Use of IEnumerable

Question

Hi,

If I have a collection of "Person" class and I want to get person objects using Foreach loop, I need to implement the "Person" class for IEnumerable. But I cannot understand the same thing I can do easily declaring a List<Person>. Then what advantage I am achieving while I implementing a class from IEnumerable?

regards

ronit_rc

Answer 1

"IEnumerable<T> represents a series of items that you can iterate over (using foreach, for example), whereas IList<T> is a collection that you can add to or remove from."

If all you are looping through the collection then it's probably better to use IEnumerable<T> over IList<T> especially if you are exposing an interface to other clients.

Answer 2

Hi,

 

Has your issue been resolved? Would you mind letting us know the result of the suggestions?

 

Now I will mark an answer, you can mark others that you think to be so useful to your issue.

If you still have any questions about this issue, please feel free to let me know.

Have a nice day!

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Paul Zhou [MSFT]
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