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ElementPlus Dropdown 下拉菜单

terry • • ElementPlus 教程 • 阅读 431

Dropdown 下拉菜单

将动作或菜单折叠到下拉菜单中。

基础用法

移动到下拉菜单上，展开更多操作。

ElementPlus Dropdown 下拉菜单

通过组件slot来设置下拉触发的元素以及需要通过具名slot为dropdown 来设置下拉菜单。默认情况下，下拉按钮只要hover即可，无需点击也会显示下拉菜单。

<template>
  <el-dropdown>
  <span class="el-dropdown-link">
    下拉菜单<i class="el-icon-arrow-down el-icon--right"></i>
  </span>
  <template #dropdown>
    <el-dropdown-menu>
      <el-dropdown-item>黄金糕</el-dropdown-item>
      <el-dropdown-item>狮子头</el-dropdown-item>
      <el-dropdown-item>螺蛳粉</el-dropdown-item>
      <el-dropdown-item disabled>双皮奶</el-dropdown-item>
      <el-dropdown-item divided>蚵仔煎</el-dropdown-item>
    </el-dropdown-menu>
  </template>
</el-dropdown>
</template>

<style>
  .el-dropdown-link {
    cursor: pointer;
    color: #409eff;
  }
  .el-icon-arrow-down {
    font-size: 12px;
  }
</style>

触发对象

可使用按钮触发下拉菜单。

ElementPlus Dropdown 下拉菜单

设置split-button属性来让触发下拉元素呈现为按钮组，左边是功能按钮，右边是触发下拉菜单的按钮，设置为true即可。

<template>
  <el-dropdown>
  <el-button type="primary">
    更多菜单<i class="el-icon-arrow-down el-icon--right"></i>
  </el-button>
  <template #dropdown>
    <el-dropdown-menu>
      <el-dropdown-item>黄金糕</el-dropdown-item>
      <el-dropdown-item>狮子头</el-dropdown-item>
      <el-dropdown-item>螺蛳粉</el-dropdown-item>
      <el-dropdown-item>双皮奶</el-dropdown-item>
      <el-dropdown-item>蚵仔煎</el-dropdown-item>
    </el-dropdown-menu>
  </template>
</el-dropdown>
<el-dropdown split-button type="primary" @click="handleClick">
  更多菜单
  <template #dropdown>
    <el-dropdown-menu>
      <el-dropdown-item>黄金糕</el-dropdown-item>
      <el-dropdown-item>狮子头</el-dropdown-item>
      <el-dropdown-item>螺蛳粉</el-dropdown-item>
      <el-dropdown-item>双皮奶</el-dropdown-item>
      <el-dropdown-item>蚵仔煎</el-dropdown-item>
    </el-dropdown-menu>
  </template>
</el-dropdown>
</template>

<script>
  export default {
    methods: {
      handleClick() {
        alert(button click)
      },
    },
  }
</script>
<style>
  .el-dropdown {
    vertical-align: top;
  }
  .el-dropdown + .el-dropdown {
    margin-left: 15px;
  }
  .el-icon-arrow-down {
    font-size: 12px;
  }
</style>

触发方式

可以配置 click 激活或者 hover 激活。

ElementPlus Dropdown 下拉菜单

在trigger属性设置为click即可。

<template>
  <el-row class="block-col-2">
  <el-col :span="8">
    <span class="demonstration">hover 激活</span>
    <el-dropdown>
      <span class="el-dropdown-link">
        下拉菜单<i class="el-icon-arrow-down el-icon--right"></i>
      </span>
      <template #dropdown>
        <el-dropdown-menu>
          <el-dropdown-item icon="el-icon-plus">黄金糕</el-dropdown-item>
          <el-dropdown-item icon="el-icon-circle-plus">狮子头</el-dropdown-item>
          <el-dropdown-item icon="el-icon-circle-plus-outline"
            >螺蛳粉</el-dropdown-item
          >
          <el-dropdown-item icon="el-icon-check">双皮奶</el-dropdown-item>
          <el-dropdown-item icon="el-icon-circle-check"
            >蚵仔煎</el-dropdown-item
          >
        </el-dropdown-menu>
      </template>
    </el-dropdown>
  </el-col>
  <el-col :span="8">
    <span class="demonstration">click 激活</span>
    <el-dropdown trigger="click">
      <span class="el-dropdown-link">
        下拉菜单<i class="el-icon-arrow-down el-icon--right"></i>
      </span>
      <template #dropdown>
        <el-dropdown-menu>
          <el-dropdown-item icon="el-icon-plus">黄金糕</el-dropdown-item>
          <el-dropdown-item icon="el-icon-circle-plus">狮子头</el-dropdown-item>
          <el-dropdown-item icon="el-icon-circle-plus-outline"
            >螺蛳粉</el-dropdown-item
          >
          <el-dropdown-item icon="el-icon-check">双皮奶</el-dropdown-item>
          <el-dropdown-item icon="el-icon-circle-check"
            >蚵仔煎</el-dropdown-item
          >
        </el-dropdown-menu>
      </template>
    </el-dropdown>
  </el-col>
  <el-col :span="8">
    <span class="demonstration">右键(contextmenu) 激活</span>
    <el-dropdown trigger="contextmenu">
      <span class="el-dropdown-link">
        下拉菜单<i class="el-icon-arrow-down el-icon--right"></i>
      </span>
      <template #dropdown>
        <el-dropdown-menu>
          <el-dropdown-item icon="el-icon-plus">黄金糕</el-dropdown-item>
          <el-dropdown-item icon="el-icon-circle-plus">狮子头</el-dropdown-item>
          <el-dropdown-item icon="el-icon-circle-plus-outline"
            >螺蛳粉</el-dropdown-item
          >
          <el-dropdown-item icon="el-icon-check">双皮奶</el-dropdown-item>
          <el-dropdown-item icon="el-icon-circle-check"
            >蚵仔煎</el-dropdown-item
          >
        </el-dropdown-menu>
      </template>
    </el-dropdown>
  </el-col>
</el-row>
</template>

<style>
  .el-dropdown-link {
    cursor: pointer;
    color: #409eff;
  }
  .el-icon-arrow-down {
    font-size: 12px;
  }
  .demonstration {
    display: block;
    color: var(--el-text-color-secondary);
    font-size: 14px;
    margin-bottom: 20px;
  }
</style>

菜单隐藏方式

可以hide-on-click属性来配置。

ElementPlus Dropdown 下拉菜单

下拉菜单默认在点击菜单项后会被隐藏，将hide-on-click属性默认为false可以关闭此功能。

<template>
  <el-dropdown :hide-on-click="false">
  <span class="el-dropdown-link">
    下拉菜单<i class="el-icon-arrow-down el-icon--right"></i>
  </span>
  <template #dropdown>
    <el-dropdown-menu>
      <el-dropdown-item>黄金糕</el-dropdown-item>
      <el-dropdown-item>狮子头</el-dropdown-item>
      <el-dropdown-item>螺蛳粉</el-dropdown-item>
      <el-dropdown-item disabled>双皮奶</el-dropdown-item>
      <el-dropdown-item divided>蚵仔煎</el-dropdown-item>
    </el-dropdown-menu>
  </template>
</el-dropdown>
</template>

<style>
  .el-dropdown-link {
    cursor: pointer;
    color: #409eff;
  }
  .el-icon-arrow-down {
    font-size: 12px;
  }
</style>

指令事件

点击菜单项后会触发事件，用户可以通过相应的菜单项 key 进行不同的操作

ElementPlus Dropdown 下拉菜单

<template>
  <el-dropdown @command="handleCommand">
  <span class="el-dropdown-link">
    下拉菜单<i class="el-icon-arrow-down el-icon--right"></i>
  </span>
  <template #dropdown>
    <el-dropdown-menu>
      <el-dropdown-item command="a">黄金糕</el-dropdown-item>
      <el-dropdown-item command="b">狮子头</el-dropdown-item>
      <el-dropdown-item command="c">螺蛳粉</el-dropdown-item>
      <el-dropdown-item command="d" disabled>双皮奶</el-dropdown-item>
      <el-dropdown-item command="e" divided>蚵仔煎</el-dropdown-item>
    </el-dropdown-menu>
  </template>
</el-dropdown>
</template>

<script>
  export default {
    methods: {
      handleCommand(command) {
        this.$message(click on item  + command)
      },
    },
  }
</script>
<style>
  .el-dropdown-link {
    cursor: pointer;
    color: #409eff;
  }
  .el-icon-arrow-down {
    font-size: 12px;
  }
</style>

不同尺寸

Dropdown 组件提供除了默认值以外的三种尺寸，可以在不同场景下选择合适的尺寸。

ElementPlus Dropdown 下拉菜单

额外的尺寸：medium、small、mini，通过设置size属性来配置它们。

<template>
  <el-dropdown split-button type="primary">
  默认尺寸
  <template #dropdown>
    <el-dropdown-menu>
      <el-dropdown-item>黄金糕</el-dropdown-item>
      <el-dropdown-item>狮子头</el-dropdown-item>
      <el-dropdown-item>螺蛳粉</el-dropdown-item>
      <el-dropdown-item>双皮奶</el-dropdown-item>
      <el-dropdown-item>蚵仔煎</el-dropdown-item>
    </el-dropdown-menu>
  </template>
</el-dropdown>

<el-dropdown size="medium" split-button type="primary">
  中等尺寸
  <template #dropdown>
    <el-dropdown-menu>
      <el-dropdown-item>黄金糕</el-dropdown-item>
      <el-dropdown-item>狮子头</el-dropdown-item>
      <el-dropdown-item>螺蛳粉</el-dropdown-item>
      <el-dropdown-item>双皮奶</el-dropdown-item>
      <el-dropdown-item>蚵仔煎</el-dropdown-item>
    </el-dropdown-menu>
  </template>
</el-dropdown>

<el-dropdown size="small" split-button type="primary">
  小型尺寸
  <template #dropdown>
    <el-dropdown-menu>
      <el-dropdown-item>黄金糕</el-dropdown-item>
      <el-dropdown-item>狮子头</el-dropdown-item>
      <el-dropdown-item>螺蛳粉</el-dropdown-item>
      <el-dropdown-item>双皮奶</el-dropdown-item>
      <el-dropdown-item>蚵仔煎</el-dropdown-item>
    </el-dropdown-menu>
  </template>
</el-dropdown>

<el-dropdown size="mini" split-button type="primary">
  超小尺寸
  <template #dropdown>
    <el-dropdown-menu>
      <el-dropdown-item>黄金糕</el-dropdown-item>
      <el-dropdown-item>狮子头</el-dropdown-item>
      <el-dropdown-item>螺蛳粉</el-dropdown-item>
      <el-dropdown-item>双皮奶</el-dropdown-item>
      <el-dropdown-item>蚵仔煎</el-dropdown-item>
    </el-dropdown-menu>
  </template>
</el-dropdown>
</template>

Dropdown Attributes

参数说明类型可选值默认值
type菜单按钮类型，同 Button 组件(只在split-button为 true 的情况下有效)string——
size菜单尺寸，在split-button为 true 的情况下也对触发按钮生效stringmedium / small / mini—
max-height菜单最大高度string / number——
split-button下拉触发元素呈现为按钮组boolean—false
disabled是否禁用boolean—false
placement菜单弹出位置stringtop/top-start/top-end/bottom/bottom-start/bottom-endbottom
trigger触发下拉的行为stringhover, click, contextmenuhover
hide-on-click是否在点击菜单项后隐藏菜单boolean—true
show-timeout展开下拉菜单的延时（仅在 trigger 为 hover 时有效）number—250
hide-timeout收起下拉菜单的延时（仅在 trigger 为 hover 时有效）number—150
tabindexDropdown 组件的 tabindexnumber—0

Dropdown Slots

Name说明
—触发下拉列表显示的元素。 注意： 必须是一个元素或者或者组件
dropdown下拉列表，通常是 <el-dropdown-menu> 组件

Dropdown Events

事件名称说明回调参数
clicksplit-button 为 true 时，点击左侧按钮的回调—
command点击菜单项触发的事件回调dropdown-item 的指令
visible-change下拉框出现/隐藏时触发出现则为 true，隐藏则为 false

Dropdown Menu Item Attributes

参数说明类型可选值默认值
command指令string/number/object——
disabled禁用boolean—false
divided显示分割线boolean—false
icon图标类名string——

作者：terry，如若转载，请注明出处：https://www.web176.com/elementplus/19836.html

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