From f69fd75759e2b8e5c06dd2b948b5c9360d80d1b2 Mon Sep 17 00:00:00 2001
From: John <jjenko@volian.com>
Date: Tue, 24 Aug 2021 14:01:40 +0000
Subject: [PATCH] B2021-093 null reference check when looking for child RO
 values

---
 PROMS/VEPROMS.CSLA.Library/Config/ROFSTLookup.cs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/PROMS/VEPROMS.CSLA.Library/Config/ROFSTLookup.cs b/PROMS/VEPROMS.CSLA.Library/Config/ROFSTLookup.cs
index da116eb5..05312cb6 100644
--- a/PROMS/VEPROMS.CSLA.Library/Config/ROFSTLookup.cs
+++ b/PROMS/VEPROMS.CSLA.Library/Config/ROFSTLookup.cs
@@ -304,13 +304,15 @@ namespace VEPROMS.CSLA.Library
 		public string GetParentChildROValue(rochild roc)
 		{
 			string roval = roc.value;
+			// B2021-093 Don't look for child RO values if "roval" is null
+			if (roval == null) return null;
 			// get the child (slave) information and set the rtnchld.value to the corresponding RO Value
 			int selChldIdx = MyDocVersionInfo.DocVersionConfig.SelectedSlave;
 			string childName = MyDocVersionInfo.DocVersionConfig.Unit_Name; 
 			string aplString = roval;
 			string ChldValue = "";
 			// if the RO Value contains Parent/Child values, parse out default value and the child (slave or unit specific) value
-			while (roval.Contains("<APL DefaultVal="))
+			while (roval != null && roval.Contains("<APL DefaultVal="))
 			{
 				int startCVIdx = roval.IndexOf("<APL DefaultVal=");
 				int EndCVidx = roval.IndexOf(" /APL>", startCVIdx);