A base class for TRVReportGenerator component.
Unit [VCL/FMX] RVReportGenerator / fmxRVReportGenerator;
Syntax
TCustomRVReportGenerator = class (TComponent)
TObject TPersistent TComponent |
Description
This component is not used directly. Use TRVReportGenerator instead.
Call Execute to process a TRichView component containing a report template, in order to produce a final report. The report may be generated in the context of the main process, or in a background thread.
While processing a report template, the report generator processes data queries by creating query processors. They are created either by DataProvider, or in OnCreateQueryProcessor event.
If reports contain charts, ChartCatalog must be assigned.
While generating reports, the following events occur:
•OnDataQueryProgress allows to show a progress indicator or to abort the generation;
•OnError allows to process errors;
•OnProcessRecord allows to execute your code before processing each record in results of a query processor.
When report generation is finished, OnGenerated event occurs.
The report generator has a list of global report variables.