AlwaysIncludeInCube Property
Returns or sets whether the specified field set is always included in the PivotTable list's local cache. Set this property to True to ensure that the specified field set is included in the local cache. The default value is False. Read/write Boolean.
expression.AlwaysIncludeInCube
expression Required. An expression that returns a PivotFieldSet object.
Remarks
Setting this property to True for a field set ensures that calculated totals that depend on the field set will calculate correctly.