• Vue 自定义封装树形表格组件


    效果

    我下面直接上代码了哈,

    <style>
        .ms-tree-space{position: relative;
            top: 1px;
            display: inline-block;
            font-family: 'Glyphicons Halflings';
            font-style: normal;
            font-weight: 400;
            line-height: 1;
             18px;
            height: 14px;}
        .ms-tree-space::before{content: ""}
        table td{
            line-height: 26px;
        }
        .el-table__expand-icon{
            display: inline-block;
             20px;
            line-height: 20px;
            height: 20px;
            text-align: center;
            margin-right: 3px;
            position: relative;
            cursor: pointer;
            color: #666;
            font-size: 12px;
            transition: transform .2s ease-in-out;
        }
        .el-icon-caret-right{
    
        }
        .el-icon-caret-bottom{
            transform: rotate(
                    90deg
            );
        }
        table-tree-component .row-operations {
            background-color:none;
            border-color: none;
        }
    </style>
    <script type="text/x-template" id="table-tree-template">
        <div class="table-tree-component">
            <el-table
                    :data="data"
                    border
                    :height="tableHeight - 130"
                    style=" '100%'"
                    :row-style="showTr" @selection-change="handleSelectionChange">
                <el-table-column
                        type="selection"
                        width="55">
                </el-table-column>
                <el-table-column v-for="(column, index) in columns" :key="column.dataIndex"
                                 :label="column.text" show-overflow-tooltip>
                    <template scope="scope">
                        <span v-if="spaceIconShow(index)" v-for="(space, levelIndex) in scope.row._level" class="ms-tree-space"></span>
                        <div class="el-table__expand-icon is-outlined is-primary is-small" v-if="toggleIconShow(index,scope.row)" @click="toggle(scope.$index)">
                            <i v-if="!scope.row._expanded" class="uex-icon-arrow-right" aria-hidden="true"></i>
                            <i v-if="scope.row._expanded" class="uex-icon-arrow-down" aria-hidden="true"></i>
                        </div>
                        <span v-else-if="index===0" class="ms-tree-space"></span>
                        {{scope.row[column.dataIndex]}}
                    </template>
                </el-table-column>
                <el-table-column label="操作" v-if="treeType === 'normal'" width="260">
                    <template scope="scope">
                        <div >
                            <el-tag type="primary" @click.native="view(scope.row)" title="查看" class="row-operations">
                                <span class="uex-icon-view"></span>
                            </el-tag>
                            <el-tag type="primary" @click.native="edit(scope.row)" title="编辑" class="row-operations">
                                <span class="uex-icon-edit"></span>
                            </el-tag>
                            <el-tag type="danger" @click.native="remove(scope.row)" title="移除" class="row-operations">
                                <span class="uex-icon-delete"></span>
                            </el-tag>
                        </div>
                    </template>
                </el-table-column>
            </el-table>
        </div>
    </script>
    <script>
        function DataTransfer (data) {
            if (!(this instanceof DataTransfer)) {
                return new DataTransfer(data, null, null)
            }
        }
        DataTransfer.treeToArray = function (data, parent, level, expandedAll) {
            let tmp = []
            Array.from(data).forEach(function (record) {
                if (record._expanded === undefined) {
                    Vue.set(record, '_expanded', expandedAll)
                }
                if (parent) {
                    Vue.set(record, '_parent', parent)
                }
                let _level = 0
                if (level !== undefined && level !== null) {
                    _level = level + 1
                }
                Vue.set(record, '_level', _level)
                tmp.push(record)
                if (record.children && record.children.length > 0) {
                    let children = DataTransfer.treeToArray(record.children, record, _level, expandedAll)
                    tmp = tmp.concat(children)
                }
            })
            return tmp
        };
        Vue.component('table-tree-component', {
            template: '#table-tree-template',
            props: {
                    // 该属性是确认父组件传过来的数据是否已经是树形结构了,如果是,则不需要进行树形格式化
                    treeStructure: {
                        type: Boolean,
                        default: function () {
                            return false
                        }
                    },
                    tableHeight:{
                        type: String,
                        default: function () {
                            return 0
                        }
                    },
                    // 这是相应的字段展示
                    columns: {
                        type: Array,
                        default: function () {
                            return []
                        }
                    },
                    // 这是数据源
                    dataSource: {
                        type: Array,
                        default: function () {
                            return []
                        }
                    },
                // 这个作用是根据自己需求来的,比如在操作中涉及相关按钮编辑,删除等,需要向服务端发送请求,则可以把url传过来
                    requestUrl: {
                        type: String,
                        default: function () {
                            return ''
                        }
                    },
                    // 这个是是否展示操作列
                    treeType: {
                        type: String,
                        default: function () {
                            return 'normal'
                        }
                    },
                    // 是否默认展开所有树
                    defaultExpandAll: {
                        type: Boolean,
                        default: function () {
                            return false
                        }
                    }
            },
            data: function() {
                return {
    
    
                };
            },
            computed: {
                // 格式化数据源
                data: function () {
                    let me = this
                    if (me.treeStructure) {
                        let data = DataTransfer.treeToArray(me.dataSource, null, null, me.defaultExpandAll)
                        console.log(data)
                        return data
                    }
                    return me.dataSource
                }
            },
            methods: {
                view:function(row){
                    console.log('row',row)
                    var self=this;
                    self.$emit('rowbtnview', row)
                },
                edit:function(row){
                    this.$emit('rowbtnedit', row)
                },
                remove:function(row){
                    this.$emit('rowbtnremove', row)
                },
                handleSelectionChange:function(val){
                    console.log('val',val)
                },
                // 显示行
                showTr: function (row, index) {
                    let show = (row._parent ? (row._parent._expanded && row._parent._show) : true)
                    row._show = show
                    return show ? '' : 'display:none;'
                },
                // 展开下级
                toggle: function (trIndex) {
                    let me = this
                    let record = me.data[trIndex]
                    record._expanded = !record._expanded
                },
                // 显示层级关系的空格和图标
                spaceIconShow (index) {
                    let me = this
                    if (me.treeStructure && index === 0) {
                        return true
                    }
                    return false
                },
                // 点击展开和关闭的时候,图标的切换
                toggleIconShow (index, record) {
                    let me = this
                    if (me.treeStructure && index === 0 && record.children && record.children.length > 0) {
                        return true
                    }
                    return false
                },
                handleDelete () {
                    this.$confirm('此操作将永久删除该记录, 是否继续?', '提示', {
                        confirmButtonText: '确定',
                        cancelButtonText: '取消',
                        type: 'error'
                    }).then(() => {
                        this.$message({
                            type: 'success',
                            message: '删除成功!'
                        })
                    }).catch(() => {
                        this.$message({
                            type: 'info',
                            message: '已取消删除'
                        })
                    })
                }
    
            },
            watch: {
            },
            created: function() {
                console.log('erer')
            },
            mounted: function() {
    
            }
        })
    </script>
    

    调用

    肯定要引入进来哦,我这里就没有上引入组件的代码,我这用的Vue 是引入页面的方式用的,所以上述组件可能有点不一样,但是按照importent这样的方式引入进来即可。
     <table-tree-component
                                           :columns="columnes"
                                           :table-height="tableHeight"
                                           :tree-structure="true"
                                           :default-expand-all="true"
                                           :data-source="dataSource"
                                           @rowbtnview="rowBtnView($event)"
                                           @rowbtnedit="rowBtnEdit"
                                           @rowbtnremove="rowBtnRemove"
                                   ></table-tree-component>
    

    data,js

     columnes: [
                   {
                       text: '姓名',
                       dataIndex: 'name'
                   },
                   {
                       text: '年龄',
                       dataIndex: 'age'
                   },
                   {
                       text: '性别',
                       dataIndex: 'sex'
                   }
               ],
               dataSource: [
                   {
                       id: 1,
                       parentId: 0,
                       name: '测试1测试1测试1测试1测试1测试1测试1测试1测试1测试1测试1测试1测试1测试1测试1测试1测试1测试1测试1测试1测试1测试1测试1测试1测试1',
                       age: 18,
                       sex: '男',
                       children: [
                           {
                               id: 2,
                               parentId: 1,
                               name: '测试2',
                               age: 22,
                               sex: '男',
                               children:null,
                           }
                       ]
                   },
                   {
                       id: 3,
                       parentId: 0,
                       name: '测试3',
                       age: 23,
                       sex: '女',
                       children: [
                           {
                               id: 4,
                               parentId: 3,
                               name: '测试4',
                               age: 22,
                               sex: '男',
                               children:[
                                   {
                                       id: 4334,
                                       parentId: 3,
                                       name: '测试4-4',
                                       age: 22,
                                       sex: '男',
                                   }
                               ],
                           },
                           {
                               id: 5,
                               parentId: 3,
                               name: '测试5',
                               age: 25,
                               sex: '男',
                               children:null,
                           },
                           {
                               id: 6,
                               parentId: 3,
                               name: '测试6',
                               age: 26,
                               sex: '女',
                               children: [
                                   {
                                       id: 7,
                                       parentId: 6,
                                       name: '测试7',
                                       age: 27,
                                       sex: '男',
                                       children:null,
                                   }
                               ]
                           }
                       ]
                   },
                   {
                       id: 18,
                       parentId: 0,
                       name: '测试8',
                       age: 18,
                       sex: '男',
                       children:null,
                   }
               ],
     
    

    methods

     rowBtnView:function(val){
                console.log('rowBtnView',val)
            },
            rowBtnEdit:function(val){
                console.log('rowBtnEdit',val)
            },
            rowBtnRemove:function(val){
                console.log('rowBtnRemove',val)
            },
    

    有啥问题,随时扣我。

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  • 原文地址:https://www.cnblogs.com/wangliko/p/14567008.html
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