SDI动态切换视图类型出错，请帮忙看下

SDI 程序切分成1行2列，程序运行过程中可以切换第二列视图
第二列视图在CSwithView（基类为CEditView） CRightView（基类为CScrollView）之间来回切换
代码如下：
BOOL CMainFrame::OnCreateClient(LPCREATESTRUCT lpcs, CCreateContext* pContext) 
{
// TODO: Add your specialized code here and/or call the base class
if (!m_SplitterWnd.CreateStatic(this,1,2) ||
        !m_SplitterWnd.CreateView(0,0,RUNTIME_CLASS(CLeftView),CSize(100,0),pContext) ||
        !m_SplitterWnd.CreateView(0,1,RUNTIME_CLASS(CSwitchView),CSize(0,0),pContext))
    {
        return FALSE;
    }    return TRUE;
//return CFrameWnd::OnCreateClient(lpcs, pContext);
}void CMainFrame::SwitchView(UINT ViewID)
{
    CView *pView = (CView*)m_SplitterWnd.GetPane(0,1);
    CCreateContext Context;
    Context.m_pCurrentDoc = GetActiveDocument();    switch (ViewID)
    {
        case 0:
            {
                if (!pView->IsKindOf(RUNTIME_CLASS(CSwitchView)))
                {
                    m_SplitterWnd.DeleteView(0,1);
                    Context.m_pNewViewClass = RUNTIME_CLASS(CSwitchView);
                    m_SplitterWnd.CreateView(0,1,RUNTIME_CLASS(CSwitchView),CSize(100,0),&Context);
                    m_SplitterWnd.RecalcLayout();
                }
                break;
            }
        case 1:
            {
                if (!pView->IsKindOf(RUNTIME_CLASS(CRightView)))
                {
                    m_SplitterWnd.DeleteView(0,1);
                    Context.m_pNewViewClass = RUNTIME_CLASS(CRightView);
                    m_SplitterWnd.CreateView(0,1,RUNTIME_CLASS(CRightView),CSize(100,0),&Context);
                    m_SplitterWnd.RecalcLayout();
                }
                break;
            }
        default:
            break;
            
    }
}
//以下是切换代码
void CMainFrame::OnSwitch() 
{
// TODO: Add your command handler code here
if (m_ViewType == 0)
    {
        SwitchView(1);
        m_ViewType = 1;
    }
    else
    {
        SwitchView(0);
        m_ViewType = 0;
    }
}切换的时候错误！我看了下，提示的是ViewSrcl.cpp中134行出错：
Warning: no message line prompt for ID 0x8003.
Error: must call SetScrollSizes() or SetScaleToFitSize() before painting scroll view.
但是我有这个函数啊，自动生成的代码如下：
void CRightView::OnInitialUpdate()
{
CScrollView::OnInitialUpdate(); CSize sizeTotal;
// TODO: calculate the total size of this view
sizeTotal.cx = sizeTotal.cy = 100;
SetScrollSizes(MM_TEXT, sizeTotal);}
另外：把CRightView的基类CScrolView换成CView CTreeView等都没问题请问下怎么回事，谢谢~~