DirectoryInfo.CreateSubdirectory Method

May 11, 2014

Creates a subdirectory or subdirectories on the specified path.

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

public DirectoryInfo CreateSubdirectory(
	string path
)

Parameters

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

Return Value

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

ExceptionCondition
ArgumentException

path does not specify a valid file path or contains invalid DirectoryInfo characters.

ArgumentNullException

path is null.

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.

Version Notes

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.

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

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