Moves a file or a directory and its contents to a new location.
Assembly: mscorlib (in mscorlib.dll)
An attempt was made to move a directory to a different volume.
destDirName already exists.
The sourceDirName and destDirName parameters refer to the same file or directory.
The directory or a file within it is being used by another process.
The caller does not have the required permission.
sourceDirName or destDirName is a zero-length string, contains only white space, or contains one or more invalid characters. You can query for invalid characters with the GetInvalidPathChars method.
sourceDirName or destDirName is a null reference (Nothing in Visual Basic).
The specified path, file name, or both exceed the system-defined maximum length. For example, on Windows-based platforms, paths must be less than 248 characters and file names must be less than 260 characters.
The path specified by sourceDirName is invalid (for example, it is on an unmapped drive).
This method creates a new directory with the name specified by destDirName and moves the contents of sourceDirName to the newly created destination directory. If you try to move a directory to a directory that already exists, an IOException will occur. For example, an exception will occur if you try to move c:\mydir to c:\public, and c:\public already exists. Alternatively, you could specify "c:\\public\\mydir" as the destDirName parameter, provided that "mydir" does not exist under "c:\\public", or specify a new directory name such as "c:\\newdir".
The sourceDirName and destDirName arguments are permitted to specify relative or absolute path information. Relative path information is interpreted as relative to the current working directory. To obtain the current working directory, see GetCurrentDirectory.
Trailing spaces are removed from the end of the path parameters before moving the directory.
For a list of common I/O tasks, see Common I/O Tasks.