再说cxGrid主从表相关
Posted usegear
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查了那么多叽叽歪歪的资料：masterView的key，从表key和detailkey以及从表需要排序。
回到原点看随机help：
说重要的：
Grid Mode: Master-Detail
ExpressQuantumGrid provides a special data loading mode called grid mode, which loads only a fraction of the dataset records at a time, thus improving performance for huge datasets. This document describes how to set up a master-detail relationship between datasets in grid mode.
Note: if you enable grid mode for a master/detail
relationship, both Views must be in grid mode, else data will not be displayed
correctly.
To represent a master-detail relationship
between storages in ExpressQuantumGrid, you need to create a hierarchical
structure of grid levels and Views similar to the one shown in the following
image:
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