Recursively retrieve folders and all files in subfolders

Recursively retrieve folders and all files in subfolders

1 ArrayList arraylist = new ArrayList ();
2 private void GetSubDir (string s1) // recursively retrieve all file names in the folder and store them in an array
3 {
4 string [] sDir = Directory. GetDirectories (s1); // obtain the subdirectory name
5 string [] sFile = Directory. GetFiles (s1); // get the file
6 for (int I = 0; I <sFile. Length; I ++)
7 {
8 arraylist. Add (sFile); // Add the file to the array
9}
10 for (int I = 0; I <sDir. Length; I ++)
11 {
12 GetSubDir (sDir );
13}
14}