封装TreeGrid组件
<template>
<el-table
:data="data"
border
:row-style="showRow">
<el-table-column v-for="(column, index) in columns" :width="column.width" :key="column.dataIndex"
:label="column.text">
<template slot-scope="scope">
<span v-if="spaceIconShow(index)" v-for="(space, levelIndex) in scope.row._level" class="ms-tree-space" :key="levelIndex"></span>
<el-button type="success" plain size="mini" round v-if="toggleIconShow(index,scope.row)" @click="toggle(scope.$index)">
<i v-if="!scope.row._expanded" class="el-icon-plus" aria-hidden="true"></i>
<i v-if="scope.row._expanded" class="el-icon-minus" aria-hidden="true"></i>
</el-button>
<el-button size="mini" disabled round v-else-if="index===0">
<i class="el-icon-minus"></i>
</el-button>
<span v-else-if="index===0" class="ms-tree-space"></span>
{{scope.row[column.dataIndex]}}
</template>
</el-table-column>
<el-table-column label="操作" v-if="controls" width="160">
<template slot-scope="scope">
<el-button plain title='修改商品分类' type="primary" size="small" @click="getCateInfoById(scope.row)" icon="el-icon-edit"></el-button>
<el-button plain title='删除商品分类' type="danger" size="small" @click="deleteCategory(scope.row)" icon="el-icon-delete"></el-button>
</template>
</el-table-column>
</el-table>
</template>
<script>
export default {
name: 'tree-grid',
props: {
treeStructure: {
type: Boolean,
default: false
},
columns: {
type: Array,
default: function () {
return []
}
},
// 数据源
dataSource: {
type: Array,
default: function () {
return []
}
},
// 是否展示操作列
controls: {
type: Boolean,
default: true
},
// 是否默认展开所有树
defaultExpandAll: {
type: Boolean,
default: false
}
},
data () {
return {}
},
computed: {
// 格式化数据源
data: function () {
let me = this
if (me.treeStructure) {
let data = this.handleData(me.dataSource, null, null, me.defaultExpandAll)
return data
}
return me.dataSource
}
},
methods: {
// 数据转换
handleData: function (data, parent, level, expandedAll) {
let _this = this
let tmp = []
Array.from(data).forEach(function (record) {
if (record._expanded === undefined) {
_this.$set(record, '_expanded', expandedAll)
}
if (parent) {
_this.$set(record, '_parent', parent)
}
let _level = 0
if (level !== undefined && level !== null) {
_level = level + 1
}
_this.$set(record, '_level', _level)
tmp.push(record)
if (record.children && record.children.length > 0) {
let children = _this.handleData(record.children, record, _level, expandedAll)
tmp = tmp.concat(children)
}
})
return tmp
},
// 显示行
showRow: function ({row, rowIndex}) {
let show = (row._parent ? (row._parent._expanded && row._parent._show) : true)
row._show = show
return show ? '' : 'display:none;'
},
// 展开下级
toggle: function (trIndex) {
let me = this
let record = me.data[trIndex]
record._expanded = !record._expanded
},
// 显示层级关系的空格和图标
spaceIconShow (index) {
let me = this
if (me.treeStructure && index === 0) {
return true
}
return false
},
// 点击展开和关闭的时候,切换图标
toggleIconShow (index, record) {
let me = this
if (me.treeStructure && index === 0 && record.children && record.children.length > 0) {
return true
}
return false
},
getCateInfoById (row) {
// 根据ID查询分类信息
this.$emit('editCate', row.cat_id)
},
deleteCategory (row) {
// 删除分类
this.$emit('deleteCate', row.cat_id)
}
}
}
</script>
<style scoped>
.ms-tree-space{
display: inline-block;
width: 28px;
}
.el-button--mini, .el-button--mini.is-round {
padding: 7px;
}
</style>
READEME
# TreeGrid组件使用说明
## Attributes
| 参数 | 说明 | 类型 | 可选值 | 默认值 |
| ------------- | -------------- | ------- | -------------------- | ------ |
| treeStructure | 是否树形结构 | Boolean | - | false |
| columns | 列的属性 | Array | text/dataIndex/width | - |
| dataSource | 数据源 | Array | - | [] |
| controls | 是否显示操作列 | Boolean | - | true |
## Events
| 事件名称 | 说明 | 回调参数 |
| -------- | ------------ | ---------- |
| deleteCate | 删除商品分类 | 商品分类id |
| editCate | 编辑商品分类 | 商品分类id |
## 示例
<tree-grid
:treeStructure="true"
:columns="columns"
:data-source="dataSource"
@deleteCate="deleteCategory"
@editCate="editCategory"
>
</tree-grid>
data () {
return {
dataSource: [],
columns: [{
text: '分类名称',
dataIndex: 'cat_name',
width: ''
}, {
text: '是否有效',
dataIndex: 'cat_deleted',
width: ''
}, {
text: '排序',
dataIndex: 'cat_level',
width: ''
}]
}
},
methods: {
deleteCategory (cid) {
console.log(cid)
},
editCategory (cid) {
console.log(cid)
}
}