skip the header click event to allow sorting (done in the default handler) to take place

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@57207 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/dataview/dataview.cpp

@@ -1115,6 +1115,10 @@ void MyFrame::OnContextMenu( wxDataViewEvent &event )
 
 void MyFrame::OnHeaderClick( wxDataViewEvent &event )
 {
+    // we need to skip the event to let the default behaviour of sorting by
+    // this column when it is clicked to take place
+    event.Skip();
+
     if(!m_log)
         return;