The DrillThroughFilter property of the MDStore interface contains a filter restricting the rows that can be returned by a drillthrough query.
String
Read/write
This property contains a filter restricting the rows that can be returned by a drillthrough query. The format of the string is identical to the format of the Boolean expression contained in an SQL WHERE clause. If a filter is specified, it is logically combined using AND with the tables specified by the DrillThroughJoins property. The format of the string in this property is provider-specific; it must be formatted according to the rules of the data source associated with the cube or partition.