Gets or sets whether the Calculation stage of the custom summary calculation process should be skipped.
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.
Total and group summaries provide five predefined aggregate functions (Count, Max, Min, Sum and Average). To calculate a summary value using a custom rule, set the summary item's GridColumnSummary.Type property to SummaryType.Custom, and handle the CalculateCustomSummary event.
The CalculateCustomSummary event fires for each data row involved in summary calculation. When calculating a total summary value, the event is raised for each data row. When calculating a group summary value, this event fires for each data row within a group. To enable you to perform any initialization and finalization, the event is also raised before and after processing rows.
The summary calculation consists of the three stages.
The CalculateCustomSummary event occurs multiple times, once for each data row in the grid or group. The SummaryProcess property is set to CustomSummaryProcess.Calculate. At this stage, you should accumulate summaries.
To skip the Calculation stage and calculate a custom summary at the Initialization or Finalization stage, set the event parameter's CustomSummaryEventArgs.TotalValueReady property to true at the Initialization stage. This automatically skips the Calculation stage and the Finalization stage starts immediately.