List<MyClass>.Reverse() ---> foreach statement cannot operate on variables of type 'void' because 'void' does not contain a public definition for 'GetEnumerator'

Hi There,

.NET 2.0+

List<MyClass> selectedList = new List<MyClass>();

foreach (MyClass item in selectedList)
{
    // This compiles.
}

foreach (MyClass item in selectedList.Reverse())
{
    // Error: foreach statement cannot operate on variables of type 'void' because 'void' does not contain a public definition for 'GetEnumerator'
}

How do I fix this from a layman point of view?

thanks
LVL 1
ValimaiAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

JimBrandleyCommented:
List.Reverse() is a method invocation that has a return value of void; i.e. It operates on the list, but doesn't return a new List. If you chage it to:
selectedList.Reverse();
foreach (MyClass item in selectedList)
{
     // do stuff here
}

It will compile and run.

Jim
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
ValimaiAuthor Commented:
Hi Jim, thanks a lot.
0
JimBrandleyCommented:
My pleasure. Good luck.

Jim
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
.NET Programming

From novice to tech pro — start learning today.