Detailed explanation of the use of select built-in components-JS Tutorial-php.cn

Detailed explanation of the use of select built-in components

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Release： 2018-04-28 15:45:20

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This time I will bring you a detailed explanation of the use of select built-in components. What are the precautions for using select built-in components? 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>

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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>

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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!