update ---

src/components/DialogJustForm.vue

@@ -142,6 +142,7 @@ export default {
     const savedDatalist = {};
     const cachedList = {};
     const watchList = [];
+    const promiseChain = {};
 
     this.configs.form.rows.forEach((row) => {
       row.forEach((col) => {
@@ -152,8 +153,8 @@ export default {
           savedDatalist[col.prop] = [];
         }
 
-        if (col.fetchData && typeof col.fetchData === "function") {
-          col.fetchData().then(({ data: res }) => {
+        if (col.fetchData && typeof col.fetchData === "function" && !col.fetchDataWait) {
+          const ps = col.fetchData().then(({ data: res }) => {
             if (res.code === 0) {
               if ("list" in res.data) {
                 if ("injectTo" in col) {
@@ -196,6 +197,8 @@ export default {
             }
             // dataForm[col.prop] = col.default ?? null; // not perfect!
           });
+
+          promiseChain[col.prop] = ps;
         } else if (col.fetchTreeData && typeof col.fetchTreeData === "function") {
           // 获取设备类型时触发的，用于前端构建属性结构，约定，parentId 为0时是顶级节点
           col.fetchTreeData().then(({ data: res }) => {
@@ -220,6 +223,7 @@ export default {
       savedDatalist,
       cachedList,
       watchList,
+      promiseChain,
       detailMode: false,
       baseDialogConfig: null,
       defaultQuillConfig: {
@@ -278,8 +282,14 @@ export default {
         if ("toggleFetchData" in col) {
           const unwatch = this.$watch(
             () => this.dataForm[col.toggleFetchData],
-            (carId) => {
-              col.fetchData(carId).then(({ data: res }) => {
+            (val) => {
+              const { search, get } = col.fetchDataParam; // 伴随着 toggleFetchData 出现的
+              const chosenObject = this.cachedList[col.toggleFetchData]?.find((i) => i[search] === val);
+              const paramValue = chosenObject ? chosenObject[get] : "";
+              console.log("((( chosenObject )))", chosenObject);
+
+              col.fetchData(paramValue).then(({ data: res }) => {
+                console.log("((( col.fetchData )))", paramValue, data);
                 if (res.code === 0) {
                   if ("list" in res.data) {
                     if ("injectTo" in col) this.$set(this.cachedList, col.prop, res.data.list);