reset virtual root to NULL in DeleteAllItems()

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_4_BRANCH@18314 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2002-12-17 23:22:38 +00:00
parent 45fb821840
commit 21c9fbe5ee
1 changed files with 7 additions and 2 deletions
--- a/src/msw/treectrl.cpp
+++ b/src/msw/treectrl.cpp
@@ -1659,9 +1659,14 @@ void wxTreeCtrl::DeleteChildren(const wxTreeItemId& item)

 void wxTreeCtrl::DeleteAllItems()
 {
-    // delete stored root item.
-    delete GET_VIRTUAL_ROOT();
+    // delete the "virtual" root item.
+    if ( GET_VIRTUAL_ROOT() )
+    {
+        delete GET_VIRTUAL_ROOT();
+        m_pVirtualRoot = NULL;
+    }

+    // and all the real items
    if ( !TreeView_DeleteAllItems(GetHwnd()) )
    {
        wxLogLastError(wxT("TreeView_DeleteAllItems"));