Can I detect if the End User has deleted a component

rbuser

I have an application that starts w/ a standard report. In the End User
designer, the user may delete a component from the report. Is there a way
in ppDetailBandBeforePrint to detect whether a TppLabel is still part of the
report (otherwise, accessing it gives an exception).

Joe

nicocizik

Hi Joe,

You can loop through every component in your report using a report object
loop. See the article below for more information about doing this.

----------------------------------------------
Tech Tip: Loop Thru All Objects in a Report
---------------------------------------------

A ReportBuilder report is composed of a set
of components. The basic structure is

Reports.Bands[].Objects[]

The bands and objects within the report can
be accessed directly by object name or
via the Bands and Objects array properties.

Below is an example of using the Bands and
Objects array properties to change the font for
all objects on a report.


uses
ppClass;


procedure AssignFontToReport(aFont: TFont; aReport: TppCustomReport);
var
liBand: Integer;
liObject: Integer;
lObject: TppComponent;

begin

for liBand := 0 to aReport.BandCount-1 do

for liObject := 0 to aReport.Bands[liBand].ObjectCount-1 do
begin
lObject := aReport.Bands[liBand].Objects[liObject];

if lObject.HasFont then
lObject.Font := aFont;

end;

end;


--
Regards,

Nico Cizik
Digital Metaphors
http://www.digital-metaphors.com