public static Dictionary <string, FieldDescriptor <Tbase> > GetAllTypeInstancesBasedOn <Tbase>(Group instance)
        {
            var t         = typeof(Tbase);
            var allFields = new Dictionary <string, FieldDescriptor <Tbase> >();
            var Thost     = instance.GetType();

            foreach (var Fi in Thost
                     .GetFields(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance)
                     .Where(fi => t.IsAssignableFrom(fi.FieldType)).ToList())
            {
                allFields.Add(
                    Fi.Name,
                    new FieldDescriptor <Tbase> {
                    Value      = (Tbase)Fi.GetValue(instance),
                    Attributes = Fi.GetCustomAttributes(typeof(Attribute), true).Cast <Attribute>().ToList()
                }
                    );
            }

            t = typeof(List <Tbase>);

            foreach (var Fi in Thost
                     .GetFields(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance)
                     .Where(fi => fi.FieldType.IsList()).ToList())
            {
                var tp = Fi.FieldType.GenericTypeArguments.First();
                if (tp == typeof(Tbase))
                {
                    var it = Fi.GetValue(instance);

                    var l        = (List <Tbase>)Fi.GetValue(instance);
                    var iterator = 0;
                    if (l != null)
                    {
                        l.ForEach(
                            i => allFields.Add(
                                Fi.Name + "_" + iterator++,
                                new FieldDescriptor <Tbase> {
                            Value      = i,
                            Attributes =
                                Fi.GetCustomAttributes(typeof(Attribute), true).Cast <Attribute>().ToList()
                        }
                                )
                            );
                    }
                }
            }

            return(allFields);
        }