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Returns the parent path of the provided path.
' Usage
Dim value As String = My.Computer.FileSystem.GetParentPath(path)
' Declaration
Public Function GetParentPath( _
ByVal path As String _
) As String
Parameters
- path
String. Path to be examined. Required.
Return Value
String.
Exceptions
The following conditions may cause an exception to be thrown:
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).
Path does not have a parent path because it is a root path (ArgumentException).
The path is not valid because it is Nothing (ArgumentNullException).
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).
Remarks
This is a string operation; the file system is not examined.
Example
This example gets the parent path for C:\Backups\Tmp\Test.
Dim strPath As String
strPath = My.Computer.FileSystem.GetParentPath("C:\backups\tmp\test")
MsgBox(strPath)
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.
See Also
Tasks
How to: Parse File Paths in Visual Basic