code: function () {
  				var oBinding = this.byId("tree").getBinding("items");
  				if (this._sFilter) {
  					oBinding.filter(new Filter({
  						path: "name",
  						operator: FilterOperator.Contains,
  						value1: this._sFilter
  					}));
  					return true;
  				} else {
  					oBinding.filter();
  					return false;
  				}
  			}
docs: Build and apply filters to the tree model.
  @returns {boolean} if search filter is applied