/// <summary>
 /// Is it the same as the input one
 /// </summary>
 /// <param name="constraints">The one to be compared with.</param>
 /// <returns></returns>
 public bool IsTheSameAs(UserAssociationSetConstraints constraints)
 {
     return FromUserIDWrap.KeyValue == constraints.FromUserIDWrap.KeyValue && ToUserIDWrap.KeyValue == constraints.ToUserIDWrap.KeyValue && TypeIDWrap.KeyValue == constraints.TypeIDWrap.KeyValue;
 }
 /// <summary>
 /// Is it the same as the input one
 /// </summary>
 /// <param name="constraints">The one to be compared with.</param>
 /// <returns></returns>
 public bool IsTheSameAs(UserAssociationSetConstraints constraints)
 {
     return(FromUserIDWrap.KeyValue == constraints.FromUserIDWrap.KeyValue && ToUserIDWrap.KeyValue == constraints.ToUserIDWrap.KeyValue && TypeIDWrap.KeyValue == constraints.TypeIDWrap.KeyValue);
 }
 public static async Task<string> GetMembers(string nhubId, string userId, string set, string qexpr, string prevlast, bool outgoing)
 {
     JavaScriptSerializer jser = new JavaScriptSerializer();
     dynamic sobj = jser.DeserializeObject(set) as dynamic;
     DataContractJsonSerializer ser1 = new DataContractJsonSerializer(typeof(QueryExpresion));
     DataContractJsonSerializer ser2 = new DataContractJsonSerializer(typeof(User));
     var ser3 = new JavaScriptSerializer();
     System.IO.MemoryStream strm = new System.IO.MemoryStream();
     byte[] sbf = System.Text.Encoding.UTF8.GetBytes(qexpr);
     strm.Write(sbf, 0, sbf.Length);
     strm.Position = 0;
     var _qexpr = ser1.ReadObject(strm) as QueryExpresion;
     UserServiceProxy svc = new UserServiceProxy();
     UserSet _set = new UserSet();
     _set.PageBlockSize = int.Parse(sobj["pageBlockSize"]);
     _set.PageSize_ = int.Parse(sobj["pageSize"]);
     if (sobj.ContainsKey("setFilter"))
         _set.SetFilter = sobj["setFilter"];
     User _prevlast = null;
     if (!string.IsNullOrEmpty(prevlast))
     {
         strm = new System.IO.MemoryStream();
         sbf = System.Text.Encoding.UTF8.GetBytes(prevlast);
         strm.Write(sbf, 0, sbf.Length);
         strm.Position = 0;
         _prevlast = ser2.ReadObject(strm) as User;
     }
     var cntx = Cntx;
     var result = await svc.GetPageItemsAsync(cntx, _set, _qexpr, _prevlast);
     var ar = new List<dynamic>();
     string appId = ApplicationContext.App.ID;
     UserAppMemberServiceProxy mbsvc = new UserAppMemberServiceProxy();
     MemberCallbackServiceProxy cbsvc = new MemberCallbackServiceProxy();
     UserAssociationServiceProxy uasvc = new UserAssociationServiceProxy();
     DateTime dt = DateTime.UtcNow.AddMinutes(-ApplicationContext.OnlineUserInactiveTime);
     foreach (var e in result)
     {
         var cond = new UserAppMemberSetConstraints
         {
             ApplicationIDWrap = new ForeignKeyData<string> { KeyValue = appId },
             UserIDWrap = new ForeignKeyData<string> { KeyValue = e.ID }
         };
         var memb = (await mbsvc.ConstraintQueryAsync(cntx, new UserAppMemberSet(), cond, null)).SingleOrDefault();
         bool notify;
         if (outgoing)
         {
             var notifier = await cbsvc.LoadEntityByKeyAsync(cntx, "System", nhubId, appId, e.ID);
             notify = memb.LastActivityDate > dt && notifier != null && notifier.ConnectionID != null && !notifier.IsDisconnected;
         }
         else
             notify = false;
         var cond2 = new UserAssociationSetConstraints();
         if (!outgoing)
         {
            cond2.FromUserIDWrap = new ForeignKeyData<string> { KeyValue = userId };
            cond2.ToUserIDWrap = new ForeignKeyData<string> { KeyValue = e.ID };
            cond2.TypeIDWrap = null;
         }
         else
         {
             cond2.FromUserIDWrap = new ForeignKeyData<string> { KeyValue = e.ID };
             cond2.ToUserIDWrap = new ForeignKeyData<string> { KeyValue = userId };
             cond2.TypeIDWrap = null;
         }
         var assocs = await uasvc.ConstraintQueryAsync(cntx, new UserAssociationSet(), cond2, null);
         var a = new
         {
             data = e,
             member = memb,
             hasIcon = memb != null && !string.IsNullOrEmpty(memb.IconMime),
             notify = notify,
             types = new List<int>()
         };
         foreach (var assoc in assocs)
             a.types.Add(assoc.TypeID);
         ar.Add(a);
     }
     string json = ser3.Serialize(ar);
     return json;
 }