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DevExpress v24.2 Update — Your Feedback Matters

Our What's New in v24.2 webpage includes product-specific surveys. Your response to our survey questions will help us measure product satisfaction for features released in this major update and help us refine our plans for our next major release.

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Data Controller: Data Group

A data group represents a set of records combined by a certain condition. Grouping grid data by items creates groups. The following image displays data in the grid control grouped by two columns. It demonstrates five data groups. Each data group is addressed by its index, which specifies the position of this group.

Data Groups

Since you can group data by multiple items, data groups can have other data groups as children. In the image above data group 2 has data groups 3 and 4 as children. All data groups have parents. Data group 1 belongs to data group 0. Data groups 0 and 2 are displayed at level 0. They also have a virtual parent data group whose index is -1.