这个是bug,把管理按钮隐藏掉,然后你单独做一个管理按钮吧。
如果要把管理按钮弄在控件里面,也可以,参考
Dim pv As WinForm.PictureViewer = e.Form.Controls("PictureViewer1")
pv.ManagerCommand.Visible = False
Dim lbl As New Windows.Forms.LinkLabel
lbl.Text = "管理"
lbl.ForeColor = Color.Blue
lbl.Font = New Font("宋体",9,FontStyle.Underline)
lbl.dock = 1
Dim obj As object = e.Form.Controls("PictureViewer1").basecontrol.Controls(0)
obj.panel2.controls("FlowLayoutPanel2").Controls.Add(lbl)
绑定事件参考 http://www.foxtable.com/help/topics/2374.htm