fineui是帆软报表和BI产品线所使用的前端框架。
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# bi.virtual_group
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## 优化过的buttonGroup,删除看不见的元素 基类[BI.Widget](/core/widget.md)
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{% method %}
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[source](https://jsfiddle.net/fineui/9pd0dct0/)
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{% common %}
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```javascript
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BI.createWidget({
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element: "#wrapper",
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type: "bi.virtual_group",
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width: 500,
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height: 300,
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chooseType: BI.ButtonGroup.CHOOSE_TYPE_MULTI,
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layouts: [{
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type: "bi.vertical"
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}, {
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type: "bi.center_adapt",
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}],
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items:[]
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})
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```
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{% endmethod %}
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## API
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##### 基础属性
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| 参数 | 说明 | 类型 | 可选值 | 默认值
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| :------ |:------------- | :-----| :----|:----
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| items | 子组件数组 | array | — | [ ] |
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| layouts | 布局 | array | — | [{type: "bi.center",hgap: 0,vgap: 0}] |
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## 对外方法
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| 名称 | 说明 | 回调参数
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| :------ |:------------- | :-----
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| setValue | 设置value值 | value,可以是单个值也可以是个数组 |
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| getValue | 获取被选中的值 |—|
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| prependItems | 内部前插入 | items |
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| addItems | 内部后插入 | items |
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| populate | 刷新列表 | items |
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| render | 渲染列表 | —|
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---
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