1.第一步，先在父组件中引用，设置ref的值

<el-dialog :visible.sync="dialogEditVisible"append-to-body width="1000px" title="编辑":close-on-click-modal="false"><dialog-edit v-if="dialogEditVisible" ref="dialogEdit":visible.sync="dialogEditVisible" />
</el-dialog>

 2.引入和注册组件：

import DialogEdit from './edit'

export default {components: { Pagination,DialogAdd,DialogEdit,DialogView},

3.需要再data中设置对话框默认不打开：

 dialogEditVisible: false,

4.在父组件中mothod中实现调用对话框的方法：

handleEdit(scope) {this.dialogEditVisible = truethis.$nextTick(() => {//this.$refs.dialogEditthis.$refs.dialogEdit.getDetailed()})},

5.创建一个vue组件,名字为edit.vue，并且在method中添加getDetailed()   ，这个方法：

getDetailed() {
      const loading = this.$loading({
        lock: true,
        text: 'Loading',
        spinner: 'el-icon-loading',
        background: 'rgba(0, 0, 0, 0.7)'
      })
      getInfo({ code: this.proid }).then(response => {
        this.form = response.data.mdProjectInfo,
        loading.close()
      }).catch(function() {
        loading.close()
      })
    },

<template><div style="width:100%;height:auto; margin:0 auto;"><el-form :model="form" label-width="100px" label-position="left"><el-row :gutter="20"><el-col :span="16"><el-form-item><!-- <div slot="label">项目名称<font color="red">*</font></div>           <el-select v-model="form.dirId" clearable style="width:100%;" @change="selectGoodsByGroupId($event)"><el-option v-for="item in symbols" :key="item.id" :label="item.name" :value="item.id" /></el-select> --></el-form-item></el-col><el-col :span="8"><el-form-item><div slot="label">问题标题<font color="red">*</font></div><el-input v-model="form.name" placeholder="问题标题" /></el-form-item></el-col></el-row><el-row :gutter="20"><el-col :span="8"><el-form-item><div slot="label">问题类型<font color="red">*</font></div><el-input v-model="form.staffId" placeholder="问题类型" /></el-form-item></el-col>  <el-col :span="8"><el-form-item><div slot="label">优先级<font color="red">*</font></div><el-input v-model="form.staffId" placeholder="优先级" /></el-form-item></el-col><el-col :span="8"><el-form-item><div slot="label">问题状态<font color="red">*</font></div><el-input v-model="form.staffId" placeholder="问题状态" /></el-form-item></el-col></el-row><el-form-item label="内容"><el-input v-model="form.content" type="textarea" :autosize="{ minRows: 3, maxRows: 6}" /></el-form-item><el-form-item label="备注"><el-input v-model="form.message" type="textarea" :autosize="{ minRows: 3, maxRows: 6}" /></el-form-item></el-form><div style="text-align:center;"><el-button type="primary" @click="save()">保存</el-button><el-button type="danger" @click="closePage">取消</el-button></div></div>
</template>
<script>import { saveData,getInfo,edit} from '@/api/records'import { getAllList } from '@/api/maApplicationInfo'
import { Message } from 'element-ui'export default {inject: ['getList'],props: { // 第二种方式proid: {type: String,required: true}},data() {return {form: {},types: [],symbols: []}},created() {     this.getproject()},methods: {getDetailed() {const loading = this.$loading({lock: true,text: 'Loading',spinner: 'el-icon-loading',background: 'rgba(0, 0, 0, 0.7)'})getInfo({ code: this.proid }).then(response => {this.form = response.data.mdProjectInfo,loading.close()}).catch(function() {loading.close()})},getproject(){getAllList().then(response=> {this.symbols = response.data})},selectGoodsByGroupId(val) { // 根据设备组id获取相应的商品if (val != null && val !== '' && val !== undefined) {for (var i = 0; i < this.symbols.length; i++) {if (this.symbols[i].id === val) {this.form.userId = this.symbols[i].customerMid}}}},save(){this.form.startTime = this.form.itemTime[0]this.form.endTime = this.form.itemTime[1]const loading = this.$loading({lock: true,text: 'Loading',spinner: 'el-icon-loading',background: 'rgba(0, 0, 0, 0.7)'})edit(this.form).then(response => {Message({message: '编辑成功',type: 'success',duration: 5 * 1000})this.$emit('update:visible', false)loading.close()this.getList()}).catch(response => {loading.close()this.getList()})},closePage() {this.$emit('update:visible', false)}}
}
</script>