List Files in a Directory

A little code snippet that lists files in a directory.

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
    ' make a reference to a directory
    Dim di As New IO.DirectoryInfo("c:\")
    Dim diar1 As IO.FileInfo() = di.GetFiles()
    Dim dra As IO.FileInfo

   'list the names of all files in the specified directory
    For Each dra In diar1
        ListBox1.Items.Add(dra)
    Next
End Sub

To filter search change di.GetFiles() to di.GetFiles(“.extionsion”)