[C/CPP] MFC 트리컨트롤, Expand / Collapse

MFC Tree Control: How to expand/collapse a branch?
Q: How to expand/collapse a branch?
A: If you want to expand or collapse one only item use
Code:

m_tree.Expand(hItem, TVE_EXPAND); // or 'TVE_COLLAPSE'

If you want to expand or collapse an item and all of its children use something like this:
Code:

void ExpandTreeItem(const CTreeCtrl &tree, HTREEITEM hItem, UINT nCode)
{
    HTREEITEM hChild;

    if(tree.ItemHasChildren(hItem))
    {
        tree.Expand(hItem, nCode);
        hChild = tree.GetChildItem(hItem);

        while(hChild)
        {
            ExpandTreeItem(tree, hChild, nCode);
            hChild = tree.GetNextItem(hChild, TVGN_NEXT);
        }
    }
}

Last edited by Andreas Masur; July 25th, 2005 at 04:57 PM.
출처 – http://forums.codeguru.com/showthread.php?231228-MFC-Tree-Control-How-to-expand-collapse-a-branch