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TcxCustomTreeList.OnSummary Event

Enables you to perform custom summary calculations.

#Declaration

Delphi
property OnSummary: TcxTreeListSummaryEvent read; write;

#Remarks

Sender specifies the tree list.

Arguments and OutArguments specify the passed arguments and the resulting data of the performed calculation.

Values include:

#TcxTreeListSummaryEventArguments

Field Description
Node Specifies the currently processed node.
SummaryItem Specifies summary settings.

#TcxTreeListSummaryEventOutArguments

Field Description
Value Specifies the value of a node’s data cell that belongs to the column used in a calculation.
SummaryValue Specifies the summary value that has been calculated for the previously processed nodes.
CountValue Specifies the number of nodes that have already been processed.
Done Specifies whether default calculation is required. Set Done to True, to prevent default calculation.

Refer to the Creating Summaries help topic for details.

See Also