DirectoryInfo.Delete Method (Boolean)
Deletes this instance of a DirectoryInfo, specifying whether to delete subdirectories and files.
Assembly: mscorlib (in mscorlib.dll)
The directory is read-only.
The directory contains one or more files or subdirectories and recursive is false.
The directory is the application's current working directory.
There is an open handle on the directory or on one of its files, and the operating system is Windows XP or earlier. This open handle can result from enumerating directories and files.
The caller does not have the required permission.