小编主要做的都是后台管理系统，采用布局多为头部、左侧菜单栏，右侧内容，头部和菜单栏固定位置，内容部分如果很长就会出现滚动条（iview和element都提供了布局容器），后台管理系统多为表格的增删改查，so，要需要表格自动高度，提供两种方式（纯代码分享）：

1）施加在表格自身

1.普通vue项目：
根目录新建directive里面三个文件(都有所删减)：

directive里面三个文件

autoHeightParams.js

/** 
 * @functionName: js
 *@param: allScreen--全屏
 *@param: table    --右侧全屏表
 *@param: table_S_OneLine --右侧表上有单独一行搜索
 *@param: table_S_TwoLine --右侧表上有单独两行行搜索
 *@param: table_S_OneLine_B_OneLine --右侧表上有一行行搜索+一行按钮
 *@param: table_S_TwoLine_B_OneLine --右侧表上有两行行搜索+一行按钮
 *@description:
 *@author: 王建锋
 *@date: 
 *@version: V1.0.0
*/
export default {
  //全屏
  allScreen: {
    allHeight: 0,
    precent: 100,
    diffHeight: 126,
    overflowX: 'hidden'
  },
  //右侧全屏表
  table: {
    allHeight: 0,
    precent: 100,
    diffHeight: 380
  },
  //右侧表上有单独一行搜索
  table_S_OneLine: {
    allHeight: 0,
    precent: 100,
    diffHeight: 295
  },
  //右侧表上有单独两行行搜索
  table_S_TwoLine: {
    allHeight: 0,
    precent: 100,
    diffHeight: 345
  },
  //右侧表上有一行行搜索+一行按钮
  table_S_OneLine_B_OneLine: {
    allHeight: 0,
    precent: 100,
    diffHeight: 360
  },
  //右侧表上有两行行搜索+一行按钮
  table_S_TwoLine_B_OneLine: {
    allHeight: 0,
    precent: 100,
    diffHeight: 410
  },
  table_Home_Small: {
    allHeight: 0,
    precent: 100,
    diffHeight: 810
  },
  table_Model: {
    allHeight: 0,
    precent: 100,
    diffHeight: 700
  }
}

directives.js

const directives = {
  autoHeight: {
    inserted: (el, binding) => {
      el.opt = {
        ...{
          allHeight: 0,
          precent: 100,
          diffHeight: 100
        },
        dataName: binding.arg,
        ...binding.value,
        ...binding.modifiers
      }
      el.autoHeightHandle = function (el, binding) {
        let allH = el.opt.allHeight === 0 ? window.innerHeight : el.opt.allHeight
        let elH = (allH * el.opt.precent / 100) - el.opt.diffHeight
        if (!el.opt.vm && el.opt.dataName) {
          console.error('autoHeight:定义了dataName则必须同时定义vm参数')
          return
        }
        if (el.opt.vm && el.opt.dataName) el.opt.vm[el.opt.dataName] = elH
        if (el.opt.style === true) el.style = `height:${elH}px;overflow-y:auto;`
      }.bind(null, el, binding)
      window.addEventListener('resize', el.autoHeightHandle)
      el.autoHeightHandle()
    },
    update: (el, binding) => {
      el.opt = {
        ...{
          allHeight: 0,
          precent: 100,
          diffHeight: 100
        },
        dataName: binding.arg,
        ...binding.value,
        ...binding.modifiers
      }
      el.autoHeightHandle()
    },
    unbind: (el) => {
      if (el && el.autoHeightHandle) window.removeEventListener('resize', el.autoHeightHandle)
    }
  }
}

export default directives

index.js

import directive from './directives'

const importDirective = Vue => {
   * 自动高度 v-auto-height="options"
   */
  Vue.directive('auto-height', directive.autoHeight)
}

export default importDirective

在main.js中

import importDirective from '@/directive'
/**
 * 注册指令
 */
importDirective(Vue)

2.使用nuxt的
把index.js改为

import directive from './directives'
export default directive

在plugins文件夹下新建auto-height.js

import Vue from 'vue'
import directives from '@/components/public/parts/directives'

Vue.directive('auto-height', directives.autoHeight)

然后就是使用在你写的表格里标签里（不管element、iview或者自己在他俩基础上封装的也好）直接加

 v-auto-height:tableHeight="{vm:this, diffHeight:ahTable.diffHeight}"
 :height="tableHeight"

试例为element表格再次封装的表格插件

试例为iview表格再次封装的表格插件

然后引入

import autoHeightParams from '@/components/public/parts/directives/autoHeightParams'

在data中写入

      tableHeight: null,
      ahTable: autoHeightParams.table_S_OneLine_B_OneLine//这里写autoHeightParams.js里面预设好的高度变量

就OK了

2)

友情链接