update：更新

src/engine/view/edit-view2-engine.ts

@@ -135,8 +135,10 @@ export default class EditView2Engine extends EditViewEngine {
         const navPos: any = Object.values(this.view.layoutModelDetails).find((item: any) => {
             return item.predefinedType === "NAV_POS";
         });
+        if (navPos) {
             navPos.navData = data;
         }
+    }
 
     /**
      * 获取关系

src/engine/view/edit-view3-engine.ts

@@ -135,8 +135,10 @@ export default class EditView3Engine extends EditViewEngine {
         const navPos: any = Object.values(this.view.layoutModelDetails).find((item: any) => {
             return item.predefinedType === "NAV_POS";
         });
+        if (navPos) {
             navPos.navData = data;
         }
+    }
 
     /**
      * 获取关系

src/engine/view/edit-view4-engine.ts

@@ -135,8 +135,10 @@ export default class EditView4Engine extends EditViewEngine {
         const navPos: any = Object.values(this.view.layoutModelDetails).find((item: any) => {
             return item.predefinedType === "NAV_POS";
         });
+        if (navPos) {
             navPos.navData = data;
         }
+    }
 
     /**
      * 获取关系

src/engine/view/exp-view-engine.ts

@@ -163,8 +163,10 @@ export class ExpViewEngine extends ViewEngine {
         const navPos: any = Object.values(this.view.layoutModelDetails).find((item: any) => {
             return item.predefinedType === "NAV_POS";
         });
+        if (navPos) {
             navPos.navData = data;
         }
+    }
 
     /**
      * 处理导航栏数据部件事件