From db0f44d867cc07257820a881744925a3ea059677 Mon Sep 17 00:00:00 2001
From: Poet <yangkunjuly@outlook.com>
Date: Fri, 7 May 2021 12:34:29 +0800
Subject: [PATCH] =?UTF-8?q?=E7=94=A8=E6=88=B7=E7=A6=BB=E7=BA=BF=E6=9B=B4?=
 =?UTF-8?q?=E6=96=B0onlineUsers=E7=BC=93=E5=AD=98bug=EF=BC=88ForEach?=
 =?UTF-8?q?=E4=B8=AD=E4=BF=AE=E6=94=B9=E5=85=83=E7=B4=A0=EF=BC=89?=
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---
 backend/Dilon.Core/Hubs/ChatHub.cs | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/backend/Dilon.Core/Hubs/ChatHub.cs b/backend/Dilon.Core/Hubs/ChatHub.cs
index 815ae83fb..c13001ef0 100644
--- a/backend/Dilon.Core/Hubs/ChatHub.cs
+++ b/backend/Dilon.Core/Hubs/ChatHub.cs
@@ -54,14 +54,16 @@ namespace Dilon.Core.Hubs
             {
                 var onlineUsers = await _cache.GetAsync<List<OnlineUser>>(CommonConst.CACHE_KEY_ONLINE_USER);
                 if (onlineUsers == null) return;
-                onlineUsers.ForEach(u =>
+
+                for (int i = 0; i < onlineUsers.Count; i++)
                 {
-                    if (u.ConnectionId == Context.ConnectionId)
+                    if (onlineUsers[i].ConnectionId == Context.ConnectionId)
                     {
-                        onlineUsers.Remove(u);
+                        onlineUsers.RemoveAt(i);
                         return;
                     }
-                });
+                }
+
                 await _cache.SetAsync(CommonConst.CACHE_KEY_ONLINE_USER, onlineUsers);
             }
         }
-- 
Gitee