Column Heading Disappears

rbuser

Hi,

I have a report that varies in the data printed. It makes use of multiple
columns if the data will fit. My problems is if I print multiple times and
one of the prior runs was single column (no col head) and then print a
report with 2 or more columns the col heading no longer print. I've tried
setting both column header and pplabel component to visible.

Put another way, how do you display col headers after printing a report with
a single column?

RB 5.56 Delphi 5 Ent

TIA, John Panagia

digitalmetaphors

Check the height setting on the column header. You may have to set it
dynamically since you are creating the columns dynamically.


Cheers,

Jim Bennett
Digital Metaphors

rbuser

Hi Jim,

I've tried setting height of columnheader band to dynamic, doesn't help.
I've also played with all of the various visible and height properties. Just
to be clear, the problem only exists if I first set columns to 1 and then go
back to 2 or more. Anymore ideas?

digitalmetaphors

I wasn't able to reproduce the problem. The following code works in my test
project. Perhaps the components in the column header band need to be
reassigned to that band by setting their Band property?

procedure TForm1.Button1Click(Sender: TObject);
begin

PrintReport(2);

PrintReport(1);

PrintReport(2);

end;

procedure TForm1.PrintReport(aColumnCount: Integer);
begin

CreateColumns(ppReport1, aColumnCount);

ppReport1.Print;

end;

procedure TForm1.CreateColumns(aReport: TppReport; aColumnCount: Integer);
var
lLabel: TppLabel;
begin

aReport.Columns := aColumnCount;

aReport.ColumnHeaderBand.Height := 0.25;

lLabel := TppLabel.Create(nil);
lLabel.Band := aReport.ColumnHeaderBand;
lLabel.AutoSize := True;
lLabel.Caption := 'ColumnHeader';
lLabel.Visible := True;

end;


Cheers,

Jim Bennett
Digital Metaphors

rbuser

Jim,
I was not calling my routine that adjusted the column related properties.
Now the column heading have reappeared. The only remaining problem is when
there is one column RB doesn't display the column header band. Right now I
have label component in the page heading band and hide/show it depending on
number columns. Is there a better way? If not, thanks for all your help.

John Panagia

digitalmetaphors

Column headers and footer aren't supported in a single column report. You
will need to create a group and use the group headers and group footers for
this case. There is an example of dynamically creating a group:
http://www.digital-metaphors.com/tips/DynamicReportCreation.zip


Cheers,

Jim Bennett
Digital Metaphors