Looping a directory with subdirectories?

khalid Johnson

I am working on a windows application in VS2005 C#. The problem is that I will read a directory for files. I have a foreach so I can loop al the files in the directory. Know I wil do the same but for the subdirectories also. So I think there must be a second foreach and place the subdir in the method. Someone who can help me??

Here is some test code:

public void test(String path)
{
DirectoryInfo root = new DirectoryInfo(path);

DirectoryInfo[] dirs = root.GetDirectories();

String bla = "";
foreach (DirectoryInfo subDir in dirs)
{
bla += subDir.Name.ToString()+"-----";
}
richTextBox1.Text = bla;
}

3 Replies

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Jan Montano19y ago
You could use the DirectoryInfo.GetFiles() to get all the files in a directory

public void test(String path)

{

     DirectoryInfo root = new DirectoryInfo(path);

     DirectoryInfo[] dirs = root.GetDirectories("*", SearchOption.AllDirectories);

     String bla = "";

     foreach (DirectoryInfo subDir in dirs)

     {

          bla += subDir.FullName.ToString() + Environment.NewLine;

          FileInfo[] files = directory.GetFiles();

                foreach (FileInfo file in files)
                {
                    Console.WriteLine(file.FullName);
                }

     }

     rtb1.Text = bla;

}

if you want to get the files in the root for processing as well, use root.GetFiles() before the loop
khalid Johnson19y ago
Thanks for your support! I have only one problem and that is, that I will do something with all the files in the dir and subdirs. Know it is so that I only can do somenthing with the directories. So can you please explain that?
Scott Lysle19y ago
Hello:

Use the search option for GetDirectories:

public void test(String path)

{

     DirectoryInfo root = new DirectoryInfo(path);

     DirectoryInfo[] dirs = root.GetDirectories("*", SearchOption.AllDirectories);

     String bla = "";

     foreach (DirectoryInfo subDir in dirs)

     {

          bla += subDir.FullName.ToString() + Environment.NewLine;

     }

     rtb1.Text = bla;

}