From d6a98c3f63c2acc76e01477829691ecf3d47b724 Mon Sep 17 00:00:00 2001
From: sta <sta.blockhead@gmail.com>
Date: Thu, 27 Jan 2022 21:07:29 +0900
Subject: [PATCH] [Modify] Add a null check

---
 Example3/Chat.cs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Example3/Chat.cs b/Example3/Chat.cs
index 31f718f8..bfc43183 100644
--- a/Example3/Chat.cs
+++ b/Example3/Chat.cs
@@ -40,6 +40,9 @@ namespace Example3
 
     protected override void OnClose (CloseEventArgs e)
     {
+      if (_name == null)
+        return;
+
       var fmt = "{0} got logged off...";
       var msg = String.Format (fmt, _name);