How to remove the empty space between the bands in JasperReports? - jasper-reports

I'm working on a report in Jasper for Java. I put the table header in the title band, the content in the details band and the summary part of table in the summary band (these are all different tables). The same Dataset is used in all three tables.
Here is the scheme of bands
However, when I print it to pdf (via Java REST service) this gap appears between tables. Picture
Tell me please how to remove it? Any ideas appreciated.

Stretch the row height to full title band.
Also adjust the height of the band using below code snippet:
<band height="<your_couple_of_lines_of_text_height>">
<printWhenExpression><![CDATA[$V{PAGE_NUMBER} < 2]]></printWhenExpression>
the_conditional_header_content_here
</band>

Related

How to setup a jasper report with any length of height?

Say that a jasper report should be generated to a thermal printer. The detail band may be 1 row or 200+ rows.
How to generate jasper report with its height fitting to the row count instead of printing white-spaces in the end?
Set the pageHeight to just one row and then use
isIgnorePagination="true"
When isIgnorePagination is true the report will be generated in a
single page.
Hence, if just one row, it will have the height of one row, if more rows it will not create new pages but generate a continues layout.
For example see: http://jasperreports.sourceforge.net/sample.reference/nopagebreak/

Jasper Report Rows layout, Avery A7654 format

I want to print jasper reports on Avery L7654 (40 Labels per sheet) Label sheet. I have attached my present configuration. With this configuration I am getting 4*12 per sheet. But am looking for 4*10 (40 labels per sheet). Please suggest how do to configure the report.
http://uk.onlinelabels.com/Templates/EU30018-template-microsoft-word.htm
The number of rows you get are determined by the detail band.
If you need a row height 25.5 mm this would give us about 72 pixels.
pixels = (mm * dpi) / 25.4; //The DPI in jasper report is 72
So the definition of the detail band should be:
<detail>
<band height="72">
... your text fields ...
</band>
</detail>

Jasper sub report border line not covering all tuple height

All Works fine but, rows margin do not cover all height. as shown in attached these two pictures.
How I am doing: I put rectangle in detail band, than sub report and other fields. on all fields, sub-report and rectangle i also apply stretchType="RelativeToTallestObject and isStretchWithOverflow="true" for warping up the text which works fine. I am facing this problem still unresolved.
As per my understanding: sub-Report fields are also stretchType="RelativeToTallestObject but didn't detect or get stretched of its main-report column. while if sub-report need extra space it will show properly. I have tried almost every thing available in iReport-Designer.
Drop figures. Use borders, preferably via report styles.

A vertical overflow on a band with horizontal print order

I have a report with this design:
There are columns called Składniki odżywcze (means: nutrients) in this report. Those columns are made using a data source and horizontal print order.
A content of each column is made using a subreport with this design:
This subreport grows vertically and when I have a lot of nutrients and they don't fit into a page I get net.sf.jasperreports.engine.JRRuntimeException: Subreport overflowed on a band that does not support overflow.. I read it's caused because I have horizontal print order and my content grows vertically too much.
What can I do now? I'd like the page was breaked and the rest of nutrients were displayed on the next page.

How to wrap a detail band in Jasper Reports

I have a detail band with potentially a lot of text fields in it. It can get too wide to fit on a page. The result is that it just runs off the edge of the page and you can't see it all. I'd like the detail band to wrap around to another line. Is there any way to do this?
My detail band is built dynamically in the code and the number of fields can vary. I tried manually placing the overflowing fields lower in the band by setting their y values, but then if the text in the fields overflows into two lines, my height calculations are off and the results get really messed up.
So is there any way to constrain the band to fit on the page?
Unfortunatelly, the strech types in jasper only works between bands, not within the band.
You can't (even manualy) create a jrxml which will cause a lower element in a band be correctly possitioned when an upper element overflows.
You will need to create more than one detail band. In iReport, you use 'Add another detail band' (on the detail band context-menu). Dynamically, it would look something like:
JRDesignSection detailSection = (JRDesignSection)design.getDetailSection();
JRDesignBand detail2 = new JRDesignBand();
detailSection.addBand(detail2);
Perhaps on your reportElement for each field in the band you need to set the attribute stretchType="RelativeToTallestObject".
<reportElement stretchType="RelativeToTallestObject" ...>
I'm pretty sure that's what works for me.