WCF - DataMember as DataContract

I have a [DataContract] class Template declared as follows:

[DataContract]
public abstract class Template
{
    [DataMember]
    public virtual int? Id { get; set; }

    [DataMember]
    public virtual byte[] TemplateDoc { get; set; }

    [DataMember]
    public virtual string Title { get; set; }

    [DataMember]
    public virtual TemplateStatusInfo TemplateStatus { get; set; }
}

[DataContract]
public class Template开发者_运维百科StatusInfo
{
    [DataMember]
    public virtual List<string> ValidCodes { get; set; }

    [DataMember]
    public virtual List<string> InvalidCodes { get; set; }

    [DataMember]
    public virtual string TemplateError { get; set; }
}

As you can see Template has a [DataMember] child object 'TemplateStatusInfo'.

I just want to make sure if it is valid in WCF to declare child object with both attributes- [DataMember] as well as [DataContract].

I am not getting any compile time error.

Please guide.

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It is correct what you have done. DataContract is applied to types, and DataMember to properties to specify if it should be included.