Element - el-tree 模版

一、效果

具备功能:

  • 新增根节点、刷新树、展开全部
  • 新增子节点、编辑、删除

2、组件

<template>
  <div class="white-body-view">
    <el-tree id="my-tree"
             ref="tree"
             class="tree-view structure-tree scroll-bar"
             :data="treeData"
             highlight-current
             :default-expand-all="treeExpandAll"
             :props="defaultProps"
             check-strictly
             :default-expanded-keys="[1,2]"
             :node-key="treeNodeKey"
             @node-click="handleNodeClick"
             :auto-expand-parent="false"
             :expand-on-click-node="false">
      <span slot-scope="{ node, data }"
            class="custom-tree-node">
        <span class="tooltip">
          <span class="add-f-s-14">{
      
      { data.name }}</span>
        </span>
        <div v-if="node.isCurrent === true&&itemShow===true"
             class="operation-view">
          <i style="color:#ffffff"
             class="small-operation-btn el-icon-plus"
             @click.stop="handleAdd(data)" />
          <i style="color:#ffffff"
             class="small-operation-btn el-icon-edit"
             @click.stop="handleEdit(data)" />
          <i style="color:#ffffff"
             class="small-operation-btn el-icon-delete"
             @click.stop="handleDelete(data)" />
        </div>
      </span>
    </el-tree>
  </div>
</template>

<script>
export default {
  props: {
    // 列表数据
    treeData: {
      type: Array,
      default: function () {
        return []
      }
    },
    // 树节点是否默认展开
    treeExpandAll: {
      type: Boolean,
      default: true
    },

    // 树节点唯一标识
    treeNodeKey: {
      type: String,
      default: ''
    },

    // 子节点展示新增删除编辑图标
    itemShow: {
      type: Boolean,
      default: true
    }
  },

  data () {
    return {
      defaultProps: {
        children: 'children',
        label: 'name'
      },
      selectItem: {}
    }
  },
  watch: {
    treeExpandAll (e) {
      this.treeExpandAll = e
      console.log(e)
    }
  },
  mounted () {

  },
  methods: {
    // 添加新增按钮
    handleAdd (data) {
      this.$emit('addItem', data)
    },

    // 点击删除按钮
    handleDelete (data) {
      this.$emit('deleteItem', data)
    },

    // 点击编辑按钮
    handleEdit (data) {
      this.selectItem = data
      this.$emit('editItem', JSON.parse(JSON.stringify(data)))
    },

    // ============== 组件内事件 结束=============

    // ============== -----------------------------------父组件回调事件 开始=============

    // 添加新记录,树形列表回显
    treeAddItem (data) {
      this.$refs.tree.append(data, data.parentUid)
    },
    // 选中事件
    handleNodeClick (data) {
      this.$emit('handleNodeClick', data)
    },

    // 删除节点
    treeDeleteItem (val) {
      this.$refs.tree.remove(val)
    },

    // 修改记录,树形列表回显
    treeEditItem (val) {
      Object.assign(this.selectItem, val)
      this.selectItem = {}
    }

    // ============== 父组件回调事件 结束=============

  }
}
</script>
<style lang="scss" scoped>
.white-body-view {
  width: 100%;
  min-width: 320px;
}
.structure-tree {
  .el-scrollbar .el-scrollbar__wrap {
    overflow-x: hidden;
  }
  #my-tree .el-tree > .el-tree-node {
    min-width: 100%;
    display: inline-block;
  }
  .el-tree-node__content {
    margin-bottom: 10px;
  }
  .tooltip {
    margin-right: 5px;
    font-size: 13px;
    border-radius: 4px;
    box-sizing: border-box;
    white-space: nowrap;
    padding: 4px;
  }
  .operation-view {
    display: inline-block;
    padding: 0px 5px;
    margin-left: 5px;
    color: #777777;
  }
  .small-operation-btn {
    margin: 0px 3px;
  }
}
.el-icon-plus:hover {
  color: #1c92e0;
}
.el-icon-edit:hover {
  color: #1c92e0;
}
.el-icon-delete:hover {
  color: #1c92e0;
}
::v-deep .el-tree {
  color: #333333;
}
</style>

3、使用

      <el-col :span="7">
        <el-card class="box-card">
          <div slot="header"
               class="clearfix">
            <el-button size="mini"
                       type="primary"
                       @click="addTree">添加</el-button>
            <el-button size="mini"
                       type="info"
                       @click="resetQuery"
                       style="margin-right:10px">刷新</el-button>
            <el-checkbox v-model="checked"
                         @change="getTask">全部展开</el-checkbox>
          </div>
          <div class="scroll-bar item">
            <PubliceTree v-if="refreshTable"
                         ref="customTree"
                         :itemShow="itemShow"
                         :tree-data="treeData"
                         :tree-expand-all="treeExpandAll"
                         :tree-node-key="treeNodeKey"
                         @handleNodeClick='handleNodeClick'
                         @addItem="addTreeItem"
                         @deleteItem="deleteTreeItem"
                         @editItem="editTreeItem">
            </PubliceTree>
          </div>
        </el-card>
      </el-col>
          <!-- 新增 -->
    <AddTask ref="placeDialog"
             @addData="addData"
             @editData="editData"></AddTask>
<script>
import PubliceTree from '@/views/components/publice/publiceTree';
import AddTask from '@/views/assessment_library/components/addTask';
export default {
  components: { PubliceTree, AddTask },
  data () {
    return {
      checked: false,
      itemShow: true,
      treeExpandAll: false,
      refreshTable: true,
      treeNodeKey: 'uid',
      treeData: [],
    };
  },
  created () { },
  mounted () {
    this.getTreeselect();
  },
  methods: {
    resetQuery () {
      this.getTreeselect();
    },
    //  查询左侧tree下拉树结构
    getTreeselect () {
      treeselect().then(response => {
        this.treeData = this.handleTree(response.data, 'uid', 'parentUid', 'children');
        // 选择顶级节点展示
        this.formTableData = [{ uid: 0, name: '顶级', children: this.treeData }];
      });
    },
    // 展开全部
    getTask () {
      this.refreshTable = false;
      this.treeExpandAll = !this.treeExpandAll;
      // this.$nextTick()将回调延迟到下次 DOM 更新循环之后执行,类似全局刷新
      this.$nextTick(() => {
        this.refreshTable = true;
      });
    },
    // 选中每一个子节点---对应右边明细
    handleNodeClick (data) {
      getDetail({ uid: data.uid }).then(response => {
        this.formItem = {
          allFlag: response.data.allFlag,
          sort: response.data.sort,
          name: response.data.name,
          stander: response.data.stander,
          parentUid: response.data.parentUid,
          uid: response.data.uid
        };
        if (response.data.parentUid === 0) {
          this.formItem.parentName = response.data.name;
        } else {
          this.formItem.parentName = response.data.parentName;
        }
      });
    },
    // 弹框------------------------新增表单数据
    addData (data) {
      // this.$refs.customTree.treeAddItem(data)
      this.getTreeselect();
      this.clean();
    },
    // 弹框-------------------------修改表单数据
    editData (data) {
      this.$refs.customTree.treeEditItem(data);
      this.handleNodeClick(data);
    },
    addTree () {
      this.$refs.placeDialog.openDialog(false, '', {}, this.formTableData);
    },
    // ----------------增加树节点设置默认父级节点
    addTreeItem (data) {
      this.$refs.placeDialog.openDialog(false, data.uid, data, undefined);
    },
    // ----------------修改树节点
    editTreeItem (data) {
      this.$refs.placeDialog.openDialog(true, data.uid, data, undefined);
    },
    // ---删除树节点
    deleteTreeItem (data) {
      this.$confirm('确认要删除当前节点 ' + data.name + ' 吗?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      })
        .then(() => {
          // 删除树节点
          DeleteTreeselect({ uid: data.uid }).then(response => {
            this.$message({ type: 'success', message: '删除成功' });
            this.clean();
            this.$refs.customTree.treeDeleteItem(data);
          });
        })
        .catch(() => { });
    },
  }
};
</script>

addTask.vue

<template>
  <el-dialog :title="title"
             :visible.sync="modal_infos"
             width="600px"
             :close-on-click-modal="false"
             :loading="loading"
             left
             append-to-body>
    <el-form ref="formItem"
             :model="formItem"
             label-width="100px">
      <el-form-item label="上级:"
                    :rules="{ required: true, message: '请输入上级', trigger: 'blur' }"
                    :prop="treeData === undefined ?'parentName' : 'parentUid'">
        <el-input v-show="treeData === undefined"
                  v-model="formItem.parentName"
                  :readonly="true"
                  style="width:95%"
                  placeholder="请输入" />
        <treeselect v-show="treeData !== undefined"
                    v-model="formItem.parentUid"
                    :options="treeData"
                    :searchable="false"
                    :clearable="false"
                    :normalizer="normalizer"
                    placeholder="请选择" />
      </el-form-item>
      <el-form-item label="名称:"
                    :rules="{ required: true, message: '请输入名称', trigger: 'blur' }"
                    prop="name">
        <el-input v-model="formItem.name"
                  maxlength="20"
                  show-word-limit
                  style="width:95%"
                  placeholder="请输入" />
      </el-form-item>
      <el-form-item label="排序:"
                    :rules="{ required: true, message: '请输入排序', trigger: 'blur' }"
                    prop="sort">
        <el-input-number size="small"
                         :min="0"
                         v-model="formItem.sort"></el-input-number>
      </el-form-item>
      <el-form-item label="启用:"
                    :rules="{ required: true, message: '请选择启用', trigger: 'blur' }"
                    prop="allFlag">
        <el-select v-model="formItem.allFlag"
                   placeholder="请选择"
                   style="margin-right:10px;">
          <el-option value="1"
                     label="是">是</el-option>
          <el-option value="0"
                     label="否">否</el-option>
        </el-select>
      </el-form-item>
      <el-form-item label="考核标准:"
                    prop="stander">
        <el-input v-model="formItem.stander"
                  type="textarea"
                  maxlength="255"
                  style="width:95%"
                  placeholder="请输入(255字以内...)" />
      </el-form-item>
    </el-form>
    <div slot="footer"
         style="text-align:center">
      <el-button :loading='ldstatus'
                 @click="submitForm"
                 type="success"
                 size="small">提交</el-button>
      <el-button @click="clean"
                 size="small">关闭</el-button>
    </div>
  </el-dialog>
</template>
<script>
import Treeselect from '@riophae/vue-treeselect';
import '@riophae/vue-treeselect/dist/vue-treeselect.css';
import { getDetail, AddTreeselect, EditTreeselect } from '@/api/assessment_library/index.js'
export default {
  components: { Treeselect },
  data () {
    return {
      modal_infos: false,
      loading: false,
      title: '',
      ldstatus: false,
      isEdit: false,
      parentId: '',
      data: {},
      treeData: undefined,
      formItem: {
        allFlag: '1',
        sort: 0,
        name: undefined,
        parentUid: undefined,
        stander: undefined,
        parentName: undefined
      },
    };
  },
  created () { },
  mounted () { },
  methods: {
    // 转换类型数据结构
    normalizer (node) {
      if (node.children && !node.children.length) {
        delete node.children;
      }
      return {
        id: node.uid,
        label: node.name,
        children: node.children
      };
    },
    /**
    * @description 打开弹窗
    * @param { Boolean } isEdit 是否是修改状态 true 修改 / false 新增
    * @param { String } parentId 父级id,新增时默认选中父级时使用
    * @param { Object } data 表单数据,编辑时使用
    * @param { Object } formTableData tree数据,全局添加时使用
    */
    openDialog (isEdit, parentId, data, formTableData) {
      this.parentId = parentId
      this.data = data
      this.isEdit = isEdit
      this.title = isEdit ? '编辑' : '新增'
      this.initFormData()
      this.modal_infos = true
      if (isEdit) {
        getDetail({ uid: this.parentId }).then(response => {
          this.formItem = {
            allFlag: response.data.allFlag,
            sort: response.data.sort,
            name: response.data.name,
            stander: response.data.stander,
            parentUid: response.data.parentUid,
            uid: response.data.uid,
            parentName: response.data.parentName
          }
        })
      } else {
        if (formTableData !== undefined) {
          console.log('ad')
          this.treeData = formTableData
          this.formItem = {
            allFlag: '1',
            sort: 0,
            name: undefined,
            parentUid: undefined,
            stander: undefined,
            parentName: undefined
          }
        } else {
          this.formItem = {
            allFlag: '1',
            sort: this.data.sort,
            name: '',
            stander: '',
            parentUid: this.data.uid,
            parentName: this.data.name
          }
        }

      }
    },
    /** 提交按钮 */
    submitForm () {
      this.$refs.formItem.validate((valid) => {
        if (valid) {
          const formData = JSON.parse(JSON.stringify(this.formItem))
          if (this.isEdit) {
            this.ldstatus = true;
            EditTreeselect(this.formItem).then(response => {
              this.ldstatus = false;
              this.msgSuccess('修改成功')
              this.$emit('editData', formData)
            }).catch(error => {
              this.ldstatus = false;
              console.log(error);
            });
          } else {
            this.ldstatus = true;
            AddTreeselect(this.formItem).then(response => {
              this.ldstatus = false;
              this.msgSuccess('新增成功')
              this.$emit('addData', formData, )
            })
              .catch(error => {
                this.ldstatus = false;
                console.log(error);
              });
          }
          this.clean()
        }
      })
    },
    // 关闭
    clean () {
      this.$refs.formItem.resetFields()
      this.modal_infos = false
    },
    // 清楚表单
    initFormData () {
      this.formItem = {
        allFlag: '1',
        sort: 0,
        name: undefined,
        uid: undefined,
        parentUid: undefined,
        parentName: undefined
      }
    }
  }
};
</script>
<style lang="scss" scoped>
::v-deep label {
  font-weight: 400;
}
</style>

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转载自blog.csdn.net/hutuyaoniexi/article/details/127671994
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