Used by expressions for calculation items to retrieve the format string of the measure that is in context.
This function currently applies only to SQL Server 2019 Analysis Services CTP 2.3 and later.
A string holding the format string of the measure that is currently in context when the calculation item is evaluated.
This function can only be referenced in expressions for calculation items in calculation groups. It is designed to be used by the Format String Expression property of calculation items.
The following expression is evaluated by the Format String Expression property for a calculation item. If there is a single currency in filter context, the format string is retrieved from the DimCurrency[FormatString] column; otherwise the format string of the measure in context is used.
SELECTEDVALUE( DimCurrency[FormatString], SELECTEDMEASUREFORMATSTRING() )