diff --git a/web/App_Code/api/transfer_registerController.cs b/web/App_Code/api/transfer_registerController.cs
index bb4deab..3c17bd8 100644
--- a/web/App_Code/api/transfer_registerController.cs
+++ b/web/App_Code/api/transfer_registerController.cs
@@ -417,7 +417,7 @@ public class transfer_registerController : ApiController
                 d.demo,
                 reg_time = o.reg_time // 報名日期
             }))
-            .ToList()
+            .AsEnumerable()  // 只在需要內存計算前轉換
             .Select(x => new {
                 x.order_no,
                 x.activity_num,
@@ -1054,7 +1054,7 @@ public class transfer_registerController : ApiController
                 d.price,
                 paid = d.pro_order_record.Select(r => r.price).DefaultIfEmpty(0).Sum()
             }))
-            .ToList()
+            .AsEnumerable()  // 只在需要內存計算前轉換
             .Select(x => new {
                 x.f_num,
                 x.follower_name,