fineui是帆软报表和BI产品线所使用的前端框架。
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# bi.branch_relation
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### 表关联树
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{% method %}
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[source](https://jsfiddle.net/fineui/z5hLcruk/)
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{% common %}
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```javascript
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var tree = BI.createWidget({
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type: "bi.branch_relation",
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element: 'body',
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items: [],
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direction: BI.Direction.Right,
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align: BI.HorizontalAlign.Right,
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centerOffset: -50
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});
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```
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{% endmethod %}
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### 参数设置
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| 参数 | 说明 | 类型 | 默认值 |
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| ------------ | ------- | ------ | -------------------- |
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| centerOffset | 重心偏移量 | number | 0 |
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| direction | 根节点所在方向 | string | BI.Direction.Bottom |
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| align | 对齐方向 | string | BI.VerticalAlign.Top |
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| items | 元素 | array | null |
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### 方法
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| 方法名 | 说明 | 回调参数 |
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| -------- | ---- | ----------- |
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| populate | 刷新内容 | items: 子项数组 |
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