OptionalContentMembershipExpression Property

The content element visibility function.

Optional content membership expression defines the visibility as a boolean function of OCG indices in C syntax. The OCG index represents the position of the element in the OCG list which can be retreived by using OptionalContentGroups. Example: "1 || 2" means that the content element is visible if either OCG 1 or OCG 2 is ON.

Alternatively, the evaluated expression can be fetched via IsVisible.