DirectoryInfo.CreateSubdirectory Method

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Creates a subdirectory or subdirectories on the specified path.

Namespace: System.IO
Assembly: mscorlib (in mscorlib.dll)

Syntax

Public Function CreateSubdirectory ( _
    path As String _
) As DirectoryInfo

public DirectoryInfo CreateSubdirectory(
    string path
)

path
Type: System..::.String
The specified path. This cannot be a different disk volume or Universal Naming Convention (UNC) name.

Type: System.IO..::.DirectoryInfo
The last directory specified in path.

Exception	Condition
ArgumentException	path does not specify a valid file path or contains invalid DirectoryInfo characters.
ArgumentNullException	path is nullNothingnullptra null reference (Nothing in Visual Basic).
DirectoryNotFoundException	The specified path is invalid, such as being on an unmapped drive.
IOException	The subdirectory cannot be created. -or- A file or directory already has the name specified by path.
PathTooLongException	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 specified path, file name, or both are too long.
SecurityException	The caller does not have code access permission to create the directory. -or- The caller does not have code access permission to read the directory described by the returned DirectoryInfo object. This can occur when the path parameter describes an existing directory.
NotSupportedException	path contains a colon character (:) that is not part of a drive label ("C:\").

The specified path can be relative to this instance of the DirectoryInfo class.

Windows Phone

This member has a SecurityCriticalAttribute attribute. This attribute restricts this member to internal use. Application code that uses this member throws a MethodAccessException.