region on report design is nil at runtime

rbuser

I have a fairly simple report design in which most of the content is
dynamic. In the header band, I have placed a region with no other
content--the rest is created dynamically. When I run the report, and
try to place TppLabels in the region, it fails because the region is
nil.

No code touches the region until I try to create content. What am I
missing?

Thanks,

Bill

nicocizik

Hi Bill,

There is no reason the region should be nil unless you are dynamically
creating or freeing it. I did a simple test following your
specifications and was able to successfully add a label created in code
to an empty region in the header band. Below is my code.

procedure TForm1.Button1Click(Sender: TObject);
var
lLabel: TppLabel;
begin

lLabel := TppLabel.Create(Self);
lLabel.Height := 1;
lLabel.Width := 1;
lLabel.Caption := 'My Label';
lLabel.Region := ppRegion1;

ppReport1.Print;

end;

rbuser

Nico Cizik (Digital Metaphors) wrote:


Nico, I understand, but I have no code freeing it. The pattern in the
report design and its code are parallel to the patter of other reports,
with the exception that in other reports, groups are used in many
places where it does not seem necessary. In this report I have (as yet)
created no groups.

I have taken to creating the region dynamically, which at least allows
me to proceed.

However, while I see it on my preview, along with the ppLabels I put in
it, when I print, the region and labels are absent. I have never seen a
preview before which did not print everything in it.

Bill