DataContractSerializer: How to serialize classes/members without DataContract/DataMember attributes

Question

DataContractSerializer requires classes and members to be marked with the DataContract and DataMember attributes. However, in my case

Answer 1

Just mark the class with the [Serializable] attribute. Any members you don't want serialized mark with [NonSerialized]. Note that [Serializable] causes all fields to be serialized by default, where [DataContract] serialized no fields by default except those marked with [DataMember].