树表格请求数据刷新后已经展开的节点需保持展开状态

io.sc.platform.core.frontend/src/platform/components/grid/WGrid.vue

@@ -882,7 +882,7 @@ const buttonObj = reactive({
 const expandFun = (arr, treeExpand) => {
   arr.forEach((item) => {
     if (props.tree && item.children && item.children.length > 0) {
-      item.expand = !treeExpand;
+      item[rowDataExtraPropertyName.expand] = !treeExpand;
       expandFun(item.children, treeExpand);
     }
   });
@@ -1379,7 +1379,7 @@ const rowDbClick = (evt, row, index) => {
   } else if (!Tools.isEmpty(row) && props.dbClickOperation === buttonObj.clone.name) {
     clone(row);
   } else if (!Tools.isEmpty(row) && props.dbClickOperation === buttonObj.expand.name) {
-    row['expand'] = Tools.isEmpty(row['expand']) ? true : !row['expand'];
+    row[rowDataExtraPropertyName.expand] = Tools.isEmpty(row[rowDataExtraPropertyName.expand]) ? true : !row[rowDataExtraPropertyName.expand];
   } else {
     view();
   }
@@ -1505,6 +1505,19 @@ const requestHandler = async (ops) => {
   });
   return resp;
 };
+
+const expandDatas = <any>[];
+const extractExpandStatus = (arr) => {
+  arr.forEach((item) => {
+    if (item[rowDataExtraPropertyName.expand]) {
+      expandDatas.push(item[props.primaryKey]);
+    }
+    if (item.children?.length > 0) {
+      extractExpandStatus(item.children);
+    }
+  });
+};
+
 const onRequest = async (ops: any) => {
   state.loading = true;
   const resp: any = await requestHandler(ops);
@@ -1525,6 +1538,10 @@ const onRequest = async (ops: any) => {
       table.rows = [];
     }
   } else if (resp && resp.data && props.tree) {
+    if (!table.treeExpand && table.rows.length > 0) {
+      expandDatas.splice(0, expandDatas.length);
+      extractExpandStatus(toRaw(table.rows));
+    }
     const responseData = resp.data;
     if (Array.isArray(responseData)) {
       state.pagination.rowsNumber = responseData.length;
@@ -1579,8 +1596,12 @@ const initRowDataExtraProperty = (rowData) => {
   rowData[rowDataExtraPropertyName.rowKey] = Tools.uuid();
   rowData[rowDataExtraPropertyName.ticked] = rowData[rowDataExtraPropertyName.ticked] || false;
   rowData[rowDataExtraPropertyName.selected] = rowData[rowDataExtraPropertyName.selected] || false;
-  if (props.tree && Tools.isEmpty(rowData[rowDataExtraPropertyName.expand])) {
-    rowData[rowDataExtraPropertyName.expand] = false;
+  if (props.tree) {
+    if (expandDatas.length > 0 && expandDatas.includes(rowData[props.primaryKey])) {
+      rowData[rowDataExtraPropertyName.expand] = true;
+    } else if (Tools.isEmpty(rowData[rowDataExtraPropertyName.expand])) {
+      rowData[rowDataExtraPropertyName.expand] = false;
+    }
   }
 };
 /**