diff --git a/v2rayN/v2rayN/Forms/SubSettingControl.cs b/v2rayN/v2rayN/Forms/SubSettingControl.cs
index a3f09593..9836be5d 100644
--- a/v2rayN/v2rayN/Forms/SubSettingControl.cs
+++ b/v2rayN/v2rayN/Forms/SubSettingControl.cs
@@ -54,10 +54,7 @@ namespace v2rayN.Forms
                 subItem.url = string.Empty;
             }
 
-            if (OnButtonClicked != null)
-            {
-                OnButtonClicked(sender, e);
-            }
+            OnButtonClicked?.Invoke(sender, e);
         }
     }
 }
diff --git a/v2rayN/v2rayN/Handler/V2rayHandler.cs b/v2rayN/v2rayN/Handler/V2rayHandler.cs
index 65e73792..61d59bf6 100644
--- a/v2rayN/v2rayN/Handler/V2rayHandler.cs
+++ b/v2rayN/v2rayN/Handler/V2rayHandler.cs
@@ -202,14 +202,11 @@ namespace v2rayN.Handler
         /// <summary>
         /// 消息委托
         /// </summary>
-        /// <param name="notify"></param>
-        /// <param name="msg"></param>
-        private void ShowMsg(bool notify, string msg)
+        /// <param name="updateToTrayTooltip">是否更新托盘图标的工具提示</param>
+        /// <param name="msg">输出到日志框</param>
+        private void ShowMsg(bool updateToTrayTooltip, string msg)
         {
-            if (ProcessEvent != null)
-            {
-                ProcessEvent(notify, msg);
-            }
+            ProcessEvent?.Invoke(updateToTrayTooltip, msg);
         }
 
         private void KillProcess(Process p)