expando brief bag 可伸开的手提小皮包
Choosing between categories and expando.
在categories和expando之间选择。
You need to clear the expando states when the tree grid performs a sorting query.
当树型网格执行一个排序查询时，您需要清除expando状态。
After investigating, you find that the tree grid would always hold the states of expando functions.
调查之后，您发现树型网格总是保留expando函数的状态。
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