表格分页——tablePagination
背景:表格是最为通用的展示方式,为了展示的统一性,以及分页组件的重用,这里写一个分页组件,供比较多或者较少数据2种表格进行分页展示。
分页组件:
<template> <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="currentPage" :page-sizes="pageSizes" :page-size="pageSize" layout="total, sizes, prev, pager, next, jumper" :total="pageTotal"/> </template> <script> export default { props: { tableBegin: {// 总数据 type: Array, default () { return [] } }, pageSizes: {// 分页条数:数据较多设置为[25,50,100] type: Array, default () { return [10, 20, 30] } } }, data () { return { currentPage: 1, pageSize: 10 } }, computed: { pageTotal () { // 分页前总条数 return this.tableBegin.length } }, watch: { tableBegin: { immediate: true, handler (val) { // 加载数据 this.currentPage = 1 this.pageSize = this.pageSizes[0] || 10 const begin = (this.currentPage - 1) * this.pageSize const end = this.currentPage * this.pageSize const tableData = this.tableBegin.slice(begin, end) this.$emit('table-pagination-change', tableData, this.currentPage, this.pageSize) } } }, methods: { // 每页条数 handleSizeChange (val) { this.pageSize = val const begin = (this.currentPage - 1) * this.pageSize const end = this.currentPage * this.pageSize const tableData = this.tableBegin.slice(begin, end) this.$emit('table-pagination-change', tableData, this.currentPage, this.pageSize) }, // 第几页 handleCurrentChange (val) { this.currentPage = val const begin = (this.currentPage - 1) * this.pageSize const end = this.currentPage * this.pageSize const tableData = this.tableBegin.slice(begin, end) this.$emit('table-pagination-change', tableData, this.currentPage, this.pageSize) } } } </script>
使用示例:
import pagination from 'module-comp/tablePagination' <pagination :table-begin='tableBegin' @table-pagination-change='getTableData'/>
// 展示数据 getTableData (data, currentPage, pageSize) { this.tableData = data // 只需要赋值一次,其他情况均有传入的分页的数据回调处理 this.currentPage = currentPage this.pageSize = pageSize }
// 删除 deleteRow (index, row) { this.tableBegin.splice((this.currentPage - 1) * this.pageSize + index, 1) // this.tableData.splice(index, 1) }
说明:
加入分页后表格的展示数据均由分页控制,即通过传入的tableBegin监听改变