Filter file names on their names or attributes

The GetFiles and GetDirectories methods of the System.IO.Directory class can take an argument containing wildcards, to filter the result:


' Display all the *.txt files in C:\DOCS.
Dim fname As String
For Each fname In Directory.GetFiles("c:\docs", "*.txt")
    Console.WriteLine(fname)
Next

You can use the GetCreationTime, GetLastAccessTime, GetLastWriteTime and GetAttributes shared methods to display information about a file or a directory, or to filter files according to their attributes:


For Each fname In Directory.GetFiles("c:\docs", "*.txt")
    ' Display only read-only files.
    ' (You need CBool if Option Strict is on.)
    If CBool(File.GetAttributes(fname) And FileAttributes.ReadOnly) Then
        Console.WriteLine(fname)
    End If
Next

Francesco Balena

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