Fields Contains Function. Determines whether the collection contains a specific item. ABCpdf .NET PDF Library. From ABCpdf .net previous page next page Contains Function Determines whether the collection contains a specific item. Syntax [C#] bool Contains(Field value) [Visual Basic] Function Contains(value As Field) As Boolean Params Name Description value The object to locate. return True if the object is found, otherwise false. Notes Determines whether the collection contains a specific item. Example None. previous page start next page