You can specify relative path information with the path parameter. Relative path information is interpreted as relative to the current working directory, which you can determine by using the Directory.GetCurrentDirectory method.

The erload:System.IO.Directory.EnumerateFileSystemEntries and erload:System.IO.Directory.GetFileSystemEntries methods differ as follows: When you use erload:System.IO.Directory.EnumerateFileSystemEntries, you can start enumerating the collection of entries before the whole collection is returned; when you use erload:System.IO.Directory.GetFileSystemEntries, you must wait for the whole array of entries to be returned before you can access the array. Therefore, when you are working with many files and directories, erload:System.IO.Directory.EnumerateFiles can be more efficient.

The returned collection is not cached; each call to the IEnumerable`1.GetEnumerator on the collection will start a new enumeration.