Details of using vue activated in child components

<template>
  <div class="tab-container">
    <h1 style="text-align: center">
      Apply for {{ form.category }}{{ form.companyType }} to settle in</h1>
    <div class="form-panel" style="margin-left: 20px;text-align: right;">
      <el-button type="info" @click="cancelSave">Cancel</el-button>
      <el-button type="warning" @click="transientSave">Save temporarily</el-button>
      <el-button type="danger" @click="persistSave">Save</el-button>
    </div>
    <el-tabs v-model="activeName" style="margin-top: 15px" type="border-card" :before-leave="collectPaneFormData" @tab-click="initPaneData">
      <el-tab-pane v-for="item in tabMapOptions" :key="item.key" :label="item.label" :name="item.key">
        <keep-alive>
          <tab-pane :is="item.key" :ref="item.key" :type="item.key" @create="showCreatedTimes" />
          <!--<component :is="item.key" :ref="item.key" :type="item.key" @create="showCreatedTimes" />-->
        </keep-alive>
      </el-tab-pane>
    </el-tabs>
  </div>
</template>

    // Cancel, close return cancelSubmit() {
      //Call the global mount method to close the current page this.$store.dispatch('tagsView/delView', this.$route)
      this.$router.go(-1)
    },