TcxDataSummaryItem Class

Represents a single summary to calculate on a specific item.

Declaration

TcxDataSummaryItem = class(
    TcxCustomDataSummaryItem
)

Remarks

In addition to the settings inherited from the base TcxCustomDataSummaryItem class, the TcxDataSummaryItem class introduces properties that allow you to:

Access the item whose summaries are calculated (ItemLink).
Specify the position where summaries are displayed (Position).
Specify whether summary values determine the sort order of data groups in a grid control (Sorted).
Associate a summary with an identity value (Tag).

TcxDataSummaryItem objects are stored as elements in the TcxDataSummaryItems collection. TcxDataSummaryItems is the base class for TcxDataFooterSummaryItems and TcxDataGroupSummaryItems which implement footer summaries and group summaries respectively.

To add a summary to a grid control use the TcxCustomDataController.Summary property. This allows you to specify footer summaries, group summaries and group summaries by specific grouping items.