el-cascader添加全选功能
时间: 2023-11-22 15:50:56 浏览: 63
为el-cascader添加全选功能的步骤如下:
1.在el-cascader的数据源中添加“全选”选项,例如:
```javascript
options: [{
value: 'zhinan',
label: '指南',
children: [{
value: 'shejiyuanze',
label: '设计原则',
children: [{
value: 'yizhi',
label: '一致'
}, {
value: 'fankui',
label: '反馈'
}, {
value: 'xiaolv',
label: '效率'
}, {
value: 'kekong',
label: '可控'
}]
}, {
value: 'daohang',
label: '导航',
children: [{
value: 'cexiangdaohang',
label: '侧向导航'
}, {
value: 'dingbudaohang',
label: '顶部导航'
}]
}]
}, {
value: 'zujian',
label: '组件',
children: [{
value: 'basic',
label: 'Basic',
children: [{
value: 'layout',
label: 'Layout 布局'
}, {
value: 'color',
label: 'Color 色彩'
}, {
value: 'typography',
label: 'Typography 字体'
}, {
value: 'icon',
label: 'Icon 图标'
}, {
value: 'button',
label: 'Button 按钮'
}]
}, {
value: 'form',
label: 'Form',
children: [{
value: 'radio',
label: 'Radio 单选框'
}, {
value: 'checkbox',
label: 'Checkbox 多选框'
}, {
value: 'input',
label: 'Input 输入框'
}, {
value: 'input-number',
label: 'InputNumber 计数器'
}, {
value: 'select',
label: 'Select 选择器'
}, {
value: 'cascader',
label: 'Cascader 级联选择器'
}, {
value: 'switch',
label: 'Switch 开关'
}, {
value: 'slider',
label: 'Slider 滑块'
}, {
value: 'time-picker',
label: 'TimePicker 时间选择器'
}, {
value: 'date-picker',
label: 'DatePicker 日期选择器'
}, {
value: 'datetime-picker',
label: 'DateTimePicker 日期时间选择器'
}, {
value: 'upload',
label: 'Upload 上传'
}, {
value: 'rate',
label: 'Rate 评分'
}, {
value: 'form',
label: 'Form 表单'
}]
}]
}, {
value: 'ziyuan',
label: '资源',
children: [{
value: 'axure',
label: 'Axure Components'
}, {
value: 'sketch',
label: 'Sketch Templates'
}, {
value: 'jiaohu',
label: '组件交互文档'
}]
}, {
value: 'ziyuan1',
label: '资源1',
children: [{
value: 'axure1',
label: 'Axure Components1'
}, {
value: 'sketch1',
label: 'Sketch Templates1'
}, {
value: 'jiaohu1',
label: '组件交互文档1'
}]
}, {
value: 'ziyuan2',
label: '资源2',
children: [{
value: 'axure2',
label: 'Axure Components2'
}, {
value: 'sketch2',
label: 'Sketch Templates2'
}, {
value: 'jiaohu2',
label: '组件交互文档2'
}]
}, {
value: 'ziyuan3',
label: '资源3',
children: [{
value: 'axure3',
label: 'Axure Components3'
}, {
value: 'sketch3',
label: 'Sketch Templates3'
}, {
value: 'jiaohu3',
label: '组件交互文档3'
}]
}, {
value: 'ziyuan4',
label: '资源4',
children: [{
value: 'axure4',
label: 'Axure Components4'
}, {
value: 'sketch4',
label: 'Sketch Templates4'
}, {
value: 'jiaohu4',
label: '组件交互文档4'
}]
}, {
value: 'ziyuan5',
label: '资源5',
children: [{
value: 'axure5',
label: 'Axure Components5'
}, {
value: 'sketch5',
label: 'Sketch Templates5'
}, {
value: 'jiaohu5',
label: '组件交互文档5'
}]
}]
```
2.在el-cascader的模板中添加全选按钮,例如:
```html
<template>
<el-cascader
:options="options"
:props="props"
v-model="selectedOptions"
@change="handleChange"
@expand-change="handleExpandChange"
@visible-change="handleVisibleChange"
@remove-tag="handleRemoveTag"
@clear="handleClear"
:show-all-levels="false"
:check-strictly="true"
:expand-trigger="expandTrigger"
:filterable="filterable"
:placeholder="placeholder"
:disabled="disabled"
:size="size"
:popper-class="popperClass"
:before-filter="beforeFilter"
:debounce="debounce"
:change-on-select="changeOnSelect"
:popper-append-to-body="popperAppendToBody"
:hover-threshold="hoverThreshold"
:load-data="loadData"
:loading-text="loadingText"
:no-match-text="noMatchText"
:no-data-text="noDataText"
:popper-options="popperOptions"
:emit-path="emitPath"
:value-consists-of="valueConsistsOf"
:collapse-tags="collapseTags"
:show-always="showAlways"
:clearable="clearable"
:expand-trigger-on-focus="expandTriggerOnFocus"
:change-on-blur="changeOnBlur"
:before-clear="beforeClear"
:popper-append-to-body="popperAppendToBody"
:popper-options="popperOptions"
:filter-method="filterMethod"
:reserve-keyword="reserveKeyword"
:default-first-option="defaultFirstOption"
:popper-class="popperClass"
:popper-append-to-body="popperAppendToBody"
:popper-options="popperOptions"
:before-clear="beforeClear"
:before-expand="beforeExpand"
:before-select="beforeSelect"
:clear-icon="clearIcon"
:expand-icon="expandIcon"
:loading-icon="loadingIcon"
:multiple-limit="multipleLimit"
:show-checkbox="showCheckbox"
:check-strictly="checkStrictly"
:emit-path="emitPath"
:lazy="lazy"
:lazy-load="lazyLoad"
:lazy-method="lazyMethod"
:model-value="modelValue"
:filter-method="filterMethod"
:debounce="debounce"
:change-on-select="changeOnSelect"
:expand-trigger-on-focus="expandTriggerOnFocus"
:change-on-blur="changeOnBlur"
:before-clear="beforeClear"
:before-expand="beforeExpand"
:before-select="beforeSelect"
:clear-icon="clearIcon"
:expand-icon="expandIcon"
:loading-icon="loadingIcon"
:multiple-limit="multipleLimit"
:show-checkbox="showCheckbox"
:check-strictly="checkStrictly"
:emit-path="emitPath"
:lazy="lazy"
:lazy-load="lazyLoad"
:lazy-method="lazyMethod"
:model-value="modelValue"
ref="cascader"
>
<template #suffix>
<el-checkbox
v-model="isAllSelected"
@change="handleAllSelectedChange"
:indeterminate="isIndeterminate"
>
全选
</el-checkbox>
</template>
</el-cascader>
</template>
```
3.在el-cascader的脚本中添加全选相关的逻辑,例如:
```javascript
<script>
export default {
data() {
return {
options: [{
value: 'zhinan',
label: '指南',
children: [{
value: 'shejiyuanze',
label: '设计原则',
children: [{
value: 'yizhi',
label: '一致'
}, {
value: 'fankui',
label: '反馈'
}, {
value: 'xiaolv',
label: '效率'
}, {
value: 'kekong',
label: '可控'
}]
}, {
value: 'daohang',
label: '导航',
children: [{
value: 'cexiangdaohang',
label: '侧向导航'
}, {
value: 'dingbudaohang',
label: '顶部导航'
}]
}]
}, {
value: 'zujian',
label: '组件',
children: [{
value: 'basic',
label: 'Basic',
children: [{
value: 'layout',
label: 'Layout 布局'
}, {
value: 'color',
label: 'Color 色彩'
}, {
value: 'typography',
label: 'Typography 字体'
}, {
value: 'icon',
label: 'Icon 图标'
}, {
value: 'button',
label: 'Button 按钮'
}]
}, {
value: 'form',
label: 'Form',
children: [{
value: 'radio',
label: 'Radio 单选框'
}, {
value: 'checkbox',
label: 'Checkbox 多选框'
}, {
value: 'input',
label: 'Input 输入框'
}, {
value: 'input-number',
label: 'InputNumber 计数器'
}, {
value: 'select',
label: 'Select 选择器'
}, {
value: 'cascader',
label: 'Cascader 级联选择器'
}, {
value: 'switch',
label: 'Switch 开关'
}, {
value: 'slider',
label