修复bug

src/views/tender/bidd/index.vue

@@ -17,7 +17,7 @@
               </el-form-item>
 
               <el-form-item>
-                <el-button type="primary" @click="toggleExpandAll">{{ isExpandAll ? '一键收起' : '一键展开' }}</el-button>
+                <el-button type="primary" @click="handleToggleExpandAll">{{ isExpandAll ? '一键收起' : '一键展开' }}</el-button>
               </el-form-item>
 
               <el-form-item>
@@ -58,7 +58,16 @@
           </el-card>
         </transition>
         <el-card shadow="never" class="mb8">
-          <el-table ref="tableRef" v-loading="loading" :data="tableData" row-key="id" border lazy default-expand-all>
+          <el-table
+            ref="tableRef"
+            v-loading="loading"
+            :data="tableData"
+            row-key="id"
+            border
+            lazy
+            :default-expand-all="isExpandAll"
+            :tree-props="{ children: 'children', hasChildren: 'hasChildren' }"
+          >
             <el-table-column prop="num" label="编号" />
             <el-table-column prop="name" label="工程或费用名称" />
             <el-table-column prop="unit" label="单位" />
@@ -159,12 +168,16 @@ const changeVersions = (value) => {
 const changeSheet = (val: any) => {
   getTableData();
 };
-//展开树
-const toggleExpandAll = () => {
+
+const handleToggleExpandAll = () => {
   isExpandAll.value = !isExpandAll.value;
-  console.log(isExpandAll.value);
-  tableData.value.forEach((row) => {
-    tableRef.value.toggleRowExpansion(row, isExpandAll.value);
+  toggleExpandAll(tableData.value, isExpandAll.value);
+};
+//展开树
+const toggleExpandAll = (data: any[], status: boolean) => {
+  data.forEach((item) => {
+    tableRef.value[0]?.toggleRowExpansion(item, status);
+    if (item.children && item.children.length > 0) toggleExpandAll(item.children, status);
   });
 };