Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
TextBox3.Visible = Not TextBox3.Visible
TextBox1.Visible = Not TextBox1.Visible
End Sub
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
TextBox2.Visible = Not TextBox2.Visible
End Sub