查询指标依然保持指标的选中状态

src/views/train/case-detail.vue

@@ -24,8 +24,8 @@
                     <el-row :gutter="20" type="flex">
                         <el-col :span="1" style="text-align:center;padding-top: 182px;width: 88px;" class="item-required">量化指标</el-col>
                         <el-col :span="7">
-                            <el-table ref="leftTable" :data="getFilterDataBySearchName" height="400" border highlight-current-row tooltip-effect="dark" @selection-change="leftSelectionChange">
+                            <el-table ref="leftTable" :data="getFilterDataBySearchName" :row-key="getRowKey" height="400" border highlight-current-row tooltip-effect="dark" @selection-change="leftSelectionChange">
-                                <el-table-column type="selection" width="55"></el-table-column>
+                                <el-table-column type="selection" :reserve-selection="true" width="55"></el-table-column>
                                 <el-table-column header-align="right" label="未选择 10/10">
                                     <el-table-column prop="name" label="名称" show-overflow-tooltip>
                                         <template slot="header" slot-scope="scope">
@@ -192,25 +192,11 @@
                   console.info(error)
               });
             },
+            getRowKey (row) {// 指定一个key标识这一行的数据
+                return row.id //id为row的data属性之一，必须唯一且与tableData中保持一致
+            },
             leftSelectionChange(selection) {
-                debugger;
-                //ZqqTODO 待测试
                 this.leftSelectedRows = selection;
-                let searchData = this.getFilterDataBySearchName;
-                searchData.forEach(item => {
-                    if (selection.filter(itemTmp => {return itemTmp.id == item.id;}).length > 0) {
-                        item._checked = true;
-                    }else{
-                        item._checked = false;
-                    }
-                })
-                this.leftDictTargetList.forEach(item2 => {
-                    for (let i = 0; i < searchData.length; i++) {
-                        if (searchData[i].id==item2.id){
-                            item2._checked = searchData[i]._checked;       //赋值为searchData[i]._checked,不能直接赋值true；
-                        }
-                    }
-                })
             },
             addToRight() {
                 console.info("addToRight")