How to find the Name of the Subfolder in a Directory

Question

I have asked this type of a question before but this one IS different. I need to find the root folder of a folder.

For example:

I get is

C:\Program Files (x86)\EdisonFactory\NetOffice
C:\Program Files (x86)\EdisonFactory\NetOffice
C:\Program Files (x86)\EdisonFactory\NetOffice
C:\Program Files (x86)\EdisonFactory\NetOffice
C:\Program Files (x86)\EdisonFactory\NetOffice\Plugins
C:\Program Files (x86)\EdisonFactory\NetOffice\Plugins
C:\Program Files (x86)\EdisonFactory\NetOffice\Plugins

I used this code before:

DsVersions.ASSEMBLY2Row row = dsVersions.ASSEMBLY2.NewASSEMBLY2Row();
row.FOLDER = Path.GetDirectoryName(fileName);

And then i found this code and thought it was the answer:

DsVersions.ASSEMBLY2Row row = dsVersions.ASSEMBLY2.NewASSEMBLY2Row();
DirectoryInfo directoryName = new DirectoryInfo(Path.GetDirectoryName(fileName));
row.FOLDER = directoryName.Name;

After this code i was getting this:

NetOffice
NetOffice
NetOffice
NetOffice
Plugins
Plugins
Plugins

It's close but again all i need is Plugins. I have tried doing Path and File but it won't work, I always get an error.

Solution 1

            string rootDir = folderBrowserDialog.SelectedPath;
            string fileDir = Path.GetDirectoryName(fileName);
            if (rootDir.Length < fileDir.Length)
                row.FOLDER = fileDir.Substring(rootDir.Length + 1);

That did the trick.

Solution 2

Based on the question and various comments, I infer that:

• You have a file path in hand
• That file is at the level above Plugins, i.e.:

C:\Program Files (x86)\EdisonFactory\NetOffice

• You need to get the directories under that directory, but not that directory itself

If these assumptions hold true, then this will do what you ask:

var directoryName = "C:\Program Files (x86)\EdisonFactory\NetOffice";

var directory = new DirectoryInfo(directoryName);

row.FOLDER = directory
    .GetDirectories()
    .Select(subDirectory => subDirectory.Name)
    .Single();

Solution 3

For example: you have the Sub Folder Plugins in Folder NetOffice, with the path:

C:\Program Files (x86)\EdisonFactory\NetOffice\Plugins.

And you are trying to only get the name of the folder plugins, you can try the following code:

string path = @"C:\Program Files (x86)\EdisonFactory\NetOffice";
DirectoryInfo Dictiontory = new DirectoryInfo(path);
DirectoryInfo []Dir = Dictiontory.GetDirectories();// this get all subfolder //name in folder NetOffice.
string dirName = Dir[0]; //var dirName get name from array Dir;