Vuetify焦点输入在v-for内

时间:2017-09-26 14:13:47

标签: vue.js vuetify.js

我试图专注于下一个动态插入的输入,我可以关注foobar_x而不是v-for循环中的那些。任何帮助将不胜感激。

Codepen:https://codepen.io/Moloth/pen/qPRGvz



new Vue({
  el: '#app',
  data: {
    test: "xxxxxx",
    phones: [
      {number: "0000000"},
      {number: "1111111"},    
    ],
  },
  methods: {
    focusPhones: function() {
      this.$refs.foobar_1.focus()
    },
    focusTest: function() {
      this.$refs.foobar_x.focus()
    }
  }
})

<script src="https://unpkg.com/vue/dist/vue.js"></script>
<script src="https://unpkg.com/vuetify/dist/vuetify.js"></script>
<div id="app">
  <v-text-field label="foobar_x" ref="foobar_x" v-model="test"></v-text-field>
  <div v-for="(value, i) in phones" :key="i">
    <v-text-field :label="'foobar_'+i" :ref="'foobar_'+i" v-model="phones[i].number"></v-text-field>
    
  </div>
  <v-btn @click.native="focusPhones()">Focus foobar_1</v-btn>
  <v-btn @click.native="focusTest()">Focus foobar_x</v-btn>
</div>
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1 个答案:

答案 0 :(得分:4)

当您向ref循环中的元素添加v-for值时,将在this.$refs['name-of-your-value']中生成一个数组,并且该元素或组件的引用将被推送到该数组

因此,由于您是通过:ref="'foobar_'+i"动态添加引用,因此对这些组件的引用将位于this.$refs.foobar_0[0]this.$refs.foobar_1[0]。但是,如果您只是指定相同的ref值(例如foobar_y),则Vue会为您执行索引编制工作,您的组件可以在this.$refs.foobar_y[0]this.$refs.foobar_y[1]访问。

这是一个有效的例子:

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new Vue({
  el: '#app',
  data: {
    test: "xxxxxx",
    phones: [
      {number: "0000000"},
      {number: "1111111"},    
    ],
  },
  methods: {
    focusPhones: function() {
      this.$refs.foobar_y[1].focus()
    },
    focusTest: function() {
      this.$refs.foobar_x.focus()
    }
  }
})
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<script src="https://unpkg.com/vue/dist/vue.js"></script>
<script src="https://unpkg.com/vuetify/dist/vuetify.js"></script>
<div id="app">
  <v-text-field label="foobar_x" ref="foobar_x" v-model="test"></v-text-field>
  <div v-for="(value, i) in phones" :key="i">
    <v-text-field :label="'foobar_'+i" ref="foobar_y" v-model="phones[i].number"></v-text-field>
    
  </div>
  <v-btn @click.native="focusPhones()">Focus foobar_y[1]</v-btn>
  <v-btn @click.native="focusTest()">Focus foobar_x</v-btn>
</div>
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