vue3ElementPlus Tabs 标签页

1、el-tabs标签页官方提供了三种展示类型

type类型不设置时为默认样式，type类型设置为card时为不带边框的卡片样式，type类型为border-card时为带边框的卡片样式，

<template>
  <el-tabs
    v-model="activeName"
    type="card"
    @tab-click="handleClick"
    @change="changeTab"
  >
    <el-tab-pane label="User" name="first">User</el-tab-pane>
    <el-tab-pane label="Config" name="second">Config</el-tab-pane>
    <el-tab-pane label="Role" name="third">Role</el-tab-pane>
    <el-tab-pane label="Task" name="fourth">Task</el-tab-pane>
  </el-tabs>
</template>

2、标签位置的设置

可以通过 tab-position 设置标签的位置，标签一共有四个方向的设置 tabPosition="left|right|top|bottom"，标签页自动填充到所在容器的四个位置

<template>
  <el-tabs
    v-model="activeName"
    type="card"
    tab-position="left"
    @tab-click="handleClick"
    @change="changeTab"
  >
    <el-tab-pane label="User" name="first">User</el-tab-pane>
    <el-tab-pane label="Config" name="second">Config</el-tab-pane>
    <el-tab-pane label="Role" name="third">Role</el-tab-pane>
    <el-tab-pane label="Task" name="fourth">Task</el-tab-pane>
  </el-tabs>
</template>

3、自定义标签页的内容​

（1）可以通过具名插槽来实现自定义标签页的内容

<template>
  <el-tabs type="border-card" class="demo-tabs">
    <el-tab-pane>
      <template #label>
        <span class="custom-tabs-label">
          <el-icon><calendar /></el-icon>
          <span>Route</span>
        </span>
      </template>
      Route
    </el-tab-pane>
    <el-tab-pane label="Config">Config</el-tab-pane>
    <el-tab-pane label="Role">Role</el-tab-pane>
    <el-tab-pane label="Task">Task</el-tab-pane>
  </el-tabs>
</template>

<script lang="ts" setup>
import { Calendar } from '@element-plus/icons-vue'
</script>

<style>
.demo-tabs > .el-tabs__content {
  padding: 32px;
  color: #6b778c;
  font-size: 32px;
  font-weight: 600;
}
.demo-tabs .custom-tabs-label .el-icon {
  vertical-align: middle;
}
.demo-tabs .custom-tabs-label span {
  vertical-align: middle;
  margin-left: 4px;
}
</style>

（2）或者是标签页里面填充其他控件，比如form表单等

<template>
<div class="busOrderInfo-container">
	<el-dialog v-model="isShowDialog">
    <el-tabs v-model="state.selectedTabName" class="button-tab" @tab-change="tabHandleChange">
    <el-tab-pane label="订单信息">
        <el-form  :model="ruleForm" ref="ruleFormRef" size="default" label-position="left" label-width="120px">
        </el-form>
	</el-tab-pane>
    <el-tab-pane label="空运订舱">
	</el-tab-pane>
    <el-tab-pane label="空运订舱货物信息">
	</el-tab-pane>
    <el-tab-pane label="报关信息">
	</el-tab-pane>
    <el-tab-pane label="上传附件">
	</el-tab-pane>
    </el-tabs>
	</el-dialog>
</div>
</template>

4、动态增减标签页​

增减标签页按钮只能在选项卡样式的标签页下使用

<template>
  <el-tabs
    v-model="editableTabsValue"
    type="card"
    editable
    class="demo-tabs"
    @edit="handleTabsEdit"
  >
  <!-- 控件内对数组进行for循环动态分配控件个数 -->
    <el-tab-pane
      v-for="item in editableTabs"
      :key="item.name"
      :label="item.title"
      :name="item.name"
    >
  <!-- 此处使用插槽记录并显示当前标签页的顺序 -->
      {{ item.content }}
    </el-tab-pane>
  </el-tabs>
</template>

<script lang="ts" setup>
import { ref } from 'vue'
import type { TabPaneName } from 'element-plus'

let tabIndex = 2
const editableTabsValue = ref('2')
const editableTabs = ref([
  {
    title: 'Tab 1',
    name: '1',
    content: 'Tab 1 content',
  },
  {
    title: 'Tab 2',
    name: '2',
    content: 'Tab 2 content',
  },
])

const handleTabsEdit = (
  targetName: TabPaneName | undefined,
  action: 'remove' | 'add'
) => {
  if (action === 'add') {
    const newTabName = `${++tabIndex}`
    editableTabs.value.push({
      title: 'New Tab',
      name: newTabName,
      content: 'New Tab content',
    })
    editableTabsValue.value = newTabName
  } else if (action === 'remove') {
    const tabs = editableTabs.value
    let activeName = editableTabsValue.value
    if (activeName === targetName) {
      tabs.forEach((tab, index) => {
        if (tab.name === targetName) {
          const nextTab = tabs[index + 1] || tabs[index - 1]
          if (nextTab) {
            activeName = nextTab.name
          }
        }
      })
    }

    editableTabsValue.value = activeName
    editableTabs.value = tabs.filter((tab) => tab.name !== targetName)
  }
}
</script>

<style>
.demo-tabs > .el-tabs__content {
  padding: 32px;
  color: #6b778c;
  font-size: 32px;
  font-weight: 600;
}
</style>

5、Tabs API(父级元素API)与Tab-pane API(子元素API)官方介绍