This article is divided into html, js and css codes to give you a detailed introduction to vue Element-ui input remote search and modification suggestion display template functions. Friends who are interested should take a look at it. I hope it can help everyone.
html:
<template> <el-autocomplete popper-class="my-autocomplete" custom-item="my-remote" v-model="state" :fetch-suggestions="querySearch" placeholder="默认空" icon="close" :on-icon-click="handleIconClick"> </el-autocomplete> </template>
js:
<script> import Vue from 'vue' Vue.component('my-remote', { functional: true, render: function(h, ctx) { var item = ctx.props.item; let str = h('li', ctx.data, [ h('p', { attrs: { class: 'name' } }, [item.value]), h('span', { attrs: { class: 'addr' } }, [item.address]) ]); if (item.str) { // 根据参数不同 修改原模版结构 str = h('center', { attrs: { class: 'ems' } }, [item.str]) } return str }, props: { item: { type: Object, required: true } } }); export default { data() { return { restaurants: [], state: '', timeout: null, _that: {} // 记录this,用来发起http请求 }; }, methods: { querySearch(queryString, cb) { let restaurants = this.restaurants; if (restaurants.length > 0) { // 如果参数都没变化,则使用缓存数据,避免请求沉积 let results = queryString ? restaurants.filter(this.createFilter(queryString)) : restaurants; cb(results); } else { const qtype = ‘参数'; this._that.$http('/inner', { qtype: qtype }) .then((res) => { restaurants = this.loadAll(res); this.restaurants = restaurants; let results = queryString ? restaurants.filter(this.createFilter(queryString)) : restaurants; cb(results); }) .catch((err) => { restaurants = this.loadAll(); let results = queryString ? restaurants.filter(this.createFilter(queryString)) : restaurants; cb(results); }); } }, createFilter(queryString) { return (restaurant) => { if (restaurant.str) return false; return (restaurant.value.indexOf(queryString.toLowerCase()) === 0); }; }, loadAll(data) { let serier = []; if (data) { for (let i = 0, l = data.length; i < l; i++) { let a = data[i]; let b = ''; if (typeof a === "object") { b = a[1]; a = a[0]; } serier.push({ "value": a, "address": b }) } } else { // 如果没有请求到数据,则显示暂无数据! serier.push({ "str": '暂无数据' }) } return serier; }, handleIconClick(ev) { this.state = ""; } }, mounted() { this._that = this; } } </script>
css:
<style lang="scss"> .my-autocomplete { li { line-height: normal !important; padding: 7px !important; .name { text-overflow: ellipsis; overflow: hidden; } .addr { font-size: 12px; color: #b4b4b4; } .highlighted .addr { color: #ddd; } } .ems { font-size: 12px; color: #b4b4b4; } } </style>
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