gnomeking_jasper

It was actually very straight forward - As each subreport was in it's own band, simply setting the band's split type to "Prevent" ensures that it will move the whole sub-report onto a new page to start (but will split if the subreport is too long for a page). If you want the subreport to allow a certain height before it'll split, then set the split type to "Stretch" and set the band height to this minimum, which needs to be bigger than the title. That way it will show the title only when it gets the title plus something else on the page, otherwise it puts the page break before the band.

I realised the way to do this was to have many subreports with each sub-report in its own band so the band will expand to show all data from the subreport.

I have a report made of many customizable sub-reports, each of which has a page header, detail band and page footer. The detail band contains the data, and is conditionally printed based on a "show_tables" parameter and the page footer contains a chart representing the data conditionally printed based on a "show_chart" parameter. When I generate the report with show_tables enabled (and not show_chart) then the page_header for the final sub-report on each page is printed on the new page even though there is no more data to display. Similarly if I use show_chart (and not show_tables) and the chart is on a new page then the page_header is duplicated on the page before the chart. What I would like is a page header that displays before the table/chart on each page that either the table or chart is displayed - but not on any page without either the table or the chart. Can anyone suggest something I could try?

This doesn't appear to work; the preview pane in Jaspersoft Studio attempts to load the customizer instance in Jaspersoft Studio's context rather than the project's context. Unless something clever is going on with the Preview I'm assuming that it uses both the Studio's context (JRE, JR version, no customizers) for the preview. I fudged this by copying my JAR into the ~/.eclipse/1047469814/configuration/org.eclipse.osgi/bundles/38/1/.cp/lib directory - although I don't know when that will change / disappear.

I'm trying to produce a 'summary' report for a lot of different queries on one postgres database. For example, one summary is 'Number and percentage of students achieving each grade' and another summary is 'Top 20 classes' (including class name, number of students, and class teacher). So far I'm doing this using subdatasets and fixed jr:table elements in different detail bands - but that forces me to fix the size of the tables - so if new grades are added then my static formatting needs to be re-worked! Is there a better way to present the output from many individual queries?

Changed Resolution from Open to Fixed Changed Status from Feedback Requested to Resolved Thanks Massimo,I've confirmed that this solves the crash.Bob

Changed Assigned User from - to @User_306070