gistfile1.cs

DirectoryInfo aDir = new DirectoryInfo(path);
FileInfo[] files;

if (aDir == null) 
{
  return false;
}

DirectoryInfo[] directories = aDir.GetDirectories();

for (i = 0; i < directories.Length; i++)
{
  files = directories[i].GetFiles();
  for (j = files.Length-1; j >= 0; j--)
  {
    files[j].Delete();
  }
}

files = aDir.GetFiles();
                
for(i=files.Length-1; i>=0; i--)
{
  files[i].Delete();
}