From 28d9289116436555a41f6b2280b6fa4d3bf3b2a5 Mon Sep 17 00:00:00 2001
From: Matt Ward <ward.matt@gmail.com>
Date: Sun, 14 Oct 2012 11:10:53 +0100
Subject: [PATCH] Fix unhandled exception if code coverage results file does
 not exist.

Show error message in code coverage pad's text editor if the code coverage file does not exist.
---
 .../Project/Src/CodeCoverageControl.cs            | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/src/AddIns/Analysis/CodeCoverage/Project/Src/CodeCoverageControl.cs b/src/AddIns/Analysis/CodeCoverage/Project/Src/CodeCoverageControl.cs
index ffecfce32e..5ed85b70ac 100644
--- a/src/AddIns/Analysis/CodeCoverage/Project/Src/CodeCoverageControl.cs
+++ b/src/AddIns/Analysis/CodeCoverage/Project/Src/CodeCoverageControl.cs
@@ -318,7 +318,9 @@ namespace ICSharpCode.CodeCoverage
 		void OpenFile(string fileName, int line, int column)
 		{
 			if (fileName != textEditorFileName) {
-				textEditor.Load(fileName);
+				if (!TryLoadFileIntoTextEditor(fileName)) {
+					return;
+				}
 				textEditor.SyntaxHighlighting = GetSyntaxHighlighting(fileName);
 			}
 			textEditor.ScrollToEnd();
@@ -327,6 +329,17 @@ namespace ICSharpCode.CodeCoverage
 			CodeCoverageService.ShowCodeCoverage(new AvalonEditTextEditorAdapter(textEditor), fileName);
 		}
 		
+		bool TryLoadFileIntoTextEditor(string fileName)
+		{
+			if (!File.Exists(fileName)) {
+				textEditor.Text = String.Format("File does not exist '{0}'.", fileName);
+				return false;
+			}
+			
+			textEditor.Load(fileName);
+			return true;
+		}
+		
 		IHighlightingDefinition GetSyntaxHighlighting(string fileName)
 		{
 			return HighlightingManager.Instance.GetDefinitionByExtension(Path.GetExtension(fileName));