diff --git a/samples/newgrid/griddemo.cpp b/samples/newgrid/griddemo.cpp
index 6384a4ab41..660bca93b4 100644
--- a/samples/newgrid/griddemo.cpp
+++ b/samples/newgrid/griddemo.cpp
@@ -71,6 +71,7 @@ BEGIN_EVENT_TABLE( GridFrame, wxFrame )
     EVT_MENU( ID_TOGGLEROWSIZING, GridFrame::ToggleRowSizing )
     EVT_MENU( ID_TOGGLECOLSIZING, GridFrame::ToggleColSizing )
     EVT_MENU( ID_TOGGLEGRIDSIZING, GridFrame::ToggleGridSizing )
+    EVT_MENU( ID_TOGGLEGRIDLINES, GridFrame::ToggleGridLines )
     EVT_MENU( ID_SETLABELCOLOUR, GridFrame::SetLabelColour )
     EVT_MENU( ID_SETLABELTEXTCOLOUR, GridFrame::SetLabelTextColour )
     EVT_MENU( ID_ROWLABELHORIZALIGN, GridFrame::SetRowLabelHorizAlignment )
@@ -129,6 +130,8 @@ GridFrame::GridFrame()
     viewMenu->Append( ID_TOGGLEROWSIZING, "Ro&w drag-resize", "", TRUE );
     viewMenu->Append( ID_TOGGLECOLSIZING, "C&ol drag-resize", "", TRUE );
     viewMenu->Append( ID_TOGGLEGRIDSIZING, "&Grid drag-resize", "", TRUE );
+    viewMenu->Append( ID_TOGGLEGRIDLINES, "&Grid Lines", "", TRUE );
+
 
     wxMenu *rowLabelMenu = new wxMenu;
 
@@ -288,6 +291,7 @@ void GridFrame::SetDefaults()
     GetMenuBar()->Check( ID_TOGGLEROWSIZING, TRUE );
     GetMenuBar()->Check( ID_TOGGLECOLSIZING, TRUE );
     GetMenuBar()->Check( ID_TOGGLEGRIDSIZING, TRUE );
+    GetMenuBar()->Check( ID_TOGGLEGRIDLINES, TRUE );
 }
 
 
@@ -344,6 +348,13 @@ void GridFrame::ToggleGridSizing( wxCommandEvent& WXUNUSED(ev) )
 }
 
 
+void GridFrame::ToggleGridLines( wxCommandEvent& WXUNUSED(ev) )
+{
+    grid->EnableGridLines(
+        GetMenuBar()->IsChecked( ID_TOGGLEGRIDLINES ) );
+}
+
+
 void GridFrame::SetLabelColour( wxCommandEvent& WXUNUSED(ev) )
 {
     wxColourDialog dlg( NULL );
diff --git a/samples/newgrid/griddemo.h b/samples/newgrid/griddemo.h
index 5140bfbbb4..ca9a53294c 100644
--- a/samples/newgrid/griddemo.h
+++ b/samples/newgrid/griddemo.h
@@ -40,6 +40,7 @@ class GridFrame : public wxFrame
     void ToggleRowSizing( wxCommandEvent& );
     void ToggleColSizing( wxCommandEvent& );
     void ToggleGridSizing( wxCommandEvent& );
+    void ToggleGridLines( wxCommandEvent& );
     void SetLabelColour( wxCommandEvent& );
     void SetLabelTextColour( wxCommandEvent& );
     void SetRowLabelHorizAlignment( wxCommandEvent& );
@@ -88,6 +89,7 @@ public:
         ID_TOGGLEROWSIZING,
         ID_TOGGLECOLSIZING,
         ID_TOGGLEGRIDSIZING,
+        ID_TOGGLEGRIDLINES,
         ID_SETLABELCOLOUR,
         ID_SETLABELTEXTCOLOUR,
         ID_ROWLABELALIGN,