server/AyaNova/models/DataListBase.cs

@@ -33,7 +33,7 @@ namespace AyaNova.Models
         public string Column { get; set; }
         public List<DataListColumnFilter> items { get; set; }
         public bool Any { get; set; }//means "or" the filter conditions
-        DataListFilterOption()
+        public DataListFilterOption()
         {
             items = new List<DataListColumnFilter>();
         }