TdxGridReportLink.OnCustomDrawHeaderCell Event

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

Declaration

delphi

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.