NET practice and improve
........................\chap 10
........................\.......\CopyFileName
........................\.......\............\CopyFileName.aps
........................\.......\............\CopyFileName.clw
........................\.......\............\CopyFileName.cpp
........................\.......\............\CopyFileName.dsp
........................\.......\............\CopyFileName.dsw
........................\.......\............\CopyFileName.exe
........................\.......\............\CopyFileName.h
........................\.......\............\CopyFileName.ncb
........................\.......\............\CopyFileName.opt
........................\.......\............\CopyFileName.plg
........................\.......\............\CopyFileName.rc
........................\.......\............\CopyFileName.sln
........................\.......\............\CopyFileName.suo
........................\.......\............\CopyFileName.vcproj
........................\.......\............\CopyFileNameDlg.cpp
........................\.......\............\CopyFileNameDlg.h
........................\.......\............\Debug
........................\.......\............\.....\CopyFileName.exe
........................\.......\............\ReadMe.txt
........................\.......\............\res
........................\.......\............\...\CopyFileName.ico
........................\.......\............\...\CopyFileName.rc2
........................\.......\............\Resource.h
........................\.......\............\StdAfx.cpp
........................\.......\............\StdAfx.h
........................\.......\CopyFileName-2000
........................\.......\.................\CopyFileName.aps
........................\.......\.................\CopyFileName.clw
........................\.......\.................\CopyFileName.cpp
........................\.......\.................\CopyFileName.dsp
........................\.......\.................\CopyFileName.dsw
........................\.......\.................\CopyFileName.exe
........................\.......\.................\CopyFileName.h
........................\.......\.................\CopyFileName.ncb
........................\.......\.................\CopyFileName.opt
........................\.......\.................\CopyFileName.plg
........................\.......\.................\CopyFileName.rc
........................\.......\.................\CopyFileName.sln
........................\.......\.................\CopyFileName.suo
........................\.......\.................\CopyFileName.vcproj
........................\.......\.................\CopyFileNameDlg.cpp
........................\.......\.................\CopyFileNameDlg.h
........................\.......\.................\Debug
........................\.......\.................\.....\CopyFileName.exe
........................\.......\.................\ReadMe.txt
........................\.......\.................\res
........................\.......\.................\...\CopyFileName.ico
........................\.......\.................\...\CopyFileName.rc2
........................\.......\.................\Resource.h
........................\.......\.................\StdAfx.cpp
........................\.......\.................\StdAfx.h
........................\.......\DragDropListbox
........................\.......\...............\DDListBox.cpp
........................\.......\...............\DDListBox.h
........................\.......\...............\Debug
........................\.......\...............\.....\DragDropListbox.exe
........................\.......\...............\DragDropListbox.aps
........................\.......\...............\DragDropListbox.clw
........................\.......\...............\DragDropListbox.cpp
........................\.......\...............\DragDropListbox.dsp
........................\.......\...............\DragDropListbox.dsw
........................\.......\...............\DragDropListbox.h
...............