主题：SplitContainer我设置窗口改变大小自动设置比例，可是有问题

我在主窗口的sizechanged 这样写
Dim sc1 As WinForm.SplitContainer = e.Form.Controls("sc1")
'sc1.IsSplitterFixed = False
Dim sc1_p1 As WinForm.SplitPanel = sc1.Panel1
Dim sc1_p2 As WinForm.SplitPanel = sc1.Panel2
sc1_p1.ExtendSize = New Size(sc1.Width,sc1.Height/2)
sc1_p2.ExtendSize = New Size(sc1.Width,sc1.Height/2)
窗口变了后这样了