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Detailed explanation of the steps to use Vue’s select built-in component

php中世界最好的语言Original: 2018-05-25 14:13:484275browse

This time I will bring you a detailed explanation of the steps for using vue's select built-in component. What are the precautions for using vue's select built-in component? . Here are practical cases. Let's take a look.

1. Integrated third-party jQuery plug-in (select2)

<!DOCTYPE html> 
<html> 
<head> 
  <meta charset="UTF-8"> 
  <title></title> 
  <link rel="stylesheet" href="js/select2/select2.min.css" /> 
  <style> 
    html, body { 
 font: 13px/18px sans-serif; 
} 
select { 
 min-width: 300px; 
} 
  </style> 
</head> 
<body> 
<p id="el"> 
  <p>选中的: {{ selected }}</p> 
  <select2 :options="options" v-model="selected"></select2> 
</p> 
  <script src="js/jQuery-2.1.4.min.js"></script> 
  <script src="js/select2/select2.min.js"></script> 
  <script src="http://cdnjs.cloudflare.com/ajax/libs/vue/2.1.3/vue.js"></script>   
<script> 
  Vue.component('select2', { 
    props: ['options', 'value'], 
    template: '<select><slot></slot></select>', 
    mounted: function () { 
      var vm = this;// init select2 
      $(this.$el).select2({ data: this.options }).val(this.value).trigger('change').on('change', function () { 
        // emit event on change. 
        vm.$emit('input', this.value) 
      }) 
    }, 
    watch: { 
      value: function (value) { 
          // update value 
        $(this.$el).val(value).trigger('change') 
      }, 
      options: function (options) { 
         // update options 
        $(this.$el).empty().select2({ data: options }) 
      } 
    }, 
    destroyed: function () { 
      $(this.$el).off().select2('destroy') 
    } 
  }) 
var vm = new Vue({ 
  el: '#el', 
  data: { 
    selected: 2, 
    options: [ 
      { id: 0, text: '苹果' }, 
      { id: 1, text: '香蕉' }, 
      { id: 2, text: '香梨' }, 
      { id: 3, text: '榴莲' }, 
      { id: 4, text: '西瓜' } 
    ] 
  } 
}) 
</script> 
</body> 
</html>

2. Simple select

<!DOCTYPE html>  
<html lang="en">  
<head>  
<meta charset="utf-8">  
  <style>  
  *{ 
    padding: 0; 
    margin: 0; 
  } 
  ul,li { 
    list-style: none; 
  } 
  li { 
    line-height: 2em; 
  } 
  li:hover { 
    background-color: #f9f9f9; 
    border-radius:5px; 
    cursor: pointer; 
  } 
  input{ 
    cursor:pointer; 
    outline:none; 
  } 
  #app { 
    margin-top: 20px; 
  } 
  #app h2 { 
    text-align: center; 
  } 
  .wrap { 
    background-color: rgba(56, 170, 214, 0.45); 
    border-radius: 20px; 
    width: 300px; 
    margin: 40px; 
    padding: 20px; 
  } 
  input[type="button"] { 
    font-size:14px; 
    margin-left:2px; 
    padding:2px 5px; 
    background-color:rgb(228, 33, 33); 
    color:white; 
    border:1px solid rgb(228, 33, 33); 
    border-radius:5px; 
  } 
  .clearFix { 
    padding-left: 
  } 
  input.keyWord { 
    border: 1px solid #777777; 
    border-radius: 10px; 
    height: 30px; 
    width: 80%; 
    padding-left: 10px; 
    font-size: 16px; 
  } 
  ul.list { 
    margin: 20px 0; 
  } 
  ul.list li { 
    padding: 10px 0 0 10px; 
  } 
</style>  
</head>  
 <body>  
 <p id="app"> 
    <p style="float: left;"> 
      <h2>自定义下拉框</h2> 
      <custom-select btn-value="查询" v-bind:list="list1"></custom-select> 
    </p> 
    <p style="float: left;"> 
      <h2>自定义下拉框2</h2> 
      <custom-select btn-value="搜索" v-bind:list="list2"></custom-select> 
    </p> 
  </p> 
  <p id="app1"> 
    <custom-select></custom-select> 
  </p> 
    <script src="http://cdnjs.cloudflare.com/ajax/libs/vue/2.1.3/vue.js"></script>  
 <script> 
    Vue.component("custom-select",{ 
      data(){ 
        return { 
          selectShow:false, 
          val:"" 
        } 
      }, 
      props:["btnValue","list"], 
      template:`<section class="wrap"> 
            <p class="searchIpt clearFix"> 
              <p class="clearFix"> 
                <input type="text" class="keyWord" :value="val" @click="selectShow = !selectShow" /> 
                <input type="button" :value="btnValue" /> 
                <span></span> 
              </p> 
              <custom-list  
                v-show="selectShow"  
                :list="list"  
                v-on:receive="changeValueHandle" 
              > 
              </custom-list> 
            </p> 
           </section>`, 
      methods:{ 
        changeValueHandle(value){ 
          this.val = value; 
        } 
      } 
    }); 
    Vue.component("custom-list",{ 
      props:["list"], 
      template:`<ul class="list"> 
              <li v-for="item in list" @click="selectValueHandle(item)">{{item}} 
              </li> 
           </ul>`, 
      methods:{ 
        selectValueHandle:function(item){ 
          this.$emit("receive",item) 
        } 
      } 
    }) 
    new Vue({ 
      el:"#app", 
      data:{ 
        list1:['北京','上海','广州','杭州'], 
        list2:['17-01-11','17-02-11','17-03-11','17-04-11'], 
      } 
    }) 
  </script> 
  </body>  
</html>

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

Detailed explanation of the steps to use Vue’s select built-in component

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