From 433975003c334aeb34f24583d96c61e75d4f3d63 Mon Sep 17 00:00:00 2001
From: ikswi <ikswi@yandex.ru>
Date: Thu, 18 Apr 2024 09:50:55 +0400
Subject: [PATCH] =?UTF-8?q?=D0=BF=D0=B0=D1=80=D0=B0=20=D0=B8=D0=B7=D0=BC?=
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---
 AirFighter/AirFighter/FormMilitaryAircraftConfig.cs | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/AirFighter/AirFighter/FormMilitaryAircraftConfig.cs b/AirFighter/AirFighter/FormMilitaryAircraftConfig.cs
index 9653392..4e319a6 100644
--- a/AirFighter/AirFighter/FormMilitaryAircraftConfig.cs
+++ b/AirFighter/AirFighter/FormMilitaryAircraftConfig.cs
@@ -41,7 +41,14 @@ public partial class FormMilitaryAircraftConfig : Form
     /// <param name="militaryAircraftDelegate"></param>
     public void AddEvent(Action<DrawningMilitaryAircraft> militaryAircraftDelegate)
     {
-        MilitaryAircraftDelegate += militaryAircraftDelegate;
+        if (MilitaryAircraftDelegate != null)
+        {
+            MilitaryAircraftDelegate = militaryAircraftDelegate;
+        }
+        else
+        {
+            MilitaryAircraftDelegate += militaryAircraftDelegate;
+        }
     }
 
     /// <summary>