Zooming Report With TeeChart On

rbuser

Hello

Does anyone know of any issues with zooming into a report that has an image
of a TeeChart chart on?

I can zoom in and out of a text based report within the web viewer, but if I
zoom the report that has a TeeChart image on it, I get an access violation
within my webtier

I was not aware that the viewer requests the data again from the webtier?

Cheers

Paul

nardmoseley

I just tried a simple text. I created a report that generates a chart from
the customer DBDemos date. I can preview and zomm without encountering any
errors. Try the same test and then try to make a report using the demo
server that demonstrates the error.

I tested using RB 9.02 and TeeChart 7.04.

The web report viewer has to re-request the page from the WebTier. (The web
browser has only an XHTML page and it has no way to scale it on its own.)

The WebTier incrementally caches the TppPage objects in the web cache for
the report session. When the request is received it can read the Page from
its cache and generate a scaled XHTML that is sent to the browser. Thus it
does not have to request the page from the backend report server.




--
Nard Moseley
Digital Metaphors Corporation
http://www.digital-metaphors.com