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# bi.preview_table
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### 用于表格预览，继承BI.Widget
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{% method %}
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[source](https://jsfiddle.net/fineui/po4s0hub/)
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{% common %}
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```javascript
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BI.createWidget({
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type: "bi.preview_table",
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header: [[{
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text: "表头1"
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}, {
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text: "表头2"
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}, {
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text: "表头3"
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}]],
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element: 'body',
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columnSize: [100, "", 50],
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items: [[{
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text: "第一行第一列"
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}, {
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text: "第一行第二列"
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}, {
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text: "第一行第三列"
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}]]
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});
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```
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{% endmethod %}
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##参数
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| 参数 | 说明 | 类型 | 默认值 |
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| ------------- | ---- | ------------ | ----- |
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| isNeedFreeze | 是否冻结 | boolean | false |
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| freezeCols | 冻结的列 | array | [] |
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| rowSize | 行高 | array/number | null |
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| columnSize | 列宽 | array | [] |
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| headerRowSize | 表头行高 | number | 30 |
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| header | 表头内容 | array | [] |
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| items | 子组件 | array | [] |
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## 方法
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| 方法名 | 说明 | 用法 |
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| ---------------------------- | ---------------- | ------------------------------------ |
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| resize | 调整表格 | resize() |
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| setColumnSize | 设置列宽 | setColumnSize(columnSize) |
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| getColumnSize | 得到列宽 | getColumnSize() |
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| getCalculateColumnSize | 获得计算后的列宽 | getCalculateColumnSize() |
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| setHeaderColumnSize | 设置表头的列宽 | setHeaderColumnSize(columnSize) |
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| setRegionColumnSize | 设置列项之间的间隙 | setRegionColumnSize(columnSize) |
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| getRegionColumnSize | 获得列项之间的间隙 | getRegionColumnSize() |
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| getCalculateRegionColumnSize | 获取计算后的列项之间的间隙 | getCalculateRegionColumnSize() |
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| getCalculateRegionRowSize | 获取计算后的列项上下之间的间隙 | getCalculateRegionRowSize() |
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| getClientRegionColumnSize | 获取浏览器中显示的列项之间的间隙 | getClientRegionColumnSize() |
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| getScrollRegionColumnSize | 获取横向滚动条宽度 | getScrollRegionColumnSize() |
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| getScrollRegionRowSize | 获取纵向滚动条宽度 | getScrollRegionRowSize() |
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| hasVerticalScroll | 是否含有数值滚动条 | hasVerticalScroll() |
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| setVerticalScroll | 设置纵向滚动距离 | setVerticalScroll(scrollTop) |
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| setLeftHorizontalScroll | 设置左到右横向滚动距离 | setLeftHorizontalScroll(scrollLeft) |
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| setRightHorizontalScroll | 设置右往左横向滚动距离 | setRightHorizontalScroll(scrollLeft) |
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| getVerticalScroll | 获取纵向滚动距离 | getVerticalScroll() |
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| getLeftHorizontalScroll | 获取左到右横向滚动距离 | getLeftHorizontalScroll() |
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| getRightHorizontalScroll | 获取右往左横向滚动距离 | getRightHorizontalScroll() |
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| getColumns | 获取列项 | getColumns() |
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| resizeHeader | 调整表头 | resizeHeader() |
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| attr | 设置属性 | attr(key, value) |
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| populate | 增加行 | populate(rows) |
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| destroy | 摧毁表 | destroy() |
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