private void BindModelEvents()
{
_model.NodesChanged += new EventHandler<TreeModelEventArgs>(_model_NodesChanged);
_model.NodesInserted += new EventHandler<TreeModelEventArgs>(_model_NodesInserted);
_model.NodesRemoved += new EventHandler<TreeModelEventArgs>(_model_NodesRemoved);
_model.StructureChanged += new EventHandler<TreePathEventArgs>(_model_StructureChanged);
}