Fix of memory leak with generic file dialog (Patch #1017938)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@28974 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/filedlgg.cpp

@@ -823,6 +823,10 @@ void wxFileCtrl::SortItems(wxFileData::fileListFieldType field, bool foward)
 
 wxFileCtrl::~wxFileCtrl()
 {
+    // Normally the data are freed via an EVT_LIST_DELETE_ALL_ITEMS event and
+    // wxFileCtrl::OnListDeleteAllItems. But if the event is generated after
+    // the destruction of the wxFileCtrl we need to free any data here:
+    FreeAllItemsData();
 }
 
 //-----------------------------------------------------------------------------