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# bi.layer_tree_table
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### 层级树状结构的表格
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{% method %}
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[source](https://jsfiddle.net/fineui/pqyuLoay/)
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{% common %}
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```javascript
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var table = BI.createWidget({
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type: "bi.layer_tree_table",
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width: 600,
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height: 400,
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columnSize: [100, 100, 100, 100, 100, 100, 100, 100, 100, 100],
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minColumnSize: [100, 100, 100, 100, 100, 100, 100, 100, 100, 100],
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header: header,
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items: items,
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crossHeader: crossHeader,
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crossItems: crossItems,
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element: 'body',
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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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| isNeedResize | 是否需要调整列宽 | boolean | false |
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| isResizeAdapt | 是否需要在调整列宽或区域宽度的时候它们自适应变化 | boolean | true |
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| isNeedFreeze | 是否需要冻结表头 | boolean | false |
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| freezeCols | 冻结的列 | array | [] |
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| isNeedMerge | 是否需要合并单元格 | boolean | false |
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| mergeCols | 合并的单元格列号 | array | [] |
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| mergeRule | 合并规则, 默认相等时合并 | function(row1, row2) | 默认row1 = row2 时合并 |
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| columnSize | 单元格宽度集合 | array | [] |
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| minColumnSize | 最小列宽 | array | [] |
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| maxColumnSize | 最大列宽 | array | [] |
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| headerRowSize | 表头高度 | number | 25 |
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| headerCellStyleGetter | | function | BI.emptyFn |
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| summaryCellStyleGetter | | function | BI.emptyFn |
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| sequenceCellStyleGetter | | function | BI.emptyFn |
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| rowSize | 普通单元格高度 | number | 25 |
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| regionColumnSize | 列项间的 | array | [] |
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| header | 表头 | array | [] |
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| items | 子组件 | array | [] |
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| crossHeader | 交叉表头 | array | [] |
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| crossItems | 交叉项 | array | [] |
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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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| setWidth | 设置宽度 | width: 宽度 |
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| setHeight | 设置高度 | height: 高度 |
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| setColumnSize | 设置列宽 | columnSize: 列宽数组 |
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| getColumnSize | 得到列宽 | — |
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| setRegionColumnSize | 设置列项之间的间隙 | columnSize: 列宽数组 |
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| getRegionColumnSize | 获得列项之间的间隙 | — |
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| setVerticalScroll | 设置纵向滚动距离 | scrollTop: 纵向滚动距离 |
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| setLeftHorizontalScroll | 设置左到右横向滚动距离 | scrollLeft: 横向滚动距离 |
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| setRightHorizontalScroll | 设置右往左横向滚动距离 | scrollLeft: 横向滚动距离 |
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| getVerticalScroll | 获取纵向滚动距离 | — |
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| getLeftHorizontalScroll | 获取左到右横向滚动距离 | — |
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| getRightHorizontalScroll | 获取右往左横向滚动距离 | — |
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| attr | 设置属性 | key: 键 value: 值 |
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| restore | 存储 | — |
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| populate | 增加项 | items: array |
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| destroy | 摧毁表 | — |
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