antdv table默认勾选不触发change事件
时间: 2023-09-01 20:03:17 浏览: 103
antdv table组件中,默认勾选不会触发change事件,这是因为antdv的table组件是基于React开发的,React的设计理念是"单向数据流",即父组件向子组件传递props,子组件通过修改props来通知父组件更新数据。因此,默认勾选不触发change事件是为了遵循React的设计原则。
如果我们希望在勾选或取消勾选时触发change事件,我们可以手动在表格列的render函数中添加onChange事件。具体的处理方式可以参考官方文档中的示例代码。
另外,antdv table还提供了其他事件来处理勾选相关的操作,例如onSelect、onSelectAll等事件。这些事件可以在勾选或取消勾选时触发,我们可以在事件回调函数中进行相应的处理。
总之,antdv table默认勾选不触发change事件是为了遵循React的设计原则,如果我们需要在勾选时触发change事件,可以手动添加onChange事件或者使用其他提供的勾选相关事件来处理。
相关问题
el-table 勾选触发事件
### Element UI Table Checkbox Trigger Event Example
In Element UI, `el-table` provides support for checkboxes that allow users to select one or multiple rows. When handling events triggered by these checkboxes, developers can use specific methods and properties provided by the component.
The following code demonstrates how to handle selection change events using an `el-table`. This includes defining a method named `handleSelectionChange`, which will be called whenever selections are changed:
```javascript
methods: {
handleSelectionChange(selection) {
console.log('Current selected items:', selection);
}
}
```
To bind this handler with the table's selection changes, add the attribute `@selection-change="handleSelectionChange"` within the `<el-table>` tag as shown below[^2]:
```html
<template>
<div>
<el-table :data="tableData" @selection-change="handleSelectionChange">
<el-table-column type="selection"></el-table-column>
<!-- Other columns -->
</el-table>
</div>
</template>
<script>
export default {
data() {
return {
tableData: [
{ date: '2016-05-03', name: 'Tom' },
{ date: '2016-05-02', name: 'John' }
]
};
},
methods: {
handleSelectionChange(selection) {
console.log('Selected Items:', selection);
}
}
};
</script>
```
For more detailed information on configuring tables including advanced features like customizing column content, pagination, sorting etc., refer directly to official documentation pages dedicated specifically towards [Element Plus Table Component](https://element-plus.org/en-US/component/table.html)[^3].
el table 默认勾选某行 vue
在Vue.js中,如果你想让el-table组件默认选择某一行,可以使用`v-model`属性绑定一个数组,并在数据中预先设置一个标记该行的数据项为已选的状态。首先,在data中定义一个数组,比如:
```javascript
data() {
return {
selectedRowKeys: [], // 用于存储选中的行的key
tableData: [
{ id: 1, name: '行一', checked: false },
{ id: 2, name: '行二', checked: false },
{ id: 3, name: '行三', checked: true } // 预设某行为已选状态
]
}
}
```
然后在模板上绑定`selectedRowKeys`到表格的`row-key`和`default-checked-keys`属性上:
```html
<el-table :data="tableData" row-key="id">
<template slot-scope="scope">
<el-checkbox v-model="scope.row.checked"
@change="handleCheckboxChange(scope.$index, scope.row)">选择</el-checkbox>
<!-- 其他列内容 -->
</template>
</el-table>
<script>
methods: {
handleCheckboxChange(index, row) {
if (row.checked) {
this.selectedRowKeys.push(row.id); // 行被选中时添加键值
} else {
const indexInSelected = this.selectedRowKeys.indexOf(row.id);
if (indexInSelected !== -1) {
this.selectedRowKeys.splice(indexInSelected, 1); // 行取消选中时移除键值
}
}
}
}
</script>
```
在这个例子中,当用户点击行内的复选框时,`handleCheckboxChange`方法会被触发,更新`selectedRowKeys`数组。这样,默认显示已设置`checked: true`的那行会被勾选。
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