Vue element-ui父组件控制子组件的表单校验操作

<template>
<div>
	<child-form  ref="childRules" :addForm="addForm" >  </child-form>
	
	 <el-button @click="saveForm()" size='medium'>保 存</el-button>
	 
</div>
</template>
<script>
	import childForm from './childForm'
	export default {
		data(){
			return {
					addForm: { 
				   name:"",
			     desc: ""
			    },
				}
   		},
   		//组件引用
		  components: { 
		   childForm 
		  },
		  methods:{
				 //保存校验
			   saveForm() { 
			    let flag = this.$refs['childRules'].validateForm(); 
			    if(flag){
			     console.log(this.addForm);
			
			
			    }else{
			      this.$message.error('保全信息不完整，请继续填写完整');
			    } 
			   },
			}
	}
</script>
<style></style>

 <!-- -->
<template>
 <div class="form-content">
  <el-form :model="addForm" :inline="true"  :rules="formRules" ref="ruleForm"
   size='mini' label-width="120px" class="form-mini">
   <el-form-item label="名字" prop='name'>
   		<el-input v-model="addForm.name" ></el-input>
   </el-form-item> 
  </el-form>
 </div>
</template>

<script> 
 export default {
  name: '', 
  props: {
   addForm: { 
    type: Object,
    default: function () {
     return { 
     } 
    }
   } 
  },
  data() {
   //这里存放数据
   return { 
    formRules: {
     name: [{
      required: true,
      message: '请输入',
      trigger: 'blur'
     }] 
    }, 
   };
  },
  //监听属性 类似于data概念
  computed: {},
  //监控data中的数据变化
  watch: {},
  //过滤器
  filters: {},
  //方法集合
  methods: { 
   //子组件校验，传递到父组件
   validateForm () {
    let flag = null
    this.$refs['ruleForm'].validate(valid => {
     if (valid) {
      flag = true
     } else {
      flag = false
     }
    })
    return flag
   }
  } 
 }

</script>
<style lang='less'> 
</style>