-\helpref{wxDataViewIndexListModel}{wxdataviewindexlistmodel}.
-It is planned to add helper classes for simple tree
-and list stores in the future.
+\helpref{wxDataViewIndexListModel}{wxdataviewindexlistmodel},
+\helpref{wxDataViewTreeStore}{wxdataviewtreestore}.
+
+Note that wxDataViewModel is reference counted, derives from
+\helpref{wxObjectRefData}{wxobjectrefdata} and cannot be deleted
+directly as it can be shared by several wxDataViewCtrls. This
+implies that you need to decrease the reference count after
+associating the model with a control like this:
+
+{\small%
+\begin{verbatim}
+ wxDataViewCtrl *musicCtrl = new wxDataViewCtrl( this, ID_MUSIC_CTRL );
+ wxDataViewModel *musicModel = new MyMusicModel;
+ m_musicCtrl->AssociateModel( musicModel );
+ musicModel->DecRef(); // avoid memory leak !!
+ // add columns now
+\end{verbatim}
+}%