ObservableCollection for Web froms

Question

I have not worked on WPF.I had that Observable collection works like events to LINQ.I also referred some libraries in codeplex (obtics) and MS Reactive Framework all are specific for WPF (I guess so).

My intension is to work on same techniques on Web forms.Say I have declared

List<Person> personList=
   new List<Person>()
               {
                new Person{Name="Jon",Age=33},
                new Person{Name="Skeet",Age=30},
                new Person{Name="Gravell",Age=31}
               };

When a new inserted to the list (only for insertion) then a GridView which takes personList as DataSource should be updated.How can we design events for such LINQ item.