Private mButtons As New List(Of Button)
 
    Public Sub New()
        InitializeComponent()
 
        mButtons.Add(Button1)
        mButtons.Add(Button2)
    End Sub
 
    Private Sub CheckBox1_CheckedChanged(ByVal sender As System.Object, ByVal e _
      As System.EventArgs) Handles CheckBox1.CheckedChanged
        For Each btn As Button In mButtons
            btn.Enabled = CheckBox1.Checked
        Next
    End Sub