Hi Gopal,
May be i am not getting your question perfectly (means why you want to do that), you can get the result easily...
Anyway see the below code it may helps you:
public static class CollectionExtensions
{
public static ObservableCollection<T> ToObservableCollection<T>(this IEnumerable<T> coll)
{
var c = new ObservableCollection<T>();
foreach (var e in coll)
c.Add(e);
return c;
}
}
Hope it helps...