Moves a System.IO.DirectoryInfo instance and its contents to a new path.
This method throws an System.IO.IOException if, for example, you try to move c:\mydir to c:\public, and c:\public already exists. You must specify "c:\\public\\mydir" as the destDirName parameter, or specify a new directory name such as "c:\\newdir".
This method permits moving a directory to a read-only directory. The read/write attribute of neither directory is affected.
For a list of common I/O tasks, see Common I/O Tasks.