Vue 动态增减输入示例

一、基本介绍

我们可以根据需要自定义输入数据条数，通过新增按钮新增块供用户输入。

当点击新增按钮会添加一组输入框，点击右侧删除标识进行移除。

二、完整代码

页面完成实现代码如下：

<template>
  <div>
    <a-row>
      <a-button @click="add">新增</a-button>
      <a-button @click="save">保存</a-button>
    </a-row>

    <a-form-model
        ref="ruleform"
        :model="form"
        :label-col="labelCol"
        :wrapper-col="wrapperCol"
      >
        <div
          v-for="(item, index) in form.contact"
          :key="index"
          :style="marginBottom: '15px'; marginLeft: '50px'"
        >
          <a-row>
            <a-form-model-item
              label="姓名"
              :prop="`contact.${index}.userName`"
              :label-col="labelCol"
              :wrapper-col="wrapperCol"
            >
              <a-input
                v-model="item.userName"
                placeholder="请输入姓名"
                :rules: [{ required: true, message: '姓名不能为空' }]
              />
            </a-form-model-item>
            <a-form-model-item
              label="联系电话"
              :prop="`contact.${index}.telephone`"
              :label-col="labelCol"
              :wrapper-col="wrapperCol"
            >
              <a-input
                v-model="item.telephone"
                :rules: [{ required: true, message: '电话不能为空' }]
                placeholder="请输入电话"
              />
            </a-form-model-item>
            <a-icon
              class="dynamic-delete-button"
              type="minus-circle-o"
              @click="() => remove(item)"
            />
          </a-row>
        </div>
      </a-form-model>
  </div>
</template>

<script>
export default {
  name: 'index',
  data () {
    return {
      form: {
        contact: []
      }
      labelCol: { span: 4 },
      wrapperCol: { span: 14 }
    }
  },
  methods: {
    save () {
      this.$refs.ruleform.validate(valid => { 
        if (valid) { 
          console.log(this.form) 
        } 
      })
    },
    add () {
      this.form.contact.push({
        uuid: this.guid(),
        userName: '',
        telephone: ''
      })
    },
    remove (item) {
      this.form.contact = this.form.contact.filter(op => (op.uuid !== item.uuid))
    },
    guid () {
      // 给每条新增数据生成唯一的uuid
      return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {
        var r = Math.random() * 16 | 0
        var v = c === 'x' ? r : (r & 0x3 | 0x8)
        return v.toString(16)
      })
    }
  }
}
</script>