DirectoryInfoCopyTo Method (String, CopyOptions, CopyMoveProgressRoutine, Object)
and the possibility of notifying the application of its progress through a callback function.
Option NoBuffering is recommended for very large file transfers.
Use this method to allow or prevent overwriting of an existing directory.
Whenever possible, avoid using short file names (such as XXXXXX~1.XXX) with this method.
If two directories have equivalent short file names then this method may fail and raise an exception and/or result in undesirable behavior.
public CopyMoveResult CopyTo( string destinationPath, CopyOptions copyOptions, CopyMoveProgressRoutine progressHandler, Object userProgressData )