From 327428aa1164b8a8f0b239cd14c6da21af52c099 Mon Sep 17 00:00:00 2001
From: Siegfried Pammer <siegfriedpammer@gmail.com>
Date: Sun, 24 Nov 2019 20:59:56 +0100
Subject: [PATCH] Fix #1810: ArgumentNullException in
 DecompilerTextView.ShowText

---
 ILSpy/TextView/DecompilerTextView.cs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ILSpy/TextView/DecompilerTextView.cs b/ILSpy/TextView/DecompilerTextView.cs
index 0892952a6..667aa09ba 100644
--- a/ILSpy/TextView/DecompilerTextView.cs
+++ b/ILSpy/TextView/DecompilerTextView.cs
@@ -567,7 +567,8 @@ namespace ICSharpCode.ILSpy.TextView
 				this.nextDecompilationRun.TaskCompletionSource.TrySetCanceled();
 				this.nextDecompilationRun = null;
 			}
-			textOutput.Title = string.Join(", ", nodes.Select(n => n.ToString()));
+			if (nodes != null && string.IsNullOrEmpty(textOutput.Title))
+				textOutput.Title = string.Join(", ", nodes.Select(n => n.ToString()));
 			ShowOutput(textOutput, highlighting);
 			decompiledNodes = nodes;
 		}