怎样保存CTreeCtrl的数据。大家快来救命啊。

[lxas]

小弟自己从CTreeCtrl派生了一个DriverTree控件。现在想保存DriverTree实例中的数据。我自己重载DirverTree的Serialize虚函数。但是接下来由于在文档类中没有为DriverTree创建实例，是在一个叫做CWorkspaceBar（派生自CBCGSizingControlBar，CBCGSizingControlBar是BCG库里面的类。）的类中创建的实例。所以菜得不知道该怎么做了。惭愧！惭愧！还望各位大虾指教啊。。问题解决后一定给分。不够还可以加:)

[dongfa]

我的网站上有这方面的源程序:
请到下面下载
http://go6.163.com/dongfa/software/treestore.zip

[蒋晟]

#define PARENT 0
#define CHILD 1
#define OVER -1

int m_iDirection;
INT m_iNest;
CTreeCtrl* m_ptree;

void CEDoc::Serialize(CArchive& ar)
{
POSITION position=GetFirstViewPosition ();
CEView* view=(CEView* )this->GetNextView (position);
CEFrame* pFrame=(CEFrame*)view->GetParentFrame();
CString strItemText;
HTREEITEM hCurrent=NULL;
HTREEITEM hTest=NULL;
m_ptree=&(pFrame->m_wndWorkspacebar.m_wndTreeCtrl);
if (ar.IsStoring())
{
// TODO: add storing code here
//ar<<m_ptree->GetCount();
m_iNest=0;
if(m_ptree->GetCount()<1)
return;
hCurrent=m_ptree->GetRootItem( );
m_iDirection=CHILD;
while(m_iDirection!=OVER)
{
switch(m_iDirection)
{
case CHILD:
char szBuffer[256];
TV_ITEM item;
item.hItem = hCurrent;
item.mask = TVIF_TEXT | TVIF_CHILDREN;
item.pszText = szBuffer;
item.cchTextMax = 255;
m_ptree->GetItem(&item);
//save information
ar<<m_iNest;
strItemText=szBuffer;
ar<<strItemText;
m_iDirection=CHILD;//get child item if possible
//getchild item
if( m_ptree->ItemHasChildren(hCurrent))
{
m_iNest=1;//next item is the child of this item
hCurrent= m_ptree->GetChildItem(hCurrent);
m_iDirection=CHILD;
break;
}
else//no child item
{
//set base item nest if item has no child
m_iNest=0;
// Try next sibling item.
hTest = m_ptree->GetNextSiblingItem(hCurrent);
if(hTest!=NULL)
{
hCurrent=hTest;
m_iDirection=CHILD;
break;
}
else
{
//No slibing, goto parent
hTest= m_ptree->GetParentItem(hCurrent);
if(hTest==NULL)//no parent,no sibling,i.e. end of tree
m_iDirection=OVER;
else
{
hCurrent=hTest;
m_iNest=-1;
m_iDirection=PARENT;
}
break;
}
}
case PARENT:
// Try next sibling item.
hTest = m_ptree->GetNextSiblingItem(hCurrent);
if(hTest!=NULL)
{
hCurrent=hTest;
m_iDirection=CHILD;
break;
}
else
{
//No slibing, goto parent
hTest= m_ptree->GetParentItem(hCurrent);

if(hTest==NULL)//no parent,no sibling,i.e.end of tree
{
m_iDirection=OVER;
break;
}
hCurrent=hTest;
m_iNest--;
m_iDirection=PARENT;
break;
}
}
}
ar<<32767;//end of file

}
else
{
// TODO: add loading code here
m_ptree->DeleteAllItems();
ar>>m_iNest;
if(m_iNest!=0)
{
MessageBox(NULL,"·Ç·¨ÎļþÍ·!","´íÎó",MB_OK);
return;
}
ar>>strItemText;
hCurrent=m_ptree->InsertItem(strItemText);
while(hCurrent!=NULL)
{
ar>>m_iNest;
if(m_iNest==32767)//end of file
return;
ar>>strItemText;
if(m_iNest==1)
{
hCurrent=m_ptree->InsertItem(strItemText,hCurrent);
m_ptree->EnsureVisible(hCurrent);
continue;
}
while(m_iNest<0)
{
hCurrent=m_ptree->GetParentItem(hCurrent);
m_iNest++;
}
//get parent;if root,set root.
hTest=m_ptree->GetParentItem(hCurrent);
if(hTest==NULL)
hTest=TVI_ROOT;
m_ptree->InsertItem(strItemText,hTest);

}
}
}

[lxas]

hoho，还是我们的 jiangsheng(蒋晟.Net)厉害。pfpf

[i386]

jiangsheng的方法太麻烦，Not good