基於el-table封裝的可拖拽行列、選擇列元件的實現
阿新 • • 發佈:2021-12-23
效果
需要環境
elementUI
拖拽外掛Sortable.
需配置屬性
示例
<HTawww.cppcns.comble :columns="columns" :data="list" :setColumn="true" tableKey="CategoriesList" style="width: 100%" border > http://www.cppcns.com // 這裡可以放插槽 <template slot="create_time" slot-scope="scope"> {{ scope.column.label + scope.item.prop }} </template> <template slot="action" slot-scope="scope"> <el-button type="primary" @click="handleEdit(scope.row)" size="small"> 編輯 </el-button> <el-button @click="handleDelete(scope.row)" type="danger" size="small"> 刪除 </el-button> </template> </HTable> import HTable from "@/components/HTable"; export default { components: { HTable },data() { return { list: [],columns: [ { label: "ID",// 描述 prop: "_id",// 列的唯一值。 必須要有 checked: true // 是否展示該列 ... // 一些el-table-column的屬性都可以寫在這裡 },{ label: "分類名稱",prop: "name",checked: true },{ label: "上級分類",prop: "parent.name",{ label: "狀態",prop: "status",width: "100",{ label: "建立時間",prop: "create_time",slotHeaderName: "create_time",// 自定義表頭 checked: true },{ label: "操作",prop: "action",fixed: "right","min-width": "100",slotName: "action",// 自定義單元格插槽 checked: true,disabled: true } ] }; } };
有用到的話給我點個贊!附元件程式碼
<template> <div class="HTable"> <div class="settingBox" v-if="setColumn"> <el-popover placement="bottom-end" trigger="click" popper-class="settingPopper" > <el-checkbox-group v-model="selectCol" @change="handleChangeSelectColumn" > <el-checkbox v-for="item in col" :key="item.prop" :label="item.prop" :disabled="item.disabled" style="display:block;line-height:2;margin-right:0;" >{{ item.label }}</el-checkbox > </el-checkbox-group> <i class="icon el-icon-setting" slot="reference"></i> </el-popover> </div> <el-table v-bind="$attrs" :data="tableData" v-on="$listeners" :key="JSON.stringify(checkedCol)" > <el-table-column v-for="(item,index) in checkedCol" :key="item.prop" v-bind="item" :index="index" :column-key="item.prop" > <template v-if="item.slotHeaderName" v-slot:header="scope"> <slot :name="item.slotHeaderName" v-bind="scope" :item="item"></slot> </template> <template v-if="item.slotName" v-slot:default="scope"> <slot :name="item.slotName" v-bind="scope"></slot> </template> </el-table-column> </el-table> </div> </template> <script> import Sortable from "sortablejs"; export default { name: "HTable",props: { tableKey: String,columns: { type: Array,default() { return []; } },data: { type: Array,setColumn: { type: Boolean,default: false } },watch: { columns: { handler(newVal) { let localVal = this.getStorageCol(); let hotVal = []; if (localVal) { hotVal = this.dataDiff(newVal,localVal); } else { hotVal = [...newVal]; } this.col = hotVal.map( (item,index) => (item = { ...item,index,checked: item.checked || false }) ); this.checkedCol = this.checkedColFun(this.col); this.selectCol = this.checkedCol.map(item => (item = item.prop)); },immediate: true },data: { handler(newVal) { this.tableData = [...newVal]; },col: { handler(newVal) { this.setStorageCol(newVal); },deep: true,immediate: true } },data() { return { tableData: [],col: [],checkedCol: [],selectCol: [] }; },mounted() { document.body.ondrop = function(event) { event.preventDefault(); event.stopPropagation(); }; this.$nextTick(() => { this.rowDrop(); this.columnDrop(); }); },methods: { drap() { this.$nextTick(() => { this.rowDrop(); this.columnDrop(); }); },handleChangeSelectColumn() { this.col.forEach(item => { if (this.selectCol.includes(item.prop)) { item.checked = true; } else { item.checked = false; } }); this.checkedCol = this.checkedColFun(this.col); this.drap(); },rowDrop() { const tbody = document.querySelector(".el-table__body-wrapper tbody"); Sortable.create(tbody,{ onEnd: ({ newIndex,oldIndex }) => { [this.tableData[newIndex],this.tableData[oldIndex]] = [ this.tableData[oldIndex],this.tableData[newIndex] ]; this.drap(); this.$emit("dropRow",{ drapRow: this.tableData[oldIndex],targetRow: this.tableData[newIndex],drapRowIndex: oldIndex,targetRowIndex: newIndex,data: this.tableData }); } }); },columnDrop() { const wrapperTr = document.querySelector(".el-table__header-wrapper tr"); Sortable.create(wrapperTr,{ animation: 180,delay: 0,onEnd: ({ newIndex,oldIndex }) => { const oldItem = this.checkedCol[oldIndex]; const newItem = this.checkedCol[newIndex]; wRDnPTjQWW[this.col[newItem.index].index,this.col[oldItem.index].index] = [ oldItem.index,newItem.index ]; this.col.sort((a,b) => { return a.index - b.index; }); this.checkedCol = this.checkedColFun(this.col); this.tableData = this.tableData.slice(0,this.tableData.length); this.drap(); this.$emit("dropCol",{ colItem: oldItem,newIndex: newIndex,oldIndex: oldIndex,column: this.checkedCol }); } }); },checkedColFun(arr) { return arr.filter(item => item.checked); },setStorageCol(data) { if (this.tableKey && data && data.length > 0) { localStorage.setItem("HTable-" + this.tableKey,JSON.stringify(data)); } },getStorageCol() { let datajson = localStorage.getItem("HTable-" + this.tableKey); return datajson ? JSON.parse(datajson) : ""; },dataDiff(newVal,localVal) { let nl = newVal.length; let ll = localVal.length; if (nl != ll) { return newVal; } else { let np = newVal.map(item => item.prop).sort(); let lp = localVal.map(item => item.prop).sort(); if (np.join() != lp.join()) { return newVal; } else { let nnl = []; for (let i = 0; i < localVal.length; i++) { const item_l = localVal[i]; for (let j = 0; j < newVal.length; j++) { const item_n = newVal[j]; if (item_l.prop === item_n.prop) { nnl.push({ ...item_n,index: item_l.index }); } } } return nnl; } } } } }; </script> <style lang="less" scoped> .HTable { position: relative; .settingBox { width: 36px; height: 36px; border-radius: 2px; border: 1px solid #ebeef5; border-bottom: 0; margin-left: auto; position: relative; .icon { position: absolute; top: 0; left: 0; z-index: 1; width: 36px; height: 36px; text-align: center; font-size: 20px; line-height: 36px; color: #909399; cursor: pointer; } } } </style&www.cppcns.comgt; <style lang="less"> .settingPopper { min-width: 100px !important; } </style>
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