设置元素数据修改

src/views/tentative/metadata.vue

@@ -66,10 +66,12 @@
         </div>
         <el-table
           :data="MetadataformDatass"
+          :row-key="selRowKey"
           border ref="dialogtable"
           style="width: 100%;">
           <el-table-column
             type="selection"
+            reserve-selection
             width="55">
           </el-table-column>
           <el-table-column
@@ -308,6 +310,7 @@ export default {
       data: [],
       setMetadataTag:false,
       MetadataformDatass:[],
+    
 
       page2:{
         pageSize:20,
@@ -485,6 +488,9 @@ export default {
 
       }
        this.setMetadataTag=true;
+      
+  
+      
     },
 
     //新增一条数据
@@ -506,11 +512,20 @@ export default {
     },
 
     setAllocation(){
-      this.getAllocationList();
+     
       this.setMetadataTag=true;
+      this.$nextTick(()=>{
+        this.$refs.dialogtable.clearSelection();
+      })
+      this.getAllocationList();
+      this.optionvalue=''
       // this.optionvalue = this.query.fileStorageType;
     },
-
+    //为行设置独有key
+  	selRowKey(row){
+      // console.log(row);
+      return row.id
+    },
     getAllocationList(){
       getAllocationDetail(this.page2.current,this.page2.pageSize,{
         fileStorage:''
@@ -527,10 +542,9 @@ export default {
             }
           })
         }
-      
         this.$nextTick(()=>{
             checkarr.forEach((ele)=>{
-               this.$refs.dialogtable.toggleRowSelection(ele);
+               this.$refs.dialogtable.toggleRowSelection(ele,true);
             })
         })
       })
@@ -614,6 +628,7 @@ export default {
     //回显选择
     changeType(val){
       this.page2.current = 1;
+      this.$refs.dialogtable.clearSelection();
       this.getAllocationList()
  
     }