bool EnumerationFilterExcludingItems
Controls if the specified DB values in the EnumerationFilter attribute should
exclude (default) or include the listed content.
If the specified DB values are part of the enumeration, then when:
TRUE (default), all corresponding enumeration entries will be excluded from the
objects list.
FALSE, only the corresponding enumeration entries will be included to the
objects list.
This is a Design property, with the default value TRUE.