HASONEFILTER
Applies to: Calculated column Calculated table Measure Visual calculation
Returns TRUE when the number of directly filtered values on columnName is one; otherwise returns FALSE.
Syntax
HASONEFILTER(<columnName>)
Parameters
Term | Definition |
---|---|
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
This function is similar to HASONEVALUE() with the difference that HASONEVALUE() works based on cross-filters while HASONEFILTER() works by a direct filter.
This function is not supported for use in DirectQuery mode when used in calculated columns or row-level security (RLS) rules.
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())