.NET built-in interfaces

[RP]

There are various built-in interfaces, like: IEnumerable, IDisposable,
IDataReader etc. For what they are meant for and when to use them?
Where I can find examples on these?

 

[Nicholas Paldino [.NET/C# MVP]]

You might want to check the documentation at http://msdn2.microsoft.com.
It will have all of the documentation you need for every type in the
framework (and a lot more).