From 6480b753a2f38e68c315fb25653ed3b3587da5f9 Mon Sep 17 00:00:00 2001
From: Lars Brubaker <larsbrubaker@gmail.com>
Date: Wed, 23 Sep 2015 09:51:05 -0700
Subject: [PATCH] null during threading protection.

---
 VersionManagement/WebRequestHandler.cs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/VersionManagement/WebRequestHandler.cs b/VersionManagement/WebRequestHandler.cs
index 82b947229..02d5c1e85 100644
--- a/VersionManagement/WebRequestHandler.cs
+++ b/VersionManagement/WebRequestHandler.cs
@@ -115,9 +115,10 @@ namespace MatterHackers.MatterControl.VersionManagement
 
 		protected void OnRequestSuceeded(ResponseType responseItem)
 		{
-			if (RequestSucceeded != null)
+			EventHandler<ResponseSuccessEventArgs<ResponseType>> tempHandler = RequestSucceeded;
+			if (tempHandler != null)
 			{
-				RequestSucceeded(this, new ResponseSuccessEventArgs<ResponseType>() { ResponseItem = responseItem });
+				tempHandler(this, new ResponseSuccessEventArgs<ResponseType>() { ResponseItem = responseItem });
 			}
 		}
 		protected void SendRequest()