Public Class Form1
    Private tc As New MyTaskController
 
    Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) _
      Handles Button1.Click
        MyTaskControllerBindingSource.DataSource = tc
        MyTaskControllerBindingSource.DataMember = "Items"
 
        tc.AddTask(New MyTaskA)
        tc.Start(MyTaskStart.Collect)
    End Sub
 
    Private Sub Button2_Click(sender As System.Object, e As System.EventArgs) _
      Handles Button2.Click
        tc.Start(MyTaskStart.Edit)
    End Sub
 
End Class