code: function(modelItem, rowDomNode){
  			var modelId = this._model.getId(modelItem);
  			this._dict[modelId] = {model: modelItem, rowDomNode: rowDomNode};
  		}
docs: Add a row to the dictionary.
  @param {Object} modelItem The model item object that represent a row.
  @param {domNode} rowDomNode optional The DOM node that represent a row. If