remarks

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

Example

The following example shows how to use HASONEFILTER() to return the filter for ResellerSales_USD[ProductKey]) if there is one filter, or to return BLANK if there are no filters or more than one filter on ResellerSales_USD[ProductKey]).

=IF(HASONEFILTER(ResellerSales_USD[ProductKey]),FILTERS(ResellerSales_USD[ProductKey]),BLANK())