核心是使用v-if控制列的显隐
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<template> <div> <div v-for="(item, index) in tables" :key="index"> <el-table :data="item.data" @filter-change="value => filterChange(value,index, 'tables')" :span-method="value => cellMerge(value,'tables')" :header-cell-style="{background:'#fbfbfb'}" size="mini" doLayout border > <el-table-column v-for="(ele,index) in item.columns" :label="ele.text" :prop="ele.value" show-overflow-tooltip v-if="ele.flag" :key="ele.value + index" :resizable="false" > <template slot-scope="scope"> <span>{{scope.row[scope.column.property]}}</span> </template> </el-table-column> <el-table-column :key="item.columns.length + 1" fixed="right" width="50" v-if="item.stash_columns" :filters="item.stash_columns" :filtered-value="item.filter_value" :resizable="false" > <template slot="header" slot-scope="scope"> <i class="el-icon-menu" style="cursor: pointer"></i> </template> </el-table-column> </el-table> </div> </div> </template> <script> export default { data () { return { tables: [ { data: [], columns: [ { text: '滴滴', value: 'didi', flag: true }, { text: '哒哒', value: 'dada', flag: true }, { text: '嘿嘿', value: 'heihei', flag: true }, { text: '哈哈', value: 'haha', flag: false } ] } ] } }, methods: { // 处理数据 handlerData (type) { const data = [{didi: '11', dada: '22', heihei: '33', haha: '44'}] const tables = this[type] tables && tables.length > 0 && tables.map((item, index) => { this.$set(this[type][index], 'data', data) this.$set(this[type][index], 'stash_columns', item.columns) this.$set(this[type][index], 'filter_value', []) const columns = item.stash_columns const filter_value = item.filter_value columns && columns.length > 0 && columns.map((ele, idx) => { if (ele.flag) { filter_value.push(ele.value) } }) this.$set(this[type][index], 'filter_value', filter_value) }) }, // 控制列显隐 filterChange (value, idx, type) { switch (type) { case type: for (const ele in value) { this.$set(this[type][idx], 'show_columns', value[ele]) } const tables = this[type] tables && tables.length > 0 && tables.map((item, index) => { const columns = item.columns const show_columns = item.show_columns if (show_columns && show_columns.length > 0) { columns && columns.length > 0 && columns.map((val, key) => { this.$set(this[type][index].columns[key], 'flag', false) show_columns.map((ele) => { if (val.value === ele) { this.$set(this[type][index].columns[key], 'flag', true) } }) }) } }) break default: break } }, // 合并单元格 cellMerge ({row, column, rowIndex, columnIndex}, type) { this.$nextTick(() => { const tables = this[type] tables && tables.length > 0 && tables.map((item, index) => { const show_columns = item.show_columns const length = show_columns && show_columns.length > 0 ? show_columns.length : item.columns.length if (columnIndex === length - 1) { return [1, 0] } else if (columnIndex === length) { return [0, 0] } }) }) } }, mounted () { this.handlerData('tables') } } </script> |