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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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Creating Summaries

ExpressQuantumGrid supports three summary types. It can evaluate: footer summaries, group summaries and summary groups. Footer summaries are calculated over all the records in a grid View. Group summaries are calculated over groups of records when data in a View is grouped by grid items (columns in tabular Views and data groups in Chart Views). A summary group is a set of group summaries that are calculated when grouping by particular columns.

Summaries in a grid View are calculated by a data controller. The DataController.Summary property of the TcxDataSummary class gives you the ability to

TcxDataSummaryItem is the base element of all types of summary. It references the column by which to calculate the summary, a function (Sum, Minimum, Maximum, Count, Average), the format of the output string and the position at which to display the result.

For further information about creating specific summaries, refer to the following topics:

Creating Footer and Group Summaries

Creating Summary Groups