Changing TppLabel color during runtime

rbuser

Hello,

I'm using D2008 with RB10.9. I have a TppLabel within a group header that
contains a message or a Timestamp. In the OnGetText event I determine the
message to display and also what color to make the text. It seems that the
color does not always get set properly. Stepping through my code it appears
that I'm setting the MyLabel.Font.Color to the correct color but its
displaying the wrong color. Is there a trick to getting the correct color
all the time? Sometimes it is correct. I tried setting the .Tag property
to what I wanted and then in the OnPrint event setting the color but that
doesn't work.

Thanks in advance,
Rodger

nicocizik

Hi Rodger,

Perhaps the OnGetText event fires too late to change the color property, try
using the Band.BeforePrint event instead. When you say that the color is
incorrect do you mean that you are seeing no change in color from the
original or it is changing, but to the wrong color?

--
Regards,

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

rbuser

It is changing to the wrong color. The odd thing is I can go through the
pages and then go backwards through the pages and they will change colors.
So they could have been the correct color the first time then when I cycle
back through them the colors are wrong. Also some of them are just plain
wrong even the first time through the pages.

Should I move all the OnGetText code to the Band.BeforePrint? I don't
really know what color to make the text until I know what the text is.

Thanks,
Rodger Van Kirk

nicocizik

Hi Rodger,

If the text is inside a data field, you can access it from the BeforePrint
event using the Report.Datapipeline[], however I do not believe
this is the issue. Try tracing into your event code and see why the color
is incorrect. Perhaps the conditional logic is not correct. If you would
like, you can copy the event code here and I can try in on my machine for
you.

--
Regards,

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

rbuser

Just moving the code to the Band.BeforePrint fixed the issue. I think the
problem happened depending on if the group header fell at the bottom of the
page with no details below it. from that point on the colors were off and
if I went back a page after viewing that page the first item on the previous
page's color would be off.

On a side note. How do I make it so that when a group header prints it
needs at least 1 detail band to be shown on that page otherwise it will wait
and print the header on the next page? Seems like I did this once before
long time ago but I can't remember what I set or did. I know its no the
keep together setting.

Thanks in advance,
Rodger Van Kirk

nicocizik

Hi Rodger,

Try adjusting the Group.NewPageThreshold property to keep the group headers
from printing near the bottom without details below it.

--
Regards,

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