GroupBox有AddControl方法的。
SplitContainer有Panel1属性,表示第一个分区面板,Panel1同样有AddControl方法,第二个分区面板用Panel2表示。
Dim sp As WinForm.SplitContainer = e.Form.Controls("SplitContainer1")
Dim lbl As WinForm.Label
lbl = e.Form.CreateControl("lable1", ControlTypeEnum.Label)
lbl.Text = "Foxtable"
lbl.Left = 100
lbl.Top = 100
sp.Panel1.AddControl(lbl)