c# - Specifying a DataType for a propertyinside a nested class? -

i'm making mvc5 website, , created viewmodel able access multiple models/classes in view. viewmodel contains classes generated entityframework. looks this:

public class personeelskaartvm {      public personeel personeel { get; set; }     public gebruikers gebruikers { get; set; }     public list<sysgroep> lidvansysgroep { get; set; }     public list<relsgrps> lidvanrelsgrps { get; set; }     public personeel_uren urenperjaar { get; set; }     public persoon_overw overwerkperjaar { get; set; }     public cboalgemeen status { get; set; }     public list<relafdeling> lidvanrelafdeling { get; set; }     public list<persoon_vakgroep> lidvanpersoonvakgroep { get; set; }     public list<vakgroep> lidvanvakgroep { get; set; }     public list<competentieentiteit> lidvanpersooncompetentie { get; set; }     public list<competenties> lidvancompetenties { get; set; }      //volle lijsten:     public list<cboalgemeen> alleburgstaten { get; set; }     public list<overwerk> alleoverwerk { get; set; }     public list<onreg_toeslag> alleort { get; set; }     public list<cboalgemeen> allestatussen { get; set; }     public list<cboalgemeen> allecontractvormen { get; set; }     public list<functie> allefuncties { get; set; } } 

traditionally used [datatype(datatype.date)] datetimes need date. how can achieve property in personeel? in personeel property called gebd, i'd set datatype personeel.gebd.

the same property in personeel called creditcard used [datatype(datatype.creditcard)]

however cannot change auto-generated ef classes.

//edit: because couldn't explain myself well, ill try explain myself better.

in example if have model webpage:

public class exampleviewmodel{     public persoon person{get;set;} } 

and persoon defined this:

public class persoon{     public datetime gebd {get;set;} } 

and can't change persoon class.

the output in textfield in html be: 04-05-1985 00:00:00 if access exampleviewmodel.person.gebd

if add datatype markup ( [datatype(datatype.date)] ), output be: 04-05-1985. without time suffix.

but because viewmodel has nested models in it, how can apply datatype markup in viewmodel manipulate property in in class, inside viewmodel.

i hope explained better.

you can redefine/override auto generated model

public class examplemodelmetadata {     [display(name = "birthday")]     [displayformat(dataformatstring = "{0:dd/mm/yyyy}", applyformatineditmode = true)]     public datetime birthday {get;set;} }  [metadatatypeattribute(typeof(examplemodelmetadata))] public partial class examplemodel { } 

this applied after refresh models database.