Hint that indicates that ClientBehavior implementation posts back to the
server. Renderers that normally attach postback-related scripts
may choose to omit such scripts when a submitting ClientBehavior is
Returns the enum constant of this type with the specified name.
The string must match exactly an identifier used to declare an
enum constant in this type. (Extraneous whitespace characters are
name - the name of the enum constant to be returned.