TreeView - What is the best framework ?

[Priyamvada]

Hello!

I am implementing a treeview for a huge hierarchial structure from Database.
1. Every node will fetch its children only when expanded.
2. It needs to have drag / drop and delete functionality.
3. It needs to support right click.
4. It can support pagination in tree.

Is there any framework library already available satisfying these features ?

Thanks

[tomws]

Have you looked at ExtJS?