What is best for Parent Child List

[C# Programming]

Hello Everybody,

I want to create a List for Parent Child Information. So I want to know that what is the best Object for Store Information of Parent Child.

I am confused with :

Arraylist, IList,List,Distionery or
else in your mind.


If you have any example then your most welcome to share your knoledge.


Thanks
If you can think then I Can.