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Tree 树形控件

用清晰的层级结构展示信息,可展开或折叠。

基础用法

基础的树形结构展示。

js
webpack
css
<template>
  <div class="demo-button">
   <MTree :data="data" />
  </div>
</template>
<script setup>
  const data = [
      {
        id: '1', 
        label: 'js',
        expanded: false,
        children: [
          {
            id: '1001', 
            label: 'vue',
            expanded: false,
            children: [
              {id: '100101', label: 'vue2'},
              {id: '100102', label: 'vue3'},
            ]
          }, 
          {id: '1002', label: 'react'}
        ]
      },
      {
        id: '2',
        label: 'webpack'
      },
      {
        id: '3',
        label: 'css',
        expanded: false,
        children: [
          {id: '3001', label: 'sass'},
          {id: '3002', label: 'less'},
          {id: '3003', label: 'stylus'}
        ]
      }
    ]
</script>

可选择

适用于需要选择层级时使用。

js
webpack
css
<template>
  <div class="demo-button">
   <MTree :data="data" checkable />
  </div>
</template>
<script setup>
  const data = [
      {
        id: '1', 
        label: 'js',
        expanded: false,
        children: [
          {
            id: '1001', 
            label: 'vue',
            expanded: false,
            children: [
              {id: '100101', label: 'vue2'},
              {id: '100102', label: 'vue3'},
            ]
          }, 
          {id: '1002', label: 'react'}
        ]
      },
      {
        id: '2',
        label: 'webpack'
      },
      {
        id: '3',
        label: 'css',
        expanded: false,
        children: [
          {id: '3001', label: 'sass'},
          {id: '3002', label: 'less'},
          {id: '3003', label: 'stylus'}
        ]
      }
    ]
</script>  

自定义图标

自定义节点图标。

js
webpack
css
<template>
  <div class="demo-button">
   <MTree :data="data">
    <template #icon="{ nodeData, toggleNode }">
        <span v-if="nodeData.isLeaf" class="devui-tree-node__indent"></span>
        <span v-else @click="(event) => {
            event.stopPropagation();
            toggleNode(nodeData);
          }"
        >
          <svg :style="{
              transform: nodeData.expanded ? 'rotate(90deg)': '',
              display: 'inline-block',
              margin: '0 5px',
              cursor: 'pointer'
            }" viewBox="0 0 1024 1024" width="12" height="12"
          >
            <path d="M857.70558 495.009024 397.943314 27.513634c-7.132444-7.251148-18.794042-7.350408-26.048259-0.216941-7.253194 7.132444-7.350408 18.795065-0.216941 26.048259l446.952518 454.470749L365.856525 960.591855c-7.192819 7.192819-7.192819 18.85544 0 26.048259 3.596921 3.596921 8.311293 5.39487 13.024641 5.39487s9.42772-1.798972 13.024641-5.39487L857.596086 520.949836C864.747973 513.797949 864.796068 502.219239 857.70558 495.009024z"></path>
          </svg>
        </span>
      </template>
      <template #content="treeNode">
        <svg v-if="treeNode.isLeaf" id="octicon_file_16" viewBox="0 0 16 16" width="16" height="16" fill="#57606a" style="display:inline-block;margin-right: 8px;"><path fill-rule="evenodd" d="M3.75 1.5a.25.25 0 00-.25.25v11.5c0 .138.112.25.25.25h8.5a.25.25 0 00.25-.25V6H9.75A1.75 1.75 0 018 4.25V1.5H3.75zm5.75.56v2.19c0 .138.112.25.25.25h2.19L9.5 2.06zM2 1.75C2 .784 2.784 0 3.75 0h5.086c.464 0 .909.184 1.237.513l3.414 3.414c.329.328.513.773.513 1.237v8.086A1.75 1.75 0 0112.25 15h-8.5A1.75 1.75 0 012 13.25V1.75z"></path></svg>
        <svg v-else  id="octicon_file-directory-fill_16" viewBox="0 0 16 16" width="16" height="16" fill="#54aeff" style="display:inline-block; margin-right: 8px;"><path d="M1.75 1A1.75 1.75 0 000 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0016 13.25v-8.5A1.75 1.75 0 0014.25 3H7.5a.25.25 0 01-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75z"></path></svg>
        {{treeNode.label}}
      </template>
   </MTree>
  </div>
</template>
<script setup>
  const data = [
      {
        id: '1', 
        label: 'js',
        expanded: false,
        children: [
          {
            id: '1001', 
            label: 'vue',
            expanded: false,
            children: [
              {id: '100101', label: 'vue2'},
              {id: '100102', label: 'vue3'},
            ]
          }, 
          {id: '1002', label: 'react'}
        ]
      },
      {
        id: '2',
        label: 'webpack'
      },
      {
        id: '3',
        label: 'css',
        expanded: false,
        children: [
          {id: '3001', label: 'sass'},
          {id: '3002', label: 'less'},
          {id: '3003', label: 'stylus'}
        ]
      }
    ]
</script>