如何判断一个TreeCtrl控件下某个节点有几个子节点，有没有子节点？

Question

我用pNMTreeView->itemNew.cChildren来找该节点的子节点数目好像不对，每次得到的都是5

Answer 1

// The pointer to my tree control.
extern CTreeCtrl* pmyTreeCtrl;
// The item whose children will be deleted.
extern HTREEITEM hmyItem;// Delete all of the children of hmyItem.
if (pmyTreeCtrl->ItemHasChildren(hmyItem))
{
   HTREEITEM hNextItem;
   HTREEITEM hChildItem = pmyTreeCtrl->GetChildItem(hmyItem);   while (hChildItem != NULL)
   {
      hNextItem = pmyTreeCtrl->GetNextItem(hChildItem, TVGN_NEXT);
      pmyTreeCtrl->DeleteItem(hChildItem);
      hChildItem = hNextItem;
   }
}

Answer 2

int nCount(0);
hItem = GetChildItem(hItem));while (hItem = GetNextSiblingItem(hItem))
{
  nCount++;
}
return nCount;