接下来，确定当前所需显示的页面，并使用这个信息确定偏移量，即需要跳过的记录条数。
Next, determine what page you currently need to display and use that information to determine the offset, or number of records to skip.
如果数据集中的某个记录发生更改，则可以使用该记录的多个副本，包括原始值(即从数据源读取的值)和当前值(即更改后的值)。
If a record has changed in the dataset, multiple copies of the record are available, including the original value (as read from the data source) and current value (after changes).
应用推荐