2. Most of the events in RAP occur too late to modify the dataset. Any modifications to the SQL should be performed prior to the report engine being initialized. ReportBuilder 9 adds two new events to facilitate this: Report.OnInitializeParameters and Report.BeforeOpenDataPipelines.
There are two very simple and powerful techniques to extend the capabilities of RAP infinitely. These are summarized below and covered in more detail in the RAP.hlp online help. Demos and tutorials are installed to RBuilder\Demos\RAP. The tutorial text is located in RAP.hlp.
1. RAP Pass-Through Functions
These are functions that appear in the Language tab of RAP's Code Toolbox. These functions are written in Delphi and can be called from RAP. RAP's pass-through function architecture enable's developers to add new built-in functions to RAP's code toolbox.
2. Extend RAP's RTTI
RAP's Run-time Type information defines what classes and properties can be accessed via RAP. By default the published properties of any class that is registered with Delphi's RegisterClass procedure is recognized by RAP. In addition many of the public properties and methods of ReportBuilder classes are exposed.
Comments
1. Below is an article on extending RAP.
2. Most of the events in RAP occur too late to modify the dataset. Any
modifications to the SQL should be performed prior to the report engine
being initialized. ReportBuilder 9 adds two new events to facilitate this:
Report.OnInitializeParameters and Report.BeforeOpenDataPipelines.
--------------------------------------------------
Article: Extending RAP
---------------------------------------------------
There are two very simple and powerful techniques to extend the capabilities
of RAP infinitely. These are summarized below and covered in more detail in
the RAP.hlp online help. Demos and tutorials are installed to
RBuilder\Demos\RAP. The tutorial text is located in RAP.hlp.
1. RAP Pass-Through Functions
These are functions that appear in the Language tab of RAP's Code Toolbox.
These functions are written in Delphi and can be called from RAP. RAP's
pass-through function architecture enable's developers to add new built-in
functions to RAP's code toolbox.
2. Extend RAP's RTTI
RAP's Run-time Type information defines what classes and properties can be
accessed via RAP. By default the published properties of any class that is
registered with Delphi's RegisterClass procedure is recognized by RAP. In
addition many of the public properties and methods of ReportBuilder classes
are exposed.
--
Tech Support mailto:support@digital-metaphors.com
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Nard Moseley
Digital Metaphors Corporation
http://www.digital-metaphors.com
Best regards,
Nard Moseley
Digital Metaphors
www.digital-metaphors.com