This documentation topic describes legacy technology. We no longer develop new functionality for the GridControl and suggest that you use the new DataGridView control instead.
A total summary is an aggregate function value calculated over all rows in the specified column. Total summaries are displayed at the bottom of the grid within the total summary panel, whose visibility is controlled by the GridControl.TotalSummaryVisibility property. Total summary items are specified by the GridColumnSummary objects, and are stored within the TotalSummaries collection. This collection provides methods and properties allowing you to add, remove and access summary items.