Model validation with data annotations

Question

I am looking for a working example of the above, so far I have the following, (the model class is obviously separate), not sure how best to proceed

 

public class ApplicantMetadata

{

[Required]

public int APPLICANT_ID;

[Required]

[StringLength(100)]

public string APPLICANT_Title; }

 

[MetadataType(typeof(ApplicantMetadata))]

public partial class Applicant { }