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TdxGridReportLink.OnCustomDrawHeaderCell Event

Occurs when the column headers in the report are going to be drawn.

Declaration

property OnCustomDrawHeaderCell: TdxGridReportLinkCustomDrawHeaderCellEvent read; write;

Remarks

Handle the OnCustomDrawHeaderCell event handler to perform custom drawing of the column headers in a report.

Parameter Description
Sender Represents the report link that renders the report
ACanvas A TCanvas instance for drawing the header cell on the report.
AView The view that contains the data being printed.
AColumn The column whose header is to be drawn.
AnItem Specifies the properties of the printed cell.
ADone Determines whether custom drawing has finished and that default painting is not required.

Custom drawing can be disabled by setting the SupportedCustomDraw property to False. This will improve application performance slightly as resources don’t have to be created to support custom draw handlers.

See Also