关于左边是树视图，点击树视图条目，右边动态生成一个列表视图，对右边视图切换之后视图内容不见了
做了个项目，左边是动态的树形视图，点击一个条目，右边就调用OpenDocumentFile自动生成一个列表视图（在里面有内容），我前面对树形视图和文档进行了绑定，现在的问题是点击左边的条目，右边可以生成动态生成列表视图，但是当我切换右边的视图的时候，右边视图内容消失了，但是移动分割条的时候，视图里面的内容又能看到，并且视图并没有随着分割条的移动而移动 现在列出部分代码，求高人指教啊
我再左边的树形视图响应双击事件void CLeftView::OnDblclkTree(NMHDR* pNMHDR, LRESULT* pResult)
{
HTREEITEM m_hTreeItem = m_treeEx.GetSelectedItem();
CString S1 = m_treeEx.GetItemText(m_hTreeItem);
AfxGetMainWnd()-> SendMessage(WM_USER_VIEW);
}
然后再CMainFrame响应这个消息
void CMainFrame::ShowDockingPanePopupMenu(CXTPDockingPane* pPopupPane, CPoint pt, LPRECT lprcExclude)
{
CMenu menu;
VERIFY(menu.LoadMenu(IDR_POPUP_PANES));
CMenu* pPopup = menu.GetSubMenu(0);
if (pPopupPane->IsHidden())
{
pPopup->CheckMenuItem(ID_POPUP_AUTOHIDE, MF_BYCOMMAND|MF_CHECKED);
pPopup->EnableMenuItem(ID_POPUP_FLOATING, MF_BYCOMMAND|MF_DISABLED);
pPopup->EnableMenuItem(ID_POPUP_DOCKABLE, MF_BYCOMMAND|MF_DISABLED);
}
else if (pPopupPane->GetOptions() & xtpPaneNoDockable)
{
pPopup->CheckMenuItem(ID_POPUP_FLOATING, MF_BYCOMMAND|MF_CHECKED);
}
else
{
pPopup->CheckMenuItem(ID_POPUP_DOCKABLE, MF_BYCOMMAND|MF_CHECKED);
}
TPMPARAMS tpm;
tpm.cbSize = sizeof(TPMPARAMS);
tpm.rcExclude = lprcExclude ? *lprcExclude : CRect(0, 0, 0, 0);
int nCommand = GetCommandBars()->TrackPopupMenuEx(pPopup, TPM_RIGHTBUTTON|TPM_NONOTIFY|TPM_RETURNCMD, pt.x, pt.y, NULL, &tpm);
switch (nCommand)
{
case ID_POPUP_HIDE:
pPopupPane->Close();
break;
case ID_POPUP_AUTOHIDE:
m_paneManager.ToggleAutoHide(pPopupPane);
break;
case ID_POPUP_DOCKABLE:
if (pPopupPane->GetOptions() & xtpPaneNoDockable)
{
pPopupPane->SetOptions(pPopupPane->GetOptions() & ~xtpPaneNoDockable);
}
break;
case ID_POPUP_FLOATING:
if ((pPopupPane->GetOptions() & xtpPaneNoDockable) == 0)
{
if (!pPopupPane->IsFloating())
m_paneManager.ToggleDocking(pPopupPane);
pPopupPane->SetOptions(pPopupPane->GetOptions() | xtpPaneNoDockable);
}
break;
}
}
LRESULT CMainFrame::OnUpgradeView(WPARAM wparam, LPARAM lparam)
{
CMainApp *pApp = (CMainApp*)AfxGetApp();
m_pListDoc = (CMainDoc*)(pApp->pListDocTemplate->OpenDocumentFile(NULL));
CListCtrl*m_pListCtrl;
m_pListCtrl = new CListCtrl;
CRect rcChild;
//CFrameWnd* pFrameWnd = STATIC_DOWNCAST(CFrameWnd, AfxGetMainWnd());
CWnd* pFrameWnd = GetWindow(GW_CHILD); //获取窗体子控件指针
pFrameWnd-> GetWindowRect(rcChild);
ScreenToClient(rcChild);
pFrameWnd-> MoveWindow(rcChild,FALSE);
rcChild.left += 50;
rcChild.right +=100;
rcChild.bottom += 50;
rcChild.top += 100;
m_pListCtrl->CreateEx(WS_CHILD,
WS_VISIBLE |WS_BORDER |WS_CAPTION| LVS_REPORT|LVS_EX_FULLROWSELECT|LVS_EX_GRIDLINES|LVS_EX_ONECLICKACTIVATE
,rcChild,this,0);
//m_pListCtrl.SubclassDlgItem(IDC_LIST_VIEW, AfxGetMainWnd());
//向列表视图中添加数据
m_pListCtrl->InsertColumn(0, _T("姓名"), LVCFMT_LEFT , 80);
m_pListCtrl->InsertColumn(1, _T("语文"), LVCFMT_LEFT, 60);
m_pListCtrl->InsertColumn(2, _T("数学"), LVCFMT_LEFT, 60);
m_pListCtrl->InsertColumn(3, _T("英语"), LVCFMT_LEFT, 60);
m_pListCtrl->InsertColumn(4, _T("政治"), LVCFMT_LEFT, 60);
m_pListCtrl->InsertColumn(5, _T("历史"), LVCFMT_LEFT, 60);
//向列表视图中添加数据
m_pListCtrl->InsertItem(0, _T("王男"));
m_pListCtrl->InsertItem(1, _T("王1"));
m_pListCtrl->InsertItem(2, _T("王2"));
m_pListCtrl->InsertItem(3, _T("王3"));
m_pListCtrl->InsertItem(4, _T("王4"));
return TRUE;
}
[解决办法]
OpenDocumentFile如果函数调用成功，返回CDocument对象的指针这里是文档对象，不是窗口类，不是视图，不知道你是怎么理解的。
实现视图切换的方法：
1. 向父框架类发送切换视图消息（自定义消息）；
2. 在父框架类中添加相应函数；响应函数的作用就是向主窗口（CMainFrame）发送WM_COMMAND 消息
在左侧树视图中添加发送消息
AfxGetApp()->m_pMainWnd->SendMessage(WM_COMMAND, ID_FIRST_VIEW);
AfxGetApp()->m_pMainWnd->SendMessage(WM_COMMAND, ID_SECOND_VIEW);
3. 在相应函数内使用DeleteView 删除原来的视，使用CreateView 关联新的
视，再调用RecalcLayout 重绘视图区。
消息响应函数：
void CMainFrame::OnSwitchToFirst()
{
m_SplitterWnd.DeleteView(0,1);
m_SplitterWnd.CreateView(0,1,RUNTIME_CLASS(CFirstView), CSize(0,0),NULL);
m_SplitterWnd.RecalcLayout();
}
void CMainFrame::OnSwitchToSecond()
{
m_SplitterWnd.DeleteView(0,1);
m_SplitterWnd.CreateView(0,1,RUNTIME_CLASS(CSecondView), CSize(0,0),NULL);
m_SplitterWnd.RecalcLayout();
}
