Question
“How do I implement event-handlers for report templates?”
Solution
- The best solution is to code the calculations and event-handlers in RAP, the run-time Pascal coding evironment included with ReportBuilder Enterprise. RAP enables the event-handler code to be saved in the .rtm templates as part of the report definition.
- If you use Delphi event-handlers as you are doing now, all of the event-handler code must reside in the form upon which the TppReport component resides. As you have discovered, you must write the code in such a manner as to not refer to any components directly by name.
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procedure TForm1.ppLabel1Print(Sender: TObject); var lComponent: TComponent; lLabel: TppLabel; begin lComponent := FindComponent('Label1'); if (lComponent is TppLabel) then begin lLabel := TppLabel(lComponent); lLabel.Caption := 'Hello Caption'; end; end; |