TcxCustomDataSummaryItem Class

The base class for summary items.

Declaration

delphi

TcxCustomDataSummaryItem = class(
    TCollectionItem
)

Remarks

A summary item calculates and displays a summary of a data item according to one of the predefined algorithms in a footer (footer summary) or a data group (group summary).

The TcxCustomDataSummaryItem class implements base summary functionality.

Main API Members

The list below outlines key members of the TcxCustomDataSummaryItem class. These members allow you to configure common summary item settings.

Summary-Related API Members

FormatSpecifies a custom formatting pattern for summary display text.ItemLinkAllows you to associate the summary item with a data item.KindSpecifies a predefined summary calculation algorithm.

General-Purpose API Members

AssignCopies compatible settings between summary items.BeginUpdate | EndUpdateAllow you to avoid excessive summary recalculations and corresponding redraw operations during batch summary item setting changes.CollectionProvides access to the parent summary item collection.DataController | FieldProvide access to the parent data controller and the source data field in it.IndexReturns the summary item’s index in the parent collection.

Terminal TcxCustomDataSummaryItem Class Descendants

Do not use the TcxCustomDataSummaryItem class directly. Use the following descendants instead:

TcxGridDBTableSummaryItemA summary calculated using values of a tabular View’s data field.TcxGridServerModeBandedSummaryItem TcxGridServerModeSummaryItem TcxGridTableSummaryGroupItemLinkLinks a column with group summaries in a summary group.TcxGridTableSummaryItemA column summary.TcxTreeListSummaryItemA set of appearance and calculation options for a column‘s footer and group summaries.

Inheritance

TObject TPersistent TCollectionItem TcxCustomDataSummaryItem