My.Computer.FileSystem.FileExists Method

Returns a Boolean indicating whether the specified file exists.

' Usage
Dim value As Boolean = My.Computer.FileSystem.FileExists(file)
' Declaration
Public Function FileExists( _
   ByVal file As String _
) As Boolean

Parameters

• file
  String. Name and path of the file. Required.

Return Value

Returns True if the file exists; otherwise this method returns False.

Exceptions

The following condition may create an exception:

• The name of the file ends with a backslash (\) (ArgumentException).

Remarks

If the application does not have sufficient permissions to read the specified file, the FileExists method returns False, regardless of the existence of the path; the method does not throw an exception.

Tasks

The following table lists an example of a task involving the My.Computer.FileSystem.FileExists method.

Example

This example checks to see whether or not the file Check.txt exists and supplies the information in a message box.

If My.Computer.FileSystem.FileExists("c://Check.txt") Then
    MsgBox("File found.")
Else
    MsgBox("File not found.")
End If

Requirements

Namespace:Microsoft.VisualBasic.MyServices

Class:FileSystemProxy (provides access to FileSystem)

Assembly: Visual Basic Runtime Library (in Microsoft.VisualBasic.dll)

Availability by Project Type

Permissions

The following permission may be necessary:

For more information, see Code Access Security and Requesting Permissions.

See Also

Tasks

How to: Determine if a Directory Exists in Visual Basic

Walkthrough: Manipulating Files and Directories in Visual Basic

Reference

My.Computer.FileSystem Object

FileExists

Other Resources

Creating, Deleting, and Moving Files and Directories in Visual Basic