Question

Consider a scenario like this

Root

|—–a

|—–b (current folder)

|—–c

|—–etc…

• The current folder is b
• We need to find all folders on the same level as b.
• In other words, What’s the best method to get ‘a‘ and ‘c‘ ?

Answer 1

I would follow steps similar to @jstarek, but I would drop the second one.

Get the full path to folder b, strip out folder b from the path, list the directories in that path, and exclude folder b from the resulting set.

If you want information more specific to a programming language, please cite which one you are using. You mentioned WinForms so I would guess it’s going to be .Net? If so, the .Net framework already has classes designed to complete this task.

EDIT:

If you’re using .Net take a look at the DirectoryInfo class. It has a GetDirectories method that allows you to list the directories underneath a given directory very easily. It also has overloads for searching etc.

When I have used this in the past, exceptions can be thrown if the user running the program does not have permissions on the folder in question.

Here is a link to a sample of the DirectoryInfo GetDirectory method: http://msdn.microsoft.com/en-us/library/s7xk2b58.aspx#Y798