Can anyone help me look at this problem for a long time and don't know why urgent!

pingfan135

There is such a derivation relationship CTreeView-> CMyTreeView
Now I added virtual void OnInitialUpdate (); function in the class CMyTreeView using the wizard
Then define it in the response function of a button as follows
void CMainFrame :: OnPre ()
{
// TODO: Add your command handler code here
// Change the query mode
CDicTreeView * pTreeView = (CDicTreeView *) m_wndSplitter.GetPane (0, 0); // returns the view pointer at row 0 and column 0
pTreeView-> OnInitialUpdate (); // Update the view
}
The debugger finds that when the execution reaches the last line, the program goes to execute the OnInitialUpdate (); function in CView. Why is this? I already have it in the CMyTreeView class.
Redefine OnInitialUpdate (); function.

zhoudaj

Is the first sentence of your CMyTreeView :: OnInitialUpdate () CTreeView :: OnInitialUpdate ()?

pingfan135

Yes The first sentence is CTreeView :: OnInitialUpdate ()

pingfan135

The tracking program can't execute CMyTreeView :: OnInitialUpdate () at all

pingfan135

I added #include <afxcview.h> to stdafx.h. I saw that someone else's program does not have this line. Does this have anything to do with this? It's no good to get rid of this line now. Error C2653: 'CTreeView': is not a class or namespace name

zhoudaj

Certainly it has nothing to do with that. CView is defined in those header files. How to remove those header files. Is your pointer the CMyTreeView object? Or CTreeView? If it is the former, I don't know why. I think it might be to execute CMyTreeView :: OnUpdate first to execute CTreeView :: OnUpdate. Anyway, there must be some problem, you can look carefully, logically it must be CMyTreeView :: ONUpdate

pingfan135

The above is wrong and has nothing to do with #include <afxcview.h>

Just wait for the master to help me solve it

pingfan135

Defined CDicTreeView * pTreeView can call other functions of CDicTreeView class, pTreeView pointer should point to CDicTreeView

yctoya

CDicTreeView * pTreeView = (CDicTreeView *) m_wndSplitter.GetPane (0, 0); // returns the view pointer at row 0 and column 0
pTreeView-> OnInitialUpdate (); // Update the view
=============

Don't understand where your CDicTreeView came from
Try:
CMyTreeView * pTreeView = (CMyTreeView *) m_wndSplitter.GetPane (0, 0); // returns the view pointer at row 0 and column 0
pTreeView-> OnInitialUpdate (); // Update the view