Public Class Form1
 
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As _
      System.EventArgs) Handles MyBase.Load
        'textboxen erzeugen
        For i As Integer = 0 To 10
            Dim tb As New TextBox
            tb.Text = "Textbox Nr." & i.ToString
            Me.Controls.Add(tb)
        Next
        'inhalt der textboxen speichern
        Using sw As System.IO.StreamWriter = New System.IO.StreamWriter( _
          "c:\MyFile.txt", False)
            For Each stb As TextBox In Me.Controls
                sw.WriteLine(stb.Text)
            Next
            sw.Close()
        End Using
    End Sub
End Class