if (this._canIdentify) { this._rowIdentities[this.store.getIdentity(item)] = {rowId: offset+idx, item: item}; }else{ var identity = dojo.toJson(this.query) + ":start:" + offset + ":idx:" + idx + ":sort:" + dojo.toJson(this.sortFields); this._rowIdentities[identity] = {rowId: offset+idx, item: item}; }