介绍JComponentPack产品中的AComboBox控件

最新推荐文章于 2025-09-09 09:10:31 发布

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最新推荐文章于 2025-09-09 09:10:31 发布

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原文链接：https://my.oschina.net/javastudy/blog/31

AComboBox是JComponentPack产品中的一款下拉组件，不同于核心Java Swing包中的JComboBox。该组件支持自定义弹出图标、弹出组件等特性，并提供了一个默认的AbstractComponentFactory，能够根据当前值类型配置弹出图标和组件。

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Introduce the AComboBox component

Overview

The AComboBox is a drop down component in JComponentPack product, it’s different with the “ JComboBox” component in the core Java swing package, it can set the popup icon, popup component, etc.

Main Features

1. Customize the popup icon

The AComboBox component have the method “setPopupIcon(Icon)”, you can change the popup icon for your requirements, see the screenshot:

2. Customize the popup component

The AComboBox component have the method “setPopupComponent(Component), you can set the component will be display in the drop down menu.

3. Customize the component factory, this is a new feature since JComponentPack 1.1.0, You can configure the popup icon, popup component based the current value’s type, the method “setComponentFactory(AbstractComponentFactory)” in AComboBox can be used for this goal.
AComboBox currently provide a default AbstractComponentFactory, it can configure the Date value to use the calendar popup icon and JCalendar component, see the article “JCalendar new features in JComponentPack 1.1.0” for details.

Sample Code

Configure the AComboBox component to use the Date value

// create the AComboBox
AComboBox comboBox = new AComboBox();
comboBox.setValue(new Date());
// configure the date format
DateCellRenderer renderer = (DateCellRenderer) comboBox.getRenderer();
renderer.setFormat(DateFormat.getDateInstance());

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JComponentPack是基于Swing框架的Java GUI控件集合，它包括JDataGrid电子表格版本， JDataGrid数据库版本，JComponentSet--Java swing控件集。

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