GridControl.CustomSummary Event

Enables you to calculate summary values manually.

Namespace: DevExpress.Xpf.Grid

Assembly: DevExpress.Xpf.Grid.v14.2.dll

Declaration

C#

public event CustomSummaryEventHandler CustomSummary

VB.NET

Public Event CustomSummary As CustomSummaryEventHandler

Event Data

The CustomSummary event's handler receives an argument of the CustomSummaryEventArgs type. The following properties provide information specific to this event:

Property	Description
FieldValue	Gets the processed field value.
GroupLevel	Gets the nested level of the group whose summary value is being calculated.
GroupRowHandle	Gets the handle of a group row whose child data rows are involved in summary calculation.
IsGroupSummary	Gets whether a group summary value is being calculated.
IsTotalSummary	Gets whether a total summary value is being calculated.
Item	Gets a summary item whose value is being calculated.
Row
RowHandle	Gets the processed row's handle.
SummaryProcess	Gets a value indicating the current calculation stage.
TotalValue	Gets or sets the total or group summary value.
TotalValueReady	Gets or sets whether the Calculation stage of the custom summary calculation process should be skipped.

Remarks

total summaries and group summaries provide five predefined aggregate functions (COUNT, MAX, MIN, SUM and AVG). If you want to calculate summaries using custom rules, handle the CustomSummary event. This event enables you to implement custom aggregate functions or calculate summary values, using a custom algorithm.

To learn more, see Custom Summary.