From 30ebeb780347d7cfd076edac9a0ccf90c7edc7b9 Mon Sep 17 00:00:00 2001
From: wei <kaede@kaededeMacBook-Air.local>
Date: 星期一, 30 八月 2021 10:39:23 +0800
Subject: [PATCH] 新风单控

---
 HDL_ON/UI/UI0-Public/PublicAssmebly.cs |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/HDL_ON/UI/UI0-Public/PublicAssmebly.cs b/HDL_ON/UI/UI0-Public/PublicAssmebly.cs
index ffff590..33dacc8 100644
--- a/HDL_ON/UI/UI0-Public/PublicAssmebly.cs
+++ b/HDL_ON/UI/UI0-Public/PublicAssmebly.cs
@@ -513,7 +513,11 @@
                 if (showedTime.AddSeconds(30) > DateTime.Now)
                 {
                     thread.Abort();
-                    waitPage.RemoveFromParent();
+                    if (waitPage != null)
+                    {
+                        waitPage.RemoveFromParent();
+                        waitPage = null;
+                    }
                 }
             };
             thread.Start();

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