Stopping a Report in Preview

rbuser

Hi there,

I've build my own Preview-Form using TppViewer.
The Report-Settings are onePass and Cachepages.

Is it possible to stop the Report if I choose Lastpage and
if it is, will I loose the printed Pages for Preview or are they
accessable in my Prieview-Form???

regards
R.Dion

digitalmetaphors

Since you have CachePages enabled, when you choose last page the in-between
pages will be generated and stored as well. When you page back through the
rest of the report the pages will be retrieved from cache. The pages
themselves, should you need them, can be retrieved using
Report.Publisher.Pages[Index].

--
Cheers,

Alexander Kramnik
Digital Metaphors

rbuser

Hi Alexander,

in-between

Thank's. It works. It's nearly what I need.

Is it possible to do something like this:

In Preview I call "Lastpage". The Report starts generating the Pages.
The User presses a "Stop"-Button to stop the Report. Maybe there are 20
Pages generated.
These 20 Pages are stored in cache.
How can I restart the Report at Page 21 without loosing the cached Pages???

Any ideas???

regards
R.Dion

digitalmetaphors

When the report asks for a page, the cache is first checked for the page
and, if the page does not exist in the cache, only then is it regenerated.
Therefore you should be able to simply keep going through the report if you
havent cleared the cache. How are you implementing the stop logic? Make sure
that you aren't doing anything that would clear the report cache in which
case you would lose the generated pages.

--
Cheers,

Alexander Kramnik
Digital Metaphors

rbuser

Hello Alexander,

you
sure

I Call "Report.LastPage" and to stop the Report I call "Report.Stop".
That works fine, but after calling "Report.Stop" I can't tell the Report to
continue. The Report has maybe 20 Pages and I can navigate in this 20 Pages
(Report.AbsolutePageCount).
What I want is to continue generating the Report at Page 21 without loosing
the previous generated Pages.

How can I implement this?? I really need a solution!!

regards
R.Dion

digitalmetaphors

You shold call Viewer.Cancel rather than Report.Stop. Then you can call
Viewer.LastPage to keep generating the rest of the report.

--
Cheers,

Alexander Kramnik
Digital Metaphors

rbuser

Hello Alexander,


Thank you!
It seems to work. I still have some Problems, but it looks good.
Navigating through the cached pages is a problem. If I reach the
last page and call Nextpage, the viewer jumps back to page 1
instead of generating the next page.
The second time I each the last page, the Report starts generating
after calling Nextpage. Strange, isn't it???
I'll spent some time on it, trying to locate the problem.

regards
R.Dion