How to get all Directories(folders) and Sub directories(sub folders) under a Directory in C#?

Sometimes, we may get requirements to get all directory and subdirectory under a specific directory.

We can use GetDirectories() method in Directory class with the wildcard character "*". This wildcard will list all the directoried under the current directory.

The following little code snippet will help us to do the same.

string[] dirs = Directory.GetDirectories(@"E:\Technicals\Samples","*",SearchOption.AllDirectories);
foreach (string dir in dirs)
        {
Response.Write(dir + "<br>");
        }

The above code will print all the directories and sub directories under the folder E:\Technicals\Samples.

You need to include System.IO namespace for the code to work.