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How to: Determine the Absolute Path of a File in Visual Basic

Visual Studio 2010

The GetFileInfo method returns a FileInfo object that can be used to determine information about a file, including its location, which is contained in the FullName property.

If a file does not exist, GetFileInfo does not throw an exception, but one is thrown the first time a property on the System.IO.FileInfo object is accessed.

Procedure

To determine the absolute path of a file

Use the GetFileInfo method to return a FileInfo object for the file you wish to examine. The FullName property contains the absolute path. The following example determines the absolute path of Test.txt and displays it in a message box.
VB
Copy
Dim getInfo As System.IO.FileInfo getInfo = My.Computer.FileSystem.GetFileInfo("C:\TestFolder1\test.txt") MsgBox(getInfo.FullName)

Robust Programming

The following conditions may cause an exception:

The path name is malformed. For example, it contains invalid characters or is only white space (ArgumentException).
The file does not exist or is Nothing (ArgumentNullException).
The path contains a colon in the middle of the string (NotSupportedException).
The path is too long (PathTooLongException).
The user lacks necessary permissions (SecurityException).
The user lacks ACL (access control list) access to the file (UnauthorizedAccessException).

Tasks

How to: Parse File Paths in Visual Basic

Reference

GetFileInfo

FileInfo

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