Multiple file-extensions searchPattern for System.IO.Directory.GetFiles

Question

What is the syntax for setting multiple file-extensions as searchPattern on Directory.GetFiles()? For example filtering out files

Answer 1

I would use the following:

var ext = new string[] { ".ASPX", ".ASCX" };
FileInfo[] collection = (from fi in new DirectoryInfo(path).GetFiles()
                         where ext.Contains(fi.Extension.ToUpper())
                         select fi)
                         .ToArray();

EDIT: corrected due mismatch between Directory and DirectoryInfo