Element-ui tree组件自定义节点使用方法代码详解

<template>
 <div class="sortdiv">
  <el-tree :data="sortdata" draggable node-key="id" ref="sorttree" default-expand-all :expand-on-click-node="false" :render-content="rendercontent" :allow-drop="allowdrop">
  </el-tree>
  <el-button @click="getdata">获取数据</el-button>
 </div>
</template>
<script>
export default {
 name: 'sort',
 data() {
  return {
   sortdata: [
    {
     id: 1,
     label: '一级 1',
     checkitem: true,
     children: [
      {
       id: 4,
       label: '二级 1-1',
       checkitem: false
      },
      {
       id: 9,
       label: '二级 1-2',
       checkitem: false
      },
      {
       id: 10,
       label: '二级 1-3',
       checkitem: false
      }
     ]
    },
    {
     id: 2,
     label: '一级 2',
     checkitem: true,
     children: [
      {
       id: 5,
       label: '二级 2-1',
       checkitem: true
      },
      {
       id: 6,
       label: '二级 2-2',
       checkitem: true
      }
     ]
    },
    {
     id: 3,
     label: '一级 3',
     checkitem: true,
     children: [
      {
       id: 7,
       label: '二级 3-1',
       checkitem: true
      },
      {
       id: 8,
       label: '二级 3-2',
       checkitem: false
      }
     ]
    }
   ]
  };
 },
 methods: {
  // 是否允许拖拽
  allowdrop (draggingnode, dropnode, type) {
   if (draggingnode.parent === dropnode.parent) {
    return type !== 'inner'
   }
   else return false
  },
  //获取数据
  getdata () {
   let result = this.$refs['sorttree'].data;
   let sortrulesmaps = [];
   result.foreach((element, index) => {
    let item = null;
    if (element.checkitem) {
     if (element.children && element.children.length > 0) {
      item = {
       orderindex: index,
       sortfield: element.label,
       rule: ['others']
      };
      element.children.foreach(i => {
       if (i.checkitem) {
        item.rule.push(i.label);
       }
      });
      item.rule = item.rule.join('_');
     }
    }
    item && sortrulesmaps.push(item);
   });
  },
  //同级置顶功能
  totop(node, data) {
    let c = object.assign({}, data);
    if (node.parent.level === 0) {
     this.sortdata.unshift(c)
    } else {
     node.parent.data.children.unshift(c);
    }
    this.$refs['sorttree'].remove(data.id);
  },
  changenode(r, node, data) {
   data.checkitem = r;
  },
  //自定义内容
  rendercontent(h, { node, data }) {
   return (
    <span class="custom-tree-node">
     <span>{data.label}</span>
     <span>
      <el-checkbox
       v-model={data.checkitem}
       checked={data.checkitem}
       on-change={r => this.changenode(r, node, data)}
      />
      <el-button
       size="mini"
       type="text"
       on-click={() => this.totop(node, data)}
       style="color:#707375;margin-left:10px"
      >
       <i class="fa fa-arrow-up">置顶</i>
      </el-button>
     </span>
    </span>
   );
  }
 }
};
</script>
<style lang="scss">
.sortdiv {
 .el-icon-caret-right:before {
  content: '\e604';
 }
}
.custom-tree-node {
 flex: 1;
 display: flex;
 align-items: center;
 justify-content: space-between;
 font-size: 14px;
 padding-right: 8px;
}
</style>

 rendercontent:function(createelement, { node, data, store }) {
        var self = this;
        return createelement('span', [
          createelement('span', node.label),
          createelement('span', {attrs:{
            style:"float: right; margin-right: 200px"
          }},[
            createelement('el-button',{attrs:{
              size:"mini"
            },on:{
              click:function() {
                console.info("点击了节点" + data.id + "的添加按钮");
                store.append({ id: self.baseid++, label: 'testtest', children: [] }, data);
              }
            }},"添加"),
            createelement('el-button',{attrs:{
              size:"mini"
            },on:{
              click:function() {
                console.info("点击了节点" + data.id + "的删除按钮");
                store.remove(data);
              }
            }},"删除"),
          ]),
        ]);
      }