ant-design-vue/components/breadcrumb/index.en-US.md

3.5 KiB

category type title cover
Components Navigation Breadcrumb https://gw.alipayobjects.com/zos/alicdn/9Ltop8JwH/Breadcrumb.svg

A breadcrumb displays the current location within a hierarchy. It allows going back to states higher up in the hierarchy.

When To Use

  • When the system has more than two layers in a hierarchy.
  • When you need to inform the user of where they are.
  • When the user may need to navigate back to a higher level.

API

Property Description Type Optional Default Version
itemRender Custom item renderer, #itemRender="{route, params, routes, paths}" ({route, params, routes, paths}) => vNode -
params Routing parameters object -
routes The routing stack information of router routes[] -
separator Custom separator string|slot /

Breadcrumb.Item

Property Description Type Default Version
href Target of hyperlink string -
overlay The dropdown menu Menu | () => Menu -

Events

Events Name Description Arguments Version
click handler to handle click event (e:MouseEvent)=>void - 1.5.0

Breadcrumb.Separator 1.5.0

Property Description Type Default Version
- - - - -

When using Breadcrumb.Separator,its parent component must be set to separator="", otherwise the default separator of the parent component will appear.

routes

interface Route {
  path: string;
  breadcrumbName: string;
  children?: Array<{
    path: string;
    breadcrumbName: string;
  }>;
}

Use with browserHistory

The link of Breadcrumb item targets # by default, you can use itemRender to make a browserHistory Link.

<template>
  <a-breadcrumb :routes="routes">
    <template #itemRender="{ route, params, routes, paths }">
      <span v-if="routes.indexOf(route) === routes.length - 1">{{route.breadcrumbName}}</span>
      <router-link v-else :to="paths.join('/')">{{route.breadcrumbName}}</router-link>
    </template>
  </a-breadcrumb>
</template>
<script lang="ts">
  import { defineComponent, ref } from 'vue';
  interface Route {
    path: string;
    breadcrumbName: string;
    children?: Array<{
      path: string;
      breadcrumbName: string;
    }>;
  }
  export default defineComponent({
    setup() {
      const routes = ref<Route[]>([
        {
          path: 'index',
          breadcrumbName: 'home',
        },
        {
          path: 'first',
          breadcrumbName: 'first',
          children: [
            {
              path: '/general',
              breadcrumbName: 'General',
            },
            {
              path: '/layout',
              breadcrumbName: 'Layout',
            },
            {
              path: '/navigation',
              breadcrumbName: 'Navigation',
            },
          ],
        },
        {
          path: 'second',
          breadcrumbName: 'second',
        },
      ]);
      return {
        routes,
      };
    },
  });
</script>