Vue+ElementUI 封裝簡易PaginationSelect組件的詳細步驟
在實際開發工作中,經常會碰到當select下拉數據過需要做分頁的情況
這裡簡單介紹封裝的一個Pagination-Select組件幾個步驟
封裝的比較簡易,可以根據自己的項目進行改動
- /components/Pagination-Select/index.vue
<template> <div id="PaginationSelect"> <el-select v-model="value" :placeholder="selectOptions.placeholder" :filterable="selectOptions.filterable" :size="selectOptions.size" :collapse-tags="selectOptions.collapseTags" :multiple="selectOptions.multiple" :clearable="selectOptions.clearable" @change="selectChange"> <el-option v-for="item in (selectOptions.selectData).slice((selectPage.currentPage - 1) * selectPage.pageSize, selectPage.currentPage * selectPage.pageSize)" :key="item.value" :label="item.label" :value="item.value"> </el-option> <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="selectPage.currentPage" layout="prev, pager, next" :page-size="selectPage.pageSize" :total="selectOptions.selectData.length"> </el-pagination> </el-select> </div> </template> <script> export default { name: 'PaginationSelect', props: { selectOptions: { type: Object, default: () => {} } }, data () { return { selectPage: { currentPage: 1, pageSize: 3 }, value: '' } }, methods: { selectChange (val) { this.$emit('getSelectVal', val) }, handleSizeChange (val) { this.selectPage.pageSize = val }, handleCurrentChange (val) { this.selectPage.currentPage = val } } } </script> <style lang="less"> .el-pagination { display: flex; justify-content: center; } </style>
- demo項目,這邊直接放在App.vue中使用
<template> <div id="app"> <Pagination-Select :selectOptions="selectOptions" @getSelectVal="getSelectVal" /> </div> </template> <script> import PaginationSelect from './components/Pagination-Select' export default { name: 'App', components: { PaginationSelect }, data () { return { // select組件配置項 selectOptions: { filterable: true, clearable: true, placeholder: '請選擇aaa', size: 'small', multiple: false, collapseTags: false, selectData: [] } } }, created () { this.querySelectData() }, methods: { querySelectData () { setTimeout(() => { this.selectOptions.selectData = [ { value: '1', label: '黃金糕' }, { value: '2', label: '雙皮奶' }, { value: '3', label: '蚵仔煎' }, { value: '4', label: '龍須面' }, { value: '5', label: '北京烤鴨' } ] }, 2000) }, getSelectVal (val) { console.log(val, 'val') } } } </script> <style lang="less"> #app { display: flex; justify-content: center; } </style>
- 根據selectOptions配置項修改組件屬性,父組件請求數據傳入子組件進行渲染,當子組件出發change方法時
使用emit將所選的值回傳父組件,進行後續代碼邏輯
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