proxy - JSON.Net Serialization of NHibernate Proxies (NH 3.3.2.4000) -

i'm still having continuous difficulties getting json.net , nhibernate play nicely together. namely, in getting json.net serialize proxied nhibernate object.

i've followed recommendations here, both accepted answer , ammendments, no dice.

the biggest problem above solution seems modern versions of nhibernate using inhibernateproxyproxy interface create proxies (rather inhibernateproxy? can anyne else confirm this?), base class in case nhibernate.proxy.dynamicproxy.proxydummy, reveals nothing underlying object when attempt create json constract using custom scontract resolver, ie:

    protected override jsoncontract createcontract(type objecttype)     {         if (typeof(nhibernate.proxy.inhibernateproxy).isassignablefrom(objecttype))             return base.createcontract(objecttype.basetype);         else             return base.createcontract(objecttype);     } 

does have advice how deal inhibernateproxyproxy effectively?

the full solution:

in global.asax.cs :

 //define formatters         var formatters = globalconfiguration.configuration.formatters;         var jsonformatter = formatters.jsonformatter;         var settings = jsonformatter.serializersettings;         settings.formatting = formatting.indented;                    jsonformatter.serializersettings.referenceloophandling = newtonsoft.json.referenceloophandling.serialize;         jsonformatter.serializersettings.preservereferenceshandling  = newtonsoft.json.preservereferenceshandling.objects;         jsonformatter.serializersettings.contractresolver = new nhibernatecontractresolver();         //------------// 

and custom contract:

public class nhibernatecontractresolver : defaultcontractresolver {     private static readonly memberinfo[] nhibernateproxyinterfacemembers = typeof(inhibernateproxy).getmembers();      protected override list<memberinfo> getserializablemembers(type objecttype)     {         var members = base.getserializablemembers(objecttype);          members.removeall(memberinfo =>                           (ismemberpartofnhibernateproxyinterface(memberinfo)) ||                           (ismemberdynamicproxymixin(memberinfo)) ||                           (ismembermarkedwithignoreattribute(memberinfo, objecttype)) ||                           (ismemberinheritedfromproxysuperclass(memberinfo, objecttype)));          var actualmemberinfos = new list<memberinfo>();          foreach (var memberinfo in members)         {             var infos = memberinfo.declaringtype.basetype.getmember(memberinfo.name);             actualmemberinfos.add(infos.length == 0 ? memberinfo : infos[0]);         }          return actualmemberinfos;     }      private static bool ismemberdynamicproxymixin(memberinfo memberinfo)     {         return memberinfo.name == "__interceptors";     }      private static bool ismemberinheritedfromproxysuperclass(memberinfo memberinfo, type objecttype)     {         return memberinfo.declaringtype.assembly == typeof(inhibernateproxy).assembly;     }      private static bool ismembermarkedwithignoreattribute(memberinfo memberinfo, type objecttype)     {         var infos = typeof(inhibernateproxy).isassignablefrom(objecttype)                       ? objecttype.basetype.getmember(memberinfo.name)                       : objecttype.getmember(memberinfo.name);          return infos[0].getcustomattributes(typeof(jsonignoreattribute), true).length > 0;     }      private static bool ismemberpartofnhibernateproxyinterface(memberinfo memberinfo)     {         return array.exists(nhibernateproxyinterfacemembers, mi => memberinfo.name == mi.name);     }   protected override jsoncontract createcontract(type objecttype) {     if (typeof(inhibernateproxy).isassignablefrom(objecttype))     {         var otype = objecttype.getinterfaces().firstordefault(i => i.fullname.startswith("your.domain.namespace"));         return otype != null ? base.createcontract(otype) : base.createcontract(objecttype.basetype);     }     return base.createcontract(objecttype); } 

don't forget replace : "your.domain.namespace"