From a2c04e0bfdf7a1a14b688bec9286e28f34fc9db8 Mon Sep 17 00:00:00 2001
From: Tim Young <tim.young@lightsys.org>
Date: Tue, 13 Jun 2017 16:53:06 -0500
Subject: [PATCH] fix invalid access blowout.  Found when trying to get it to
 run on Linux

---
 EduNetworkBuilder/VLANConfig.cs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/EduNetworkBuilder/VLANConfig.cs b/EduNetworkBuilder/VLANConfig.cs
index 2b437a7..eae6cef 100644
--- a/EduNetworkBuilder/VLANConfig.cs
+++ b/EduNetworkBuilder/VLANConfig.cs
@@ -54,7 +54,10 @@ namespace EduNetworkBuilder
             if (dgv_VLANNames.Columns.Count > 0)
             {
                 dgv_VLANNames.Columns[0].ReadOnly = LockedNames;
-                dgv_VLANNames.Columns[1].ReadOnly = LockedNames;
+                if (theNet.VLANPacketColors && dgv_VLANNames.Columns.Count > 1)
+                {
+                    dgv_VLANNames.Columns[1].ReadOnly = LockedNames;
+                }
                 if(theNet.VLANPacketColors && dgv_VLANNames.Columns.Count > 2)
                 {
                     dgv_VLANNames.Columns[2].ReadOnly = LockedNames;