ireport notes

1:font
 view->font
变量：逻辑运算
参数：条件
字段：数据库
组是一个很重要的概念，一个报表可以多个组，每个组以一个关键字为标记

expression
 valid
  new Boolean(true); "this is a expression";(($P{MyParam}.equals("s")?"yes":"no");
 invalid:
  3 + 2;true;(($P{MyParam}==1?"yes":"no");
 $F{name_field}
 $V{name_variable}
 $P{name_parameter}
 $P!{name_parameter}
 $R{name_resource}
JREmptyDataSource

A scriptlet is a java class whose methods are executed according to specific events
during report creation, like the beginning of a new page, the end of a group, etc.
it is possible to specify an external scriptlet (a java class) or activate
iReport’s internal scriptlet support

Print order
 The Print order determines how the print data is organized on the page when using multiple columns.

graphic elements
 chart,barcode,line, rectangle, ellipse, image)
text fields
 labels and textfield
it could be useful to disable the elements dragging through the mouse by selecting the menu Edit→Disable elements mouse move
 CTRL+M;/options;

Edit->insert page/column separator

Element properties
 Remove Line When Blank\
 Print in first whole band
IMAGE:
 type:File
 value:new java.io.File("")
  has no ";"

Import lib
 edit - > report import ...

Evaluation time
 it defines in which creation phase the Image Expression has to be processed;

Border color:
 click the rectangle in border tab;

It is possible to transform a StaticText in a Textfield by selecting it and pressing the F3 key.
In order to change quickly the expression of one or more generic text elements, select them and press F2.

subreport

 

 

ch06 font
Usually a font is defined by four basic characteristics:
- Font name (font family)
- Font dimension
- Attributes (bold-faced, italics, underlined, barred)
PDF Font Name: This is the name of a predefined PDF document font.
PDF Embedded: This is a flag that specifies if a font, of “external TTF” type, should be included in the PDF file or not.
PDF Encoding: This is a string that specifies the name of the encoding to be used for the character coding.

ch07 PVF
((it.businesslogic.Person)$F{MyPerson})
Registration of the fields of a JavaBean
Registration of the fields for a JRExtendedBeanDataSource
 $P!{<parameter name>} : pstmt
BANDS
 print when expression
 the possibility for the band to be break if it is overflow from the page (Split allowed)
 在下半部分双击可以调整宽度
 A double click on the inferior margin allows to resize the band by adapt the height to the content.
 If one or more consecutive bands have zero height, it is possible to increase its dimension by keeping press the Shift button and to move towards the bottom the inferior margin in the band that precedes it.