IList, IDictionary, ...

[shapper]

Hello,

What are the differences between IList and List or IDictionary and
dictionary?
The differences have something to do with Linq?

Which ones should I use?

Thanks,
Miguel

[Peter Morris]

Re: IList, IDictionary, ...

List realises IList, as do other classes such as
Array
ArrayList
List<T>
TreeNodeCollect ion

and others

If you want to accept a list of items in a parameter use IList, if you want
to create an object capable of holding a list of items you would be better
off with List<T>



--
Pete
====

http://mrpmorris.blogspot.com

http://www.capableobjects.com

[Ignacio Machin ( .NET/ C# MVP )]

Re: IList, IDictionary, ...

On Oct 3, 1:59 pm, shapper <mdmo...@gmail. comwrote:

Hello,
>
What are the differences between IList and List or IDictionary and
dictionary?
The differences have something to do with Linq?
>
Which ones should I use?
>
Thanks,
Miguel

Hi,

I* are interfaces, they do not provide an implementation. List
provides an implementation of that interface (the same with
IDictionary).
This allow for flexibility. For example you could implement a class
that implement IList but use different way to store the values for
example a linked list, or maybe using a tree.
The code that use those classes do not need to be changed cause it
uses a IList.