(Sometimes required, otherwise optional; inheritable; PDF 1.4) For choice fields that allow multiple selection (MultiSelect flag set), an array of integers, sorted in ascending order, representing the zero-based indices in the Opt array of the currently selected option items. This entry is required when two or more elements in the Opt array have different names but the same export value, or when the value of the choice field is an array; in other cases, it is permitted but not required. If the items identified by this entry differ from those in the V entry of the field dictionary (see below), the V entry takes precedence.

public const string I

Public Const I As String

public:
literal String^ I