Detailed explanation of the use of select built-in components

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)

##

nbsp;html> 
 
 
  <meta> 
  <title></title> 
  <link> 
  <style> 
    html, body { 
 font: 13px/18px sans-serif; 
} 
select { 
 min-width: 300px; 
} 
  </style> 
 
 
<p> 
  </p><p>选中的: {{ selected }}</p> 
  <select2></select2> 
 
  <script></script> 
  <script></script> 
  <script></script>   
<script> 
  Vue.component(&#39;select2&#39;, { 
    props: [&#39;options&#39;, &#39;value&#39;], 
    template: &#39;<select><slot>&#39;, 
    mounted: function () { 
      var vm = this;// init select2 
      $(this.$el).select2({ data: this.options }).val(this.value).trigger(&#39;change&#39;).on(&#39;change&#39;, function () { 
        // emit event on change. 
        vm.$emit(&#39;input&#39;, this.value) 
      }) 
    }, 
    watch: { 
      value: function (value) { 
          // update value 
        $(this.$el).val(value).trigger(&#39;change&#39;) 
      }, 
      options: function (options) { 
         // update options 
        $(this.$el).empty().select2({ data: options }) 
      } 
    }, 
    destroyed: function () { 
      $(this.$el).off().select2(&#39;destroy&#39;) 
    } 
  }) 
var vm = new Vue({ 
  el: &#39;#el&#39;, 
  data: { 
    selected: 2, 
    options: [ 
      { id: 0, text: &#39;苹果&#39; }, 
      { id: 1, text: &#39;香蕉&#39; }, 
      { id: 2, text: &#39;香梨&#39; }, 
      { id: 3, text: &#39;榴莲&#39; }, 
      { id: 4, text: &#39;西瓜&#39; } 
    ] 
  } 
}) 
</script> 
 

2. Simple select

nbsp;html>  
  
  
<meta>  
  <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>  
  
   
 <p> 
    </p><p> 
      </p><h2 id="自定义下拉框">自定义下拉框</h2> 
      <custom-select></custom-select> 
     
    <p> 
      </p><h2 id="自定义下拉框">自定义下拉框2</h2> 
      <custom-select></custom-select> 
     
   
  <p> 
    <custom-select></custom-select> 
  </p> 
    <script></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> 
               
              <custom-list  
                v-show="selectShow"  
                :list="list"  
                v-on:receive="changeValueHandle" 
              > 
               
             
           `, 
      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}} 
               
           `, 
      methods:{ 
        selectValueHandle:function(item){ 
          this.$emit("receive",item) 
        } 
      } 
    }) 
    new Vue({ 
      el:"#app", 
      data:{ 
        list1:[&#39;北京&#39;,&#39;上海&#39;,&#39;广州&#39;,&#39;杭州&#39;], 
        list2:[&#39;17-01-11&#39;,&#39;17-02-11&#39;,&#39;17-03-11&#39;,&#39;17-04-11&#39;], 
      } 
    }) 
  </script> 
    

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!

Recommended reading:

Detailed explanation of the steps to deduplicate JSON arrays using JS

How to deduplicate data when merging multiple arrays

The above is the detailed content of Detailed explanation of the use of select built-in components. For more information, please follow other related articles on the PHP Chinese website!