树下拉

基础下拉

使用 VTreeDrop 组件可实现树下拉

在 Playground 打开示例

查看代码

<template>
  <VTreeDrop :data="data" checkable />
</template>

<script setup lang="ts">
import { ref } from 'vue'
import { VTreeDrop } from '@wsfe/vue-tree'

const data = ref([
  {
    title: 'node-1',
    id: 'node-1',
    children: [
      {
        title: 'node-1-1',
        id: 'node-1-1',
        children: [
          {
            title: 'node-1-1-1',
            id: 'node-1-1-1',
          },
          {
            title: 'node-1-1-2',
            id: 'node-1-1-2',
          },
          {
            title: 'node-1-1-3',
            id: 'node-1-1-3',
          },
        ],
      },
      {
        title: 'node-1-2',
        id: 'node-1-2',
        children: [
          {
            title: 'node-1-2-1',
            id: 'node-1-2-1',
          },
          {
            title: 'node-1-2-2',
            id: 'node-1-2-2',
          },
        ],
      },
      {
        title: 'node-1-3',
        id: 'node-1-3',
        children: [
          {
            title: 'node-1-3-1',
            id: 'node-1-3-1',
          },
          {
            title: 'node-1-3-2',
            id: 'node-1-3-2',
          },
        ],
      },
    ],
  },
  {
    title: 'node-2',
    id: 'node-2',
    children: [
      {
        title: 'node-2-1',
        id: 'node-2-1',
        children: [
          {
            title: 'node-2-1-1',
            id: 'node-2-1-1',
          },
          {
            title: 'node-2-1-2',
            id: 'node-2-1-2',
          },
        ],
      },
    ],
  },
])
</script>

自定义输入框展示

如果想自定义展示输入框选中的值，可使用 display 插槽

在 Playground 打开示例

查看代码

<template>
  <VTreeDrop :data="data" checkable>
    <template #display="scope">
      <div
        :style="{
          width: '170px',
          whiteSpace: 'nowrap',
          textOverflow: 'ellipsis',
          overflow: 'hidden',
        }"
      >
        {{ scope.checkedNodes.map((node) => node.title).join(',') }}
      </div>
    </template>
  </VTreeDrop>
</template>

<script setup lang="ts">
import { ref } from 'vue'
import { VTreeDrop } from '@wsfe/vue-tree'

const data = ref([
  {
    title: 'node-1',
    id: 'node-1',
    children: [
      {
        title: 'node-1-1',
        id: 'node-1-1',
        children: [
          {
            title: 'node-1-1-1',
            id: 'node-1-1-1',
          },
          {
            title: 'node-1-1-2',
            id: 'node-1-1-2',
          },
          {
            title: 'node-1-1-3',
            id: 'node-1-1-3',
          },
        ],
      },
      {
        title: 'node-1-2',
        id: 'node-1-2',
        children: [
          {
            title: 'node-1-2-1',
            id: 'node-1-2-1',
          },
          {
            title: 'node-1-2-2',
            id: 'node-1-2-2',
          },
        ],
      },
      {
        title: 'node-1-3',
        id: 'node-1-3',
        children: [
          {
            title: 'node-1-3-1',
            id: 'node-1-3-1',
          },
          {
            title: 'node-1-3-2',
            id: 'node-1-3-2',
          },
        ],
      },
    ],
  },
  {
    title: 'node-2',
    id: 'node-2',
    children: [
      {
        title: 'node-2-1',
        id: 'node-2-1',
        children: [
          {
            title: 'node-2-1-1',
            id: 'node-2-1-1',
          },
          {
            title: 'node-2-1-2',
            id: 'node-2-1-2',
          },
        ],
      },
    ],
  },
])
</script>

自定义整个输入框

使用默认插槽可把整个输入框替换掉

在 Playground 打开示例

查看代码

<template>
  <VTreeDrop :data="data" checkable>
    <template #default>
      <div
        :style="{
          width: '170px',
          cursor: 'pointer',
        }"
      >Click to show drop</div>
    </template>
  </VTreeDrop>
</template>

<script setup lang="ts">
import { ref } from 'vue'
import { VTreeDrop } from '@wsfe/vue-tree'

const data = ref([
  {
    title: 'node-1',
    id: 'node-1',
    children: [
      {
        title: 'node-1-1',
        id: 'node-1-1',
        children: [
          {
            title: 'node-1-1-1',
            id: 'node-1-1-1',
          },
          {
            title: 'node-1-1-2',
            id: 'node-1-1-2',
          },
          {
            title: 'node-1-1-3',
            id: 'node-1-1-3',
          },
        ],
      },
      {
        title: 'node-1-2',
        id: 'node-1-2',
        children: [
          {
            title: 'node-1-2-1',
            id: 'node-1-2-1',
          },
          {
            title: 'node-1-2-2',
            id: 'node-1-2-2',
          },
        ],
      },
      {
        title: 'node-1-3',
        id: 'node-1-3',
        children: [
          {
            title: 'node-1-3-1',
            id: 'node-1-3-1',
          },
          {
            title: 'node-1-3-2',
            id: 'node-1-3-2',
          },
        ],
      },
    ],
  },
  {
    title: 'node-2',
    id: 'node-2',
    children: [
      {
        title: 'node-2-1',
        id: 'node-2-1',
        children: [
          {
            title: 'node-2-1-1',
            id: 'node-2-1-1',
          },
          {
            title: 'node-2-1-2',
            id: 'node-2-1-2',
          },
        ],
      },
    ],
  },
])
</script>