iReport Ultimate Guide - Nimsoft Library

Flash ChartsFigure 13-32 Common options on the Widget Configuration tabThe Widget Configuration tab displays a list of properties and their expression values. The standard view of the propertiesincludes the commonly-used properties; including many default property values. In the advanced view, all properties, bothwidget-specific and common ones, are shown in a single table. If you change a property from its default value, it appears in theadvanced view with the overriding value.Figure 13-33 Advanced options on the Widget Configuration tabThe value of every property on the Widget Configuration tab can be given as an expression. When you use the check boxes,fields, and value choosers on the tab, iReport creates a static value of the appropriate type for the expression. Alternatively,you can provide dynamic expressions that will determine the chart appearance based on the data available when the report isgenerated. To view and set custom property expressions, click Show Advanced Options.In the advanced view, you can directly edit the expressions for the widget properties. It is important that expressions return theJava types expected for each property.• Properties that you toggle on or off with check boxes in the simple display must have an expression that evaluates to aBoolean value.265