Help with exact string match

I'm looping through the folder appA and all of its subfolders.  Some of the folders are:

c:\dev\myapps\appA\bin\release
c:\dev\myapps\appA\source
c:\dev\myapps\appA\bin\debug
c:\dev\myapps\appA\obj\appAUI
c:\dev\myapps\appA\obj\appAUI\TempPE

I set a variable that will be used as a relative path for the appA folder
Root = "appA"

Inside the loop, I may be on this folder:
paramDirectoryPath = "c:\dev\myapps\appA\obj"

and I create the relative path on each iteration this way:

paramDirectoryPath.LastIndexOf(string.Concat("\\", Root))
which gives
"\appA\obj"

It creates a relative root path for all subfolders in the appA folder.

I run into a problem when
paramDirectoryPath = "c:\dev\myapps\appA\obj\appAUI"

The LastIndexOf() code will give
"appAUI" instead of "appA".

I need to somehow get an exact, case insensitive match.  IndexOf() doesn't do this.  What is a way that I can get around that?
brettrAsked:
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.

Guy Hengel [angelIII / a3]Billing EngineerCommented:
paramDirectoryPath.ToUpper().IndexOf( string.Concat("\\", Root).ToUpper())
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
brettrAuthor Commented:
Thanks.  I actually ended up restructuring how this works but that's not your fault.  :)
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.