My.Computer.FileSystem.GetDirectories Method
Returns a collection of strings representing the path names of subdirectories within a directory.
' Usage
Dim value As System.Collections.ObjectModel.ReadOnlyCollection(Of String) = My.Computer.FileSystem.GetDirectories(directory)
Dim value As System.Collections.ObjectModel.ReadOnlyCollection(Of String) = My.Computer.FileSystem.GetDirectories(directory ,searchType ,wildcards)
' Declaration
Public Function GetDirectories( _
ByVal directory As String _
) As System.Collections.ObjectModel.ReadOnlyCollection(Of String)
' -or-
Public Function GetDirectories( _
ByVal directory As String, _
ByVal searchType As SearchOption, _
ByVal wildcards As String() _
) As System.Collections.ObjectModel.ReadOnlyCollection(Of String)
Parameters
directory
String. Name and path of directory. Required.searchType
SearchOption Enumeration. Whether to include subfolders. Default is SearchOption.SearchTopLevelOnly. Required.wildcards
String. Pattern to match names. Required.
Return Value
Read-only collection of String.
Exceptions
The following conditions may produce an exception:
The path is not valid for one of the following reasons: it is a zero-length string; it contains only white space; it contains invalid characters; or it is a device path (starts with \\.\) (ArgumentException).
The path is not valid because it is Nothing (ArgumentNullException).
One or more of the specified wildcard characters is Nothing, an empty string, or contains only spaces (ArgumentNullException).
directory does not exist (DirectoryNotFoundException).
directory points to an existing file (IOException).
The path exceeds the system-defined maximum length (PathTooLongException).
A file or directory name in the path contains a colon (:) or is in an invalid format (NotSupportedException).
The user lacks necessary permissions to view the path (SecurityException).
The user lacks necessary permissions (UnauthorizedAccessException).
Remarks
You can use the wildcards parameter to specify a specific pattern. If you would like to include the contents of subdirectories in the search, set the searchType parameter to SearchAllSubDirectories.
An empty collection is returned if no directories matching the specified pattern are found.
Tasks
The following table lists examples of tasks involving the My.Computer.FileSystem.GetDirectories method.
To |
See |
|---|---|
List subdirectories with a specific pattern |
How to: Find Subdirectories with a Specific Pattern in Visual Basic |
Example
The following example returns all the directories in the directory structure that contain the word Logs in their names and adds them to ListBox1.
For Each foundDirectory As String In _
My.Computer.FileSystem.GetDirectories _
(My.Computer.FileSystem.SpecialDirectories.MyDocuments, _
True, "*Logs*")
ListBox1.Items.Add(foundDirectory)
Next
This example requires that you have a ListBox named ListBox1 on your form.
Requirements
Namespace:Microsoft.VisualBasic.MyServices
Class:FileSystemProxy (provides access to FileSystem)
Assembly: Visual Basic Runtime Library (in Microsoft.VisualBasic.dll)
Availability by Project Type
Project type |
Available |
|---|---|
Windows Application |
Yes |
Class Library |
Yes |
Console Application |
Yes |
Windows Control Library |
Yes |
Web Control Library |
Yes |
Windows Service |
Yes |
Web Site |
Yes |
Permissions
The following permission may be necessary:
Permission |
Description |
|---|---|
Controls the ability to access files and folders. Associated enumeration: Unrestricted. |
For more information, see Code Access Security and Requesting Permissions.