第二窗口传值

fis/Helpers/AvaloniaCefBrowserHelper.cs

@@ -68,5 +68,7 @@ namespace fis.Win.Dev.Helpers
                 return _browser;
             }
         }
+
+        public static AvaloniaCefBrowser SecondWindowBrowser{ get; set; }
     }
 }

fis/Managers/Ultra3DManager.cs

@@ -96,7 +96,7 @@ namespace fis.Win.Dev.Managers
         private void MDFileReady(string key)
         {
             var callString = PlatFormHelper.GetMethodStr("externalNotification", TargetMethodName.MdlFileLoaded, new List<string>() { key});
-            AvaloniaCefBrowserHelper.browser?.ExecuteJavaScript(callString, null, 0);
+            AvaloniaCefBrowserHelper.SecondWindowBrowser?.ExecuteJavaScript(callString, null, 0);
         }