Doubt in Splitter window

[User 3037427]

I have created a splitter window inside another splitter window. In the newly created splitter window pane, a tree control is placed. Upon selecting an item in the tree control, i want third splitter window to get created. But i am not able to get it done. Before selecting the item: first pane --------------------------- tree| ctrl| second pane pane| After selecting the tree item: first pane ----------------------------- tree | I-II pane ctrl |-------------------- pane | II-II pane Any body plz give me an idea.:sigh: Thanks in advance.:)

[raghuji rao]

u cannot create a third splitter window by selecting an treectrl item bcoz this splitter window will initialize in oncreateclient and it will call only once.

[Sameer_Thakur]

U cannot create a third splitter window by selecting an treectrl item bcoz this splitter window will initialize in oncreateclient and it will call only once. What u can do is create this third window in the oncreateclient only but set its width to 1( you cannot set the width to 0 in MFC) and when you select the tree control once again set the width of third window to desired size. To set the width you can use SetRowInfo() and SetColInfo()(please refer MSDN for more help about SetRowInfo() and SetColInfo()) Rakesh -- modified at 5:53 Saturday 3rd June, 2006

[User 3037427]

I getting an exception. This is what i did in my code: CMainFrame::OnCreateClient(..) { m_wndSplitter.CreateStatic( this,1,2); m_wndSplitter.CreateView(0,0,RUNTIME_CLASS(CMyTree),CSize(200,100),pContext); m_wndSplitter1.CreateStatic(&m_wndSplitter,1,2,WS_CHILD | WS_VISIBLE | WS_BORDER,m_wndSplitter.IdFromRowCol(0,1)); m_wndSplitter1.CreateView(0,0,RUNTIME_CLASS(CMyView1),CSize(200,100),pContext); m_wndSplitter1.CreateView(0,1,RUNTIME_CLASS(CMyView1),CSize(400,200),pContext); m_wndSplitter2.CreateStatic(&m_wndSplitter1,1,2,WS_CHILD | WS_VISIBLE | WS_BORDER,m_wndSplitter.IdFromRowCol(0,1)); m_wndSplitter2.SetRowInfo(0,1,1); m_wndSplitter2.SetColumnInfo(0,1,1); m_wndSplitter2.SetColumnInfo(1,1,1); pCon=*pContext; ..... } In tree control view: void CMyTree::OnSelchanged(NMHDR* pNMHDR, LRESULT* pResult) { NM_TREEVIEW* pNMTreeView = (NM_TREEVIEW*)pNMHDR; CMultiSplitWndApp* app=(CMultiSplitWndApp*)AfxGetApp(); HTREEITEM sel=pNMTreeView->itemNew.hItem; CString str= GetTreeCtrl().GetItemText(sel); CMainFrame* wnd=(CMainFrame*)app->m_pMainWnd; wnd->m_wndSplitter1.DeleteView(0,1); wnd->m_wndSplitter2.SetColumnInfo(0,400,100); wnd->m_wndSplitter2.SetColumnInfo(1,400,100); wnd->m_wndSplitter2.SetRowInfo(0,400,100); wnd->m_wndSplitter2.CreateView(0,1,RUNTIME_CLASSCMyTree),CSize (400,200),&wnd->pCon); wnd->m_wndSplitter2.CreateView(0,1,RUNTIME_CLASS(CMyTree),CSize(400,200),&wnd->pCon); *pResult = 0; } Correct me if there is any wrong. Thanks for ur reply.:)

[Sameer_Thakur]

Hi I think the reason why u r getting an exception is that void CMyTree::OnSelchanged(NMHDR* pNMHDR, LRESULT* pResult) { .......... ............. wnd->m_wndSplitter1.DeleteView(0,1); ....... ....... } you have splitted the m_wndSplitter1 view into 1 row 2 col. Now while deleting you are writing wnd->m_wndSplitter1.DeleteView(0,1); which delets view assigned to one window only and second window is still having the view with it. So when you try to assign the view to this window you get an exception. Insted you try wnd->m_wndSplitter2.DeleteView(0,0); wnd->m_wndSplitter2.DeleteView(0,1); and then try to reassign the views. Rakesh

[User 3037427]

Thanks for ur reply. But still i am gettinmg an exception. :((

[Sameer_Thakur]

Sorry then,thats all from my side... Will update you if I find any help on this issue... Rakesh

[User 3037427]

Thankyou.:)

[Sameer_Thakur]

Hello, I found some interesting facts about CSplitterWnd::CreateView(). The document says that you cannot call the 'CreateView()' from outside the OnCreateClient(). But you can call it indirectly from OnCreateClient() i.e. you can call another function from OnCreateClient() which calls CreateView(). ________________________________________________________ For example.... OnCreateClient(..) { CreateAllViews(..) } CreateAllViews(..) { CreateView(...); CreateView(...); } ______________________________________________ In your code you are calling CreatView() in void CMyTree::OnSelchanged(NMHDR* pNMHDR, LRESULT* pResult). I think this might be the reason why you get an exception..... Rakesh