将事件添加到通过事件添加的动态添加的控件

Question

根据我的理解，将控件添加到页面的最佳时间是在OnInit事件中。但是如果你通过另一个控件事件添加一个控件，你就没有选择它会在加载事件之后添加事件。

例如：

Private Sub catalog_Init(sender As Object, e As System.EventArgs) Handles Me.Init
    p1.Controls.Add(New blah)
End Sub

Public Class blah
    Inherits Control

    Protected Overrides Sub OnInit(e As EventArgs)
        Debug.WriteLine("- control oninit")
        MyBase.OnInit(e)
        Dim b As Button = New Button
        b.Text = "link to me"
        AddHandler b.Click, AddressOf blah2
        Me.Controls.Add(b)

    End Sub
    Sub blah2(sender As Object, e As EventArgs)
        Debug.WriteLine("* button event fires")
        Dim b As Button = New Button
        b.Text = "another button!"
        AddHandler b.Click, AddressOf blah2
        Me.Controls.Add(b)

    End Sub
End Class

如何触发第二个按钮的事件？