ChDir Function
Changes the current directory or folder.
The My feature provides you with greater productivity and performance in file I/O operations than the ChDir function. For more information, see My.Computer.FileSystem.CurrentDirectory Property
Public Sub ChDir(ByVal Path As String)
Parameters
- Path
Required. A String expression that identifies which directory or folder becomes the new default directory or folder. Path may include the drive. If no drive is specified, ChDir changes the default directory or folder on the current drive.
Exceptions
Exception type |
Error number |
Condition |
|---|---|---|
Path is empty. |
||
Invalid drive is specified, or drive is unavailable. |
See the "Error number" column if you are upgrading Visual Basic 6.0 applications that use unstructured error handling. (You can compare the error number against the Number Property (Err Object).) However, when possible, you should consider replacing such error control with Structured Exception Handling Overview for Visual Basic.
Remarks
The ChDir function changes the default directory, but not the default drive. For example, if the default drive is C, the following statement changes the default directory on drive D, but C remains the default drive:
ChDir("D:\TMP")
Making relative directory changes is accomplished by typing two periods, as follows:
ChDir("..") ' Moves up one directory.
.gif "Security note") Security Note: |
|---|
The ChDir function requires unmanaged code permission, which may affect its execution in partial-trust situations. For more information, see SecurityPermission Class and Code Access Permissions. |
Example
This example uses the ChDir function to change the current directory or folder.
' Change current directory or folder to "MYDIR".
ChDir("MYDIR")
' Assume "C:" is the current drive. The following statement changes
' the default directory on drive "D:". "C:" remains the current drive.
ChDir("D:\WINDOWS\SYSTEM")
Smart Device Developer Notes
This function is not supported.
Requirements
Namespace: Microsoft.VisualBasic
**Module:**FileSystem
Assembly: Visual Basic Runtime Library (in Microsoft.VisualBasic.dll)
See Also
Tasks
How to: Parse File Paths in Visual Basic
Reference
Other Resources
Creating, Deleting, and Moving Files and Directories in Visual Basic