Mastering Visual Basic .NET

change the last access time for a file is so that the specific file will be excluded from a routine that
deletes old files, or to include it in a list of backup files (with an automated procedure that backs up
only the files that have been changed since their last backup).
GetLastWriteTime, SetLastWriteTime
These two methods are equivalent to the GetCreationTime and SetCreationTime methods, but they
return and set the most recent date and time the file was written to.
GetLogicalDrives
This method returns an array of strings, which are the names of the logical drives on the computer.
The statements in Listing 13.6 print the names of all logical drives.
Listing 13.6: Retrieving the Names of All Drives on the Computer
Dim drives() As String
drives = Directory.GetLogicalDrives
Dim iDrive As Integer
For iDrive = 0 To drives.GetUpperBound(0)
Console.WriteLine(drives(iDrive))
Next
When executed, these statements will produce a list like the following:
A:\
C:\
D:\
E:\
GetParent
This method retrieves an object that represents the properties of a folder’s parent folder. The syntax
of the GetParent method is
parent = Directory.GetParent(path)
The return value is a DirectoryInfo object, and it must be declared with a statement like the
following:
Dim parent As DirectoryInfo
The name of the parent folder, for example, is parent.Name and its full name is parent.FullName.
Move
This method moves an entire folder to another location in the file system; its syntax is
Directory.Move(source, destination)
ACCESSING FOLDERS AND FILES
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