From 9d7f3ee5024258b931d74248d189608c105aaf1f Mon Sep 17 00:00:00 2001
From: Heejae Chang <hechang@microsoft.com>
Date: Tue, 4 Aug 2015 14:20:06 -0700
Subject: [PATCH] guard from null exception

---
 .../TableDataSource/VisualStudioDiagnosticListTable.cs       | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/VisualStudio/Core/Def/Implementation/TableDataSource/VisualStudioDiagnosticListTable.cs b/src/VisualStudio/Core/Def/Implementation/TableDataSource/VisualStudioDiagnosticListTable.cs
index c88b2511d7b..7eb1e2ea1ba 100644
--- a/src/VisualStudio/Core/Def/Implementation/TableDataSource/VisualStudioDiagnosticListTable.cs
+++ b/src/VisualStudio/Core/Def/Implementation/TableDataSource/VisualStudioDiagnosticListTable.cs
@@ -49,6 +49,11 @@ internal class VisualStudioDiagnosticListTable : VisualStudioBaseDiagnosticListT
 
         private ITableDataSource GetCurrentDataSource()
         {
+            if (_errorList == null)
+            {
+                return _liveTableSource;
+            }
+
             return _errorList.AreOtherErrorSourceEntriesShown ? (ITableDataSource)_liveTableSource : _buildTableSource;
         }
 
-- 
GitLab