TdxReportControlNotifyEvent Type

The procedural type for general report-related notification events in a TdxReportControl component.

Declaration

TdxReportControlNotifyEvent = procedure(ASender: TdxCustomReportControl) of object;

Parameters

Name	Type	Description
ASender	TdxCustomReportControl	Provides access to the Report control that raised the notification event. Tip Cast the ASender parameter value to the TdxReportControl class to access all public API members.

Remarks

Handle report-related notification events to execute custom code in response to certain changes in your ExpressReports-powered application.

Code Example: Save Report Layout to File on Every Change

The following code example saves the current Report layout to a file in the REPX format every time a user saves pending changes in the Report Designer dialog:

Delphi

uses
  dxReport.Control;  // Declares the TdxReport class
// ...

procedure TMyForm.dxReport1LayoutChanged(ASender: TdxCustomReportControl);
begin
  ASender.Layout.SaveToFile(ASender.ReportName + '.xml');
end;

C++

#include "dxReport.Control.hpp"  // Declares the TdxReport class

// Add the following linker directive to the corresponding CPP source file:
#pragma link "dxReport.Control"  // Required to use dxReport.Control.hpp declarations
// ...

void __fastcall TMyForm::dxReport1LayoutChanged(TdxCustomReportControl *ASender)
{
  ASender->Layout->SaveToFile(ASender->ReportName + ".xml");
}

Direct TdxReportControlNotifyEvent Type Reference

The TdxCustomReportControl.OnLayoutChanged event references the TdxReportControlNotifyEvent procedural type.