| 摘要 |
A method in an electronic device, comprising: displaying a set of data items and a first index list; detecting a first selection of a first index from the first index list; identifying a first subset of the set of data items, the first subset being associated with the first index; displaying, by the electronic device, a second index list that is associated with the first subset; detecting a second selection of a second index from the second index list; and identifying a second subset of the set of data items, the second subset being associated with both the first index and the second index. |
