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The JasperReports Ultimate Guide

Page 44

8 Report Elements

The generated reports would be empty if you would not put some report elements in the report design.

The report elements are displayable objects like static texts, text fields, images, lines or rectangles, that

you put in your report design sections so that they appear in the final document.

As you can see, the report elements come in two flavors:

_ Text elements: static texts and text fields that display dynamic content;

_ Graphic elements: lines, rectangles and images.

We shall see those two element categories and their particularities in the following sections. For now

we are going to present in detail the element properties that both categories share.

When you add a report element to one of your report sections, you have to specify the relative position

of this element in that particular section and its size, along with other general report element properties

like color, transparency, stretch behavior, etc.

The properties that are common to all types of report elements are grouped in the <reportElement>

tag that can appear in the declaration of all report elements.

XML Syntax

<!ELEMENT reportElement (printWhenExpression?)>

<!ATTLIST reportElement

positionType (Float | FixRelativeToTop | FixRelativeToBottom)

"FixRelativeToTop"

isPrintRepeatedValues (true | false) "true"

mode (Opaque | Transparent) #IMPLIED

x NMTOKEN #REQUIRED

y NMTOKEN #REQUIRED

width NMTOKEN #REQUIRED

height NMTOKEN #REQUIRED

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