Use spacebar to activate items in generic wxDataViewCtrl too.

Pressing Spacebar now behaves the same as Enter in the generic control,
for consistency with the GTK+ control and native Windows list controls.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@68931 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/datavgen.cpp

@@ -3308,6 +3308,7 @@ void wxDataViewMainWindow::OnChar( wxKeyEvent &event )
     switch ( event.GetKeyCode() )
     {
         case WXK_RETURN:
+        case WXK_SPACE:
             {
                 wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED,
                                    parent->GetId());