search
HomeWeb Front-endJS TutorialHow to fix table header and first column in Vue
How to fix table header and first column in VueJun 08, 2018 pm 01:48 PM
vuefixed header

This article mainly introduces Vue's various methods to implement the sample code of fixing the table header and the first column. Now I share it with you and give it as a reference.

Sometimes the table is too large and it is inconvenient to view the information when scrolling. It is necessary to fix the global header and first column of the table.

The effect is:

1. Create multiple tables for coverage

Idea: When the page scrolls to the critical value, a fixed header and first column will appear

Create one first Active table

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title></title>
    <style type="text/css">
      th,
      td {
        min-width: 200px;
        height: 50px;
      }
      #sTable {
        margin-top: 300px
      }
      [v-cloak]{
        display: none;
      }
    </style>
  </head>
  <body v-cloak>
    <!--活动的表格-->
    <table id="sTable" border="1" cellspacing="0">
      <thead>
        <tr>
          <th v-for="item in th">{{item.key}}</th>
        </tr>
      </thead>
      <tbody>
        <tr v-for="item in tl">
          <td v-for="list in item">{{list.key}}</td>
        </tr>
      </tbody>
    </table>
    <script src="vue.js"></script>
    <script src="jquery.js"></script>
    <script>
      var vm = new Vue({
        el: "body",
        data: function() {
          return {
            th: [],
            tl: [],
            temp: [],
          }
        },
        methods: {
          //生成表格
          CTable: function() {
            for(var i = 0; i < 10; i++) {
              this.th.push({
                key: "head" + i
              })
            }
            for(var i = 0; i < 100; i++) {
              for(var j = 0; j < 10; j++) {
                this.temp.push({
                  key: j + "body" + i
                })
              }
              this.tl.push(this.temp)
              this.temp = []
            }
          },
        },
        ready: function() {
          this.CTable();
        },
      })
    </script>
  </body>
</html>

Add a fixed header:

#fHeader {
  background: lightblue;
  position: fixed;
  top: 0;
}
<!--固定表头-->
<table border="1" id="fHeader" cellspacing="0" v-show="fixedHeader"> 
  <thead>
    <tr >
      <th v-for="item in th">{{item.key}}</th>
    </tr>
  </thead>
</table>

The fixed header appears when the monitoring table position reaches the top of the window

//监控表头位置
headerMonitor:function(){
  var self=this
  var hHeight=$("#sTable").offset().top;
  $(document).scroll(function(){
    //当滚动条达到偏移值的时候,出现固定表头
    if($(this).scrollTop()>hHeight){
      self.fixedHeader=true
    }else{
      self.fixedHeader=false
    }
  })
}

Of course you need to call this method

ready: function() {
  this.CTable();
  this.headerMonitor()
},

Then add a fixed first column and a fixed A1 cell

#fHeader {
  background: lightblue;
    position: fixed;
    top: 0;
    z-index: 1;
  }
  .fixedA1{
    background: lightblue;
    position: fixed;
    top: 0;
    left: 0;
    z-index:2;
  }
<!--固定A1-->
<table border="1" cellspacing="0" class="fixedA1" v-show="fixedA1">
  <thead>
    <tr>
      <th v-for="item in th" v-if="$index==0">{{item.key}}</th>
    </tr>
  </thead>
</table>
<!--固定首列-->
<table border="1" cellspacing="0" class="fixedCol" v-show="fixedCol">
  <thead>
    <tr>
      <th v-for="item in th" v-if="$index==0">{{item.key}}</th>
    </tr>
  </thead>
  <tbody>
    <tr v-for="item in tl">
      <td v-for="list in item" v-if="$index==0">{{list.key}}</td>
    </tr>
  </tbody>
</table >

Similarly monitor the position of the table

//监控表头、首列位置
monitor:function(){
  var self=this
  $(document).scroll(function(){
    self.setPosition()
    //当滚动条达到左偏移值的时候,出现固定列头
    if($(this).scrollLeft()>self.hLeft){
      self.fixedCol=true
    }else{
      self.fixedCol=false
    }
    //当滚动条达到上偏移值的时候,出现固定表头
    if($(this).scrollTop()>self.hHeight){
      self.fixedHeader=true
    }else{
      self.fixedHeader=false
    }
    //当表格移到左上角时,出现固定的A1表格
    if($(this).scrollLeft()>self.hLeft&&$(this).scrollTop()>self.hHeight){
      self.fixedA1=true
    }else{
      self.fixedA1=false
    }
  })
},

Because the movement of the table will affect the positioning of the header, you need to The offset value of the current table is assigned to the fixed header. First column

setPosition:function(){
  $("#fHeader").css("left",this.hLeft-$(document).scrollLeft())
  $(".fixedCol").css("top",this.hHeight-$(document).scrollTop())
}

Jq monitors and scrolls to create multiple tables to achieve fixed header and first column.html

2. Control style to achieve fixed header and first column

Idea: When the table reaches the critical value, change the header and the style of the first column

First implement the fixed header

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title></title>
    <style type="text/css">
      th,
      td {
        min-width: 200px;
        height: 50px;
      }
      table {
        margin: 300px
      }
      .fHeader {
        background: lightblue;
        position: fixed;
        top: 0;
      }
      [v-cloak]{
        display: none;
      }
    </style>
  </head>
  <body v-cloak>
    <table border="1" cellspacing="0">
      <thead>
        <tr :class="{fHeader:fixedHeader}">
          <th v-for="item in th">{{item.key}}</th>
        </tr>
      </thead>
      <tbody>
        <tr v-for="item in tl">
          <td v-for="list in item">{{list.key}}</td>
        </tr>
      </tbody>
    </table>
    <script src="vue.js"></script>
    <script src="jquery.js"></script>
    <script>
      var vm = new Vue({
        el: "body",
        data: function() {
          return {
            th: [],
            tl: [],
            temp: [],
            fixedHeader: false,
          }
        },
        methods: {
          //生成表格,代码相同,省略
          CTable: function() {},
          //监控表头位置
          headerMonitor:function(){
            var self=this
            var hHeight=$("table").offset().top;
            $(document).scroll(function(){
              //当滚动条达到偏移值的时候,出现固定表头
              if($(this).scrollTop()>hHeight){
                self.fixedHeader=true
              }else{
                self.fixedHeader=false
              }
            })
          }
        },
        ready: function() {
          this.CTable();
          this.headerMonitor()
        },
      })
    </script>
  </body>
</html>

Add a fixed first column

.fixedCol>:first-child{
  background: lightblue;
  position: fixed;
  z-index: 1;
  border:1px solid grey;
  left: 0;
  line-height: 50px;
}

Monitoring Table position

//监控表头,首列位置
monitor:function(){
  this.setPosition()
  var self=this
  $(document).scroll(function(){
    self.setPosition();
    //当滚动条达到偏移值的时候,出现固定表头
    if($(this).scrollTop()>self.hHeight){
      self.fixedHeader=true;
    }else{
      self.fixedHeader=false
    }
    //当滚动条达到左偏移值的时候,出现固定列头
    if($(this).scrollLeft()>self.hLeft){
      self.fixedCol=true
    }else{
      self.fixedCol=false
    }
    //当表格移到左上角时,出现固定的A1表格
    if($(this).scrollLeft()>self.hLeft&&$(this).scrollTop()>self.hHeight){
      self.fixedA1=true
    }else{
      self.fixedA1=false
    }
  })
},

Set offset value

//使固定表头与列头的偏差与当前表格的偏移值相等
setPosition:function(){
  $(".fixedHeader").css("left",this.hLeft-$(document).scrollLeft())
  for(var i=0,len=this.tl.length+1;i<len;i++){
    //因为设置了“border-collapse:collapse”,所以要加“54-1”
    $(".fixedCol>:first-child").eq(i).css("top",this.hHeight-$(document).scrollTop()+53*i)
  }
}

Because when the table header becomes fixed positioning, it will break away from the document flow and the second row of the table will be hidden, so a second column is needed. Expansion of width and height

/*因为fixed定位不占位,当固定表头出现时,有一行会补到表头位置,即有一行跳空,将tbody的第一行行高加倍*/
.fixedHeaderGap:first-child>td{
    padding-top:54px;
  }
/*因为fixed定位不占位,当固定列头出现时,有一列会补到列头位置,即有一列跳空,将tbody的第二列p设置padding*/
.fixedCol>:nth-child(2){
  padding-left: 205px;
}

When the browser opens the page again, it is necessary to monitor whether the table still reaches the critical condition of fixed header

watch:{
  //页面初始加载时,使固定表头与列头的偏差与当前表格的偏移值相等
  "fixedHeader":function(){
    this.setPosition()
  },
  "fixedCol":function(){
    this.setPosition()
  },
},

Change the style to achieve the first column of fixed header.html

3. Vue custom instructions to implement rolling monitoring

When using vue, such a huge library as Jq is rarely used, and vue officials do not recommend it. Manipulate Dom elements, so you can customize instructions to implement fixed headers and first columns. This article uses Vue.js v1.0.26, but the idea of ​​​​V2.0 is actually the same.

Go directly to the code

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title></title>
    <style type="text/css">
      th,
      td {
        min-width: 200px;
        height: 50px;
      }
      #sTable {
        margin: 300px
      }
      .fixedCol{
        position: fixed;
        left: 0;
        background: lightblue;
        z-index: 1;
      }
      #fHeader {
        background: lightblue;
        position: fixed;
        top: 0;
        z-index: 1;
      }
      .fixedA1{
        background: lightblue;
        position: fixed;
        top: 0;
        left: 0;
        z-index:2;
      }
      [v-cloak]{
        display: none;
      }
    </style>
  </head>
  <body v-cloak>
    <!--固定A1-->
    <table border="1" cellspacing="0" class="fixedA1" v-show="fixedA1">
      <thead>
        <tr>
          <th v-for="item in th" v-if="$index==0">{{item.key}}</th>
        </tr>
      </thead>
    </table>
    <!--固定列头-->
    <table border="1" cellspacing="0" class="fixedCol" v-show="fixedCol">
      <thead>
        <tr>
          <th v-for="item in th" v-if="$index==0">{{item.key}}</th>
        </tr>
      </thead>
      <tbody>
        <tr v-for="item in tl">
          <td v-for="list in item" v-if="$index==0">{{list.key}}</td>
        </tr>
      </tbody>
    </table >
    <!--固定表头-->
    <table border="1" id="fHeader" cellspacing="0" v-show="fixedHeader"> 
      <thead>
        <tr >
          <th v-for="item in th">{{item.key}}</th>
        </tr>
      </thead>
    </table>
    <!--活动的表格,绑定自定义指令-->
    <table id="sTable" border="1" cellspacing="0" v-scroll>
      <thead>
        <tr>
          <th v-for="item in th">{{item.key}}</th>
        </tr>
      </thead>
      <tbody>
        <tr v-for="item in tl">
          <td v-for="list in item">{{list.key}}</td>
        </tr>
      </tbody>
    </table>
    <script src="vue.js"></script>
    <script>
      var vm = new Vue({
        el: "body",
        data: function() {
          return {
            th: [],
            tl: [],
            temp: [],
            fixedCol: false,
            fixedHeader:false,
            fixedA1:false,
            hLeft:0,
            hHeight:0,
          }
        },
        directives:{
          scroll:{
            bind:function(){
              //触发滚动监听事件
              window.addEventListener(&#39;scroll&#39;,function(){
                this.vm.monitor()
              })
            }
          }
        },
        methods: {
          //生成表格
          CTable: function() {},
          //监控表头、列头位置
          monitor:function(){
            this.setPosition();
            //当滚动条达到左偏移值的时候,出现固定列头
            if(document.body.scrollLeft>this.hLeft){
              this.fixedCol=true;
            }else{
              this.fixedCol=false;
            }
            //当滚动条达到上偏移值的时候,出现固定表头
            if(document.body.scrollTop>this.hHeight){
              this.fixedHeader=true;
            }else{
              this.fixedHeader=false;
            }
            //当表格移到左上角时,出现固定的A1表格
            if(document.body.scrollLeft>this.hLeft&&document.body.scrollTop>this.hHeight){
              this.fixedA1=true;
            }else{
              this.fixedA1=false;
            }
          },
          //使固定表头与列头的偏差与当前表格的偏移值相等
          setPosition:function(){
            document.getElementById("fHeader").style.left=this.hLeft-document.body.scrollLeft+"px";
            document.getElementsByClassName("fixedCol")[0].style.top=this.hHeight-document.body.scrollTop+"px";
          },
        },
        ready: function() {
          this.CTable();
          this.hLeft=document.getElementById("sTable").offsetLeft;
          this.hHeight=document.getElementById("sTable").offsetTop
          this.monitor()
        },
      })
    </script>
  </body>
</html>

If you want to create a custom callback event, you can use eval(),

<table id="sTable" border="1" cellspacing="0" v-scroll="monitor">
directives:{
  scroll:{
    bind:function(){
      var self=this;
      //触发滚动监听事件
      window.addEventListener(&#39;scroll&#39;,function(){
        //触发滚动回调事件
        eval("self.vm."+self.expression)()
      })
    }
  }
},

Custom callback instructions to fix the table column header.html

The above is what I compiled for everyone. I hope it will be helpful to everyone in the future.

Related articles:

How to implement table merging cells in Bootstrap

How to obtain the first number in the select drop-down box in JavaScript A value

How to get and display the password in real time in AngularJS

The above is the detailed content of How to fix table header and first column in Vue. For more information, please follow other related articles on the PHP Chinese website!

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Vue常见面试题汇总(附答案解析)Vue常见面试题汇总(附答案解析)Apr 08, 2021 pm 07:54 PM

本篇文章给大家分享一些Vue面试题(附答案解析)。有一定的参考价值,有需要的朋友可以参考一下,希望对大家有所帮助。

5 款适合国内使用的 Vue 移动端 UI 组件库5 款适合国内使用的 Vue 移动端 UI 组件库May 05, 2022 pm 09:11 PM

本篇文章给大家分享5 款适合国内使用的 Vue 移动端 UI 组件库,希望对大家有所帮助!

vue中props可以传递函数吗vue中props可以传递函数吗Jun 16, 2022 am 10:39 AM

vue中props可以传递函数;vue中可以将字符串、数组、数字和对象作为props传递,props主要用于组件的传值,目的为了接收外面传过来的数据,语法为“export default {methods: {myFunction() {// ...}}};”。

手把手带你利用vue3.x绘制流程图手把手带你利用vue3.x绘制流程图Jun 08, 2022 am 11:57 AM

利用vue3.x怎么绘制流程图?下面本篇文章给大家分享基于 vue3.x 的流程图绘制方法,希望对大家有所帮助!

如何覆盖组件库样式?React和Vue项目的解决方法浅析如何覆盖组件库样式?React和Vue项目的解决方法浅析May 16, 2022 am 11:15 AM

如何覆盖组件库样式?下面本篇文章给大家介绍一下React和Vue项目中优雅地覆盖组件库样式的方法,希望对大家有所帮助!

聊聊vue指令中的修饰符,常用事件修饰符总结聊聊vue指令中的修饰符,常用事件修饰符总结May 09, 2022 am 11:07 AM

本篇文章带大家聊聊vue指令中的修饰符,对比一下vue中的指令修饰符和dom事件中的event对象,介绍一下常用的事件修饰符,希望对大家有所帮助!

通过9个Vue3 组件库,看看聊前端的流行趋势!通过9个Vue3 组件库,看看聊前端的流行趋势!May 07, 2022 am 11:31 AM

本篇文章给大家分享9个开源的 Vue3 组件库,通过它们聊聊发现的前端的流行趋势,希望对大家有所帮助!

react与vue的虚拟dom有什么区别react与vue的虚拟dom有什么区别Apr 22, 2022 am 11:11 AM

react与vue的虚拟dom没有区别;react和vue的虚拟dom都是用js对象来模拟真实DOM,用虚拟DOM的diff来最小化更新真实DOM,可以减小不必要的性能损耗,按颗粒度分为不同的类型比较同层级dom节点,进行增、删、移的操作。

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
3 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

ZendStudio 13.5.1 Mac

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment

SAP NetWeaver Server Adapter for Eclipse

SAP NetWeaver Server Adapter for Eclipse

Integrate Eclipse with SAP NetWeaver application server.

EditPlus Chinese cracked version

EditPlus Chinese cracked version

Small size, syntax highlighting, does not support code prompt function

DVWA

DVWA

Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

Atom editor mac version download

Atom editor mac version download

The most popular open source editor