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Detailed explanation of the case of using select component

php中世界最好的语言Original: 2018-06-08 17:27:211501browse

This time I will bring you a detailed explanation of the case of using the select component. What are the precautions for using the select component? The following is a practical case, 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(&#39;select2&#39;, { 
    props: [&#39;options&#39;, &#39;value&#39;], 
    template: &#39;<select><slot></slot></select>&#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> 
</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:[&#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> 
  </body>  
</html>

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

Detailed explanation of the case of using select component

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