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Build ID: Eclipse 3.3.0 I20070621-1340 Steps To Reproduce: I've created report with data expanded on 2 pages. I need total pages count in report footer in following form "Page $m of $n", but I cannot choose auto-text "Page $m of $n", because there will be some gaps in output. So I just created html text field with following values: "Page <value-of>pageNumber</value-of> of <value-of>totalPage</value-of>". I get following wrong results: on page 1: "Page 1 of 1" on page 2: "Page 2 of 2" More information: To check what is going on, I temporarily added auto-text with total-page and it worked as expected: on page 1: "2" on page 2: "2" My BIRT version ID: 2.2.1.v20070718 I checked source code of BIRT and debug it. I found that code that populates total page count in located in PDFPageLM.resolveTotalPage() method and works only with auto-text.
suggest defer to future release.
Currently we support totalPage in autoText item. Need we support totalPage variable in script? If we need support it in PDF, we should layout twice.
Deferring this issue, as the requested feature requires that generation-time scripts have access to render-type information (page number etc). Gang's suggested 2-pass rendering solution will kill performance. We should instead focus on improving the usability of autotext element in 2.5. There are several enhancements already logged for that.
Just ran into this problem while trying to show a text block only on the last page of the PDF. Would be nice if a solution was proposed in some way.
This is the forum thread where I expose the problem: http://www.birt-exchange.org/org/forum/index.php/topic/21423-conditional-visibility-block-on-last-page/
Just some additional Info. I am using BIRT 4.2.2. In my Master Page of a PDF Report I have something like this: <VIEWTIME-VALUE-OF>"Page" + pageNumber + " of " + totalPage</VIEWTIME-VALUE-OF> This almost works, but not always. If I have an element with Page Break behaviour of "Before: Always", it works and shows "Page 1 of 2". But if I don't have this element, every page shows "Page 1 of 1", "Page 2 of 2" as already described. This may be an appropriate workaround for someone.
A 2-pass run would kill performance, but shouldn't it be possible to do it similar to Oracle Reports? That is: First, do some pre-calculation for the layout objects: If a container contains a forward-reference like total-number-of-pages, mark this as "do-it-later". If the container is variable-sized (width and height not fixed), go to the parent container, mark it as "do-it-later" and go on recursively, until a fixed-sized parent container is found. If a fixed parent is not found, the report should fail with an appropriate error message. Rendering pass 1: Do the normal rendering. But if a container is marked as "do-it-later", just create a placeholder (think of it as an empty rectangle) for it (we know that it is fixed-sized!) and ignore its contents. Now the total number of pages and so on are known. Rendering pass 2: Render only the "do-it-later" layout objects, that is, replace the corresponding placeholder with the actual content. How this is done depends on the emitter. For PDF, XObjects could be used. For XML-like output formats like Word and HTML, it's just a matter of string search/replace. The design UI should warn the user if a forward-reference is not directly contained in a fixed-sized grid/table cell.
