nested class utility

amigo1 · September 6th, 2012, 03:46 AM

There are often situations in which i saw the use of nested classes .
While many say they are not needed.
In this question I would like to ask you when do we use a nested class

ChristianNagel · September 6th, 2012, 06:00 AM

if the nested class is only useful with the outer class.
In case the nested class is not public, it can only be used from within the outer class.
In the Professional C# book, in the Transactions-chapter you can see a Transaction<T> class with a nested ResourceManager. The resource manager is not accessible from the outside, and is used by the transaction type.

amigo1 · September 7th, 2012, 02:56 AM

Thank you very much.
It really helped me.
All the books-- I mean editions, contain too many useful materials.
for example the 2005 versions had a very good primer in oops.
In the 2008 book there was probably a more comprehensive coverage of the Array chapter.
Many novice programmers feel that apart from the usual "Professional C# 4" a bigger version of THIS VERY / or say C#5/6/...etc book should also come up
I am trying to go through each of them -- but I don't know when I will complete
regards
amigo1