How to use the on-change attribute in IView-JS Tutorial-php.cn

How to use the on-change attribute in IView

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Release： 2018-04-11 14:03:42

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This time I will bring you the on-changepropertyhow to use it in IView, what are the notesfor using the on-change property in IView, the following is a practical case, let’s take a look take a look.

Problem generated

I just studied the awesome framework of vue with my colleagues. It implements small functions of three-level linkage at the provincial and municipal levels. Part of the code is as follows:

<Form-item label="所在地区" >
   <Row >
   <Col span="12">
   <select v-model="f.p" @change="selpro" placeholder="sheng">
    <option :value="i" v-for="(v,i) in pro">{{v.name}}</option>
   </select>
   </Col>
   <Col span="12">
   <select v-model="f.c" @change="selcity" placeholder="shi">
    <option :value="i" v-for="(v,i) in city">{{v.name}}</option>
   </select>
   </Col>
   <Col span="12">
   <select v-model="f.cc" v-show="county.length>0" @change="result" placeholder="xian"> 
    <option :value="i" v-for="(v,i) in county">{{v.name}}</option>
   </select>
   </Col>
   </Row>
  </Form-item>

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After the front-end interface is written in vue, when the front-end and back-end codes are merged into the same project, various problems arise due to the inconsistency between js, htmlcode specifications and vue, such asonchange = "", @change="" does not work in iview. Finally, through Google, a powerful search index engine, the problem was solved,

Solve the problem

The correct writing method in iview should be: @on-change

<Form-item label="所在地区">
    <Row>
     <i-col span="12">
      <i-select v-model="f.p" @on-change="selpro" placeholder="sheng">
       <i-option :value="i" v-for="(v,i) in pro" :key="v.id">{{v.name}}</i-option>
      </i-select>
     </i-col>
     <i-col span="12">
      <i-select v-model="f.c" @on-change="selcity" placeholder="shi">
       <i-option :value="i" v-for="(v,i) in city" :key="v.id">{{v.name}}</i-option>
      </i-select>
     </i-col>
     <i-col span="12">
      <i-select v-model="f.cc" v-show="county.length>0" onchange="result" placeholder="xian">
       <i-option :value="i" v-for="(v,i) in county" :key="v.id">{{v.name}}</i-option>
      </i-select>
     </i-col>
    </Row>
   </Form-item>

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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!