How to quickly check if folder is empty (.NET)?

Question

I have to check, if directory on disk is empty. It means, that it does not contain any folders/files. I know, that there is a simple method. We get array of FileSystemInfo\'

Answer 1

Since you are going to work with a DirectoryInfo object anyway, I'd go with an extension

public static bool IsEmpty(this DirectoryInfo directoryInfo)
{
    return directoryInfo.GetFileSystemInfos().Count() == 0;
}