MessageClass attribute The MessageClass attribute is used to define behavior that should apply to an entire class that is being defined (unless being overridden on an individual field, perhaps by a MessageProperty attribute. The MessageClass attribute supports the following properties: DefaultExcludeProperty The DefaultExcludeProperty is a bool property used to indicate whether public properties of the class it is being applied to should by default be excluded from the message definition. false means properties will be included by default unless the Exclude property of the MessageProperty attribute is set to true. Default: false PutInheritedPropertiesLast The PutInheritedPropertiesLast is a bool property that can be used to indicate that when your class inherits from another class that should be included in the message definition that the properties from the class being inherited from should be put at the end of the message. false means that properties of the class being inherited from should be put at the beginning of the message. Default: false Endianness The Endianness property indicates what the default endianness for a property should be. The choices are System, Big and Little. System matches the endianness of the system the MessageSerializer is running on. Default: System See also: PropertyRuleEndianness SerializationDefaults MessageProperty attribute