vue3项目,页面上的表格高度需要根据页面高度变化进行动态计算赋值,实现如下。
如下图表格,其父元素(红框元素)高度不是具体值,表格需要设置一个最大高度以便超出后显示滚动条,同时确保页面高度变化时(浏览器窗口大小改变)表格高度动态计算。
代码实现:
javascript
<template>
<div class="table-wrap">
<el-table ref="tableRef" :data="tableData" :max-height="tableHeight" style="width: 80%">
<el-table-column prop="id" label="ID" width="180" />
<el-table-column prop="date" label="Date" width="180" />
<el-table-column prop="name" label="Name" width="180" />
<el-table-column prop="address" width="180" label="Address" />
<el-table-column prop="address" width="180" label="Address" />
<el-table-column prop="address" label="Address" />
</el-table>
</div>
</template>
<script setup>
import {reactive,ref,onMounted,onUnmounted,nextTick} from 'vue'
let tableData = reactive([])
let tableRef = ref(null)
const tableHeight = ref()
// 生成表格数据
let tableDataList = []
for(let i=0;i<50;i++){
tableDataList.push({
id: i + 1,
date: '2024年3月19日',
name: 'sy',
address: 'address'
})
}
tableData = tableDataList
const computedHeight = () => {
if (tableHeight.value) {
tableHeight.value = window.innerHeight - tableRef.value.$el.offsetTop - 180
}
}
onMounted(() => {
nextTick(() => {
tableHeight.value = window.innerHeight - tableRef.value.$el.offsetTop - 180
window.addEventListener('resize', computedHeight)
})
})
onUnmounted(() => {
window.removeEventListener('resize', computedHeight)
})
</script>
<style>
.table-wrap{
height: calc(100vh - 160px);
border: 1px solid red;
overflow: hidden;
}
</style>
关于 window.innerHeight:
关于offsetTop: