diff --git a/samples/propgrid/propgrid_minimal.cpp b/samples/propgrid/propgrid_minimal.cpp
index 28318f3a7c..774eee47c6 100644
--- a/samples/propgrid/propgrid_minimal.cpp
+++ b/samples/propgrid/propgrid_minimal.cpp
@@ -19,6 +19,7 @@ public:
  
     void OnAction(wxCommandEvent& event); 
     void OnPropertyGridChange(wxPropertyGridEvent& event); 
+    void OnPropertyGridChanging(wxPropertyGridEvent& event); 
 
 private:
     wxPropertyGrid* m_pg;
@@ -28,6 +29,7 @@ private:
 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
     EVT_MENU(wxID_HIGHEST+1, MyFrame::OnAction)
     EVT_PG_CHANGED( -1, MyFrame::OnPropertyGridChange )
+    EVT_PG_CHANGING( -1, MyFrame::OnPropertyGridChanging )
 END_EVENT_TABLE()
 
 MyFrame::MyFrame(wxWindow* parent)
@@ -56,11 +58,19 @@ void MyFrame::OnPropertyGridChange(wxPropertyGridEvent &event)
     wxPGProperty* p = event.GetProperty();
 
     if ( p )
-        wxLogDebug("OnPropertyGridChange(%s)", p->GetName().c_str());
+        wxLogDebug("OnPropertyGridChange(%s, value=%s)", 
+                   p->GetName().c_str(), p->GetValueAsString().c_str());
     else
         wxLogDebug("OnPropertyGridChange(NULL)");
 }
 
+void MyFrame::OnPropertyGridChanging(wxPropertyGridEvent &event)
+{
+    wxPGProperty* p = event.GetProperty();
+
+    wxLogDebug("OnPropertyGridChanging(%s)", p->GetName().c_str());
+}
+
 void MyFrame::OnAction(wxCommandEvent &) 
 {
 }