The following tables list the members exposed by the RequiredAttribute type.

Name Description
Public property AllowEmptyCollections Gets or sets a value indicating whether to threat empty collections as valid.
Public property InvalidInputMessage Gets or sets the invalid input message. (inherited from ValidateAttribute).
Public property TypeId When implemented in a derived class, gets a unique identifier for this Attribute. (inherited from Attribute).
Public property ValidationOrder Gets or sets the validation order. (inherited from ValidateAttribute).