Update to AvalonEdit commit a4f053c2d.

src/AddIns/DisplayBindings/AvalonEdit.AddIn/Src/SharpDevelopCompletionWindow.cs

@@ -45,7 +45,9 @@ namespace ICSharpCode.AvalonEdit.AddIn
 			}
 			set {
 				var itemAdapters = this.CompletionList.CompletionData.Cast<CodeCompletionDataAdapter>();
-				this.CompletionList.SelectedItem = itemAdapters.FirstOrDefault(a => a.Item == value);
+				var item = itemAdapters.FirstOrDefault(a => a.Item == value);
+				this.CompletionList.SelectedItem = item;
+				this.CompletionList.ScrollIntoView(item);
 			}
 		}
 		

src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit.Tests/ICSharpCode.AvalonEdit.Tests.csproj

@@ -46,8 +46,8 @@
     <Optimize>False</Optimize>
     <CheckForOverflowUnderflow>True</CheckForOverflowUnderflow>
     <BaseIntermediateOutputPath>obj\</BaseIntermediateOutputPath>
-    <DefineDebug />
-    <DefineTrace />
+    <DefineDebug>True</DefineDebug>
+    <DefineTrace>True</DefineTrace>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
     <DebugSymbols>false</DebugSymbols>
@@ -55,7 +55,7 @@
     <Optimize>True</Optimize>
     <CheckForOverflowUnderflow>False</CheckForOverflowUnderflow>
     <BaseIntermediateOutputPath>obj\</BaseIntermediateOutputPath>
-    <DefineTrace />
+	<DefineTrace>True</DefineTrace>
   </PropertyGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.Targets" />
   <ItemGroup>

src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/CodeCompletion/CompletionList.cs

@@ -192,6 +192,10 @@ namespace ICSharpCode.AvalonEdit.CodeCompletion
 		/// <summary>
 		/// Gets/Sets the selected item.
 		/// </summary>
+		/// <remarks>
+		/// The setter of this property does not scroll to the selected item.
+		/// You might want to also call <see cref="ScrollIntoView"/>.
+		/// </remarks>
 		public ICompletionData SelectedItem {
 			get {
 				return (listBox != null ? listBox.SelectedItem : null) as ICompletionData;
@@ -199,11 +203,22 @@ namespace ICSharpCode.AvalonEdit.CodeCompletion
 			set {
 				if (listBox == null && value != null)
 					ApplyTemplate();
-				listBox.SelectedItem = value;
-				listBox.ScrollIntoView(value);
+				if (listBox != null) // may still be null if ApplyTemplate fails, or if listBox and value both are null
+					listBox.SelectedItem = value;
 			}
 		}
 		
+		/// <summary>
+		/// Scrolls the specified item into view.
+		/// </summary>
+		public void ScrollIntoView(ICompletionData item)
+		{
+			if (listBox == null)
+				ApplyTemplate();
+			if (listBox != null)
+				listBox.ScrollIntoView(item);
+		}
+		
 		/// <summary>
 		/// Occurs when the SelectedItem property changes.
 		/// </summary>
@@ -370,7 +385,7 @@ namespace ICSharpCode.AvalonEdit.CodeCompletion
 				if (itemText.IndexOf(query, StringComparison.InvariantCultureIgnoreCase) >= 0)
 					return 2;
 			}
-				
+			
 			if (!camelCaseMatch.HasValue)
 				camelCaseMatch = CamelCaseMatch(itemText, query);
 			if (camelCaseMatch == true)

src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/HighlightingColorizer.cs

@@ -266,7 +266,7 @@ namespace ICSharpCode.AvalonEdit.Highlighting
 				));
 			}
 			if(color.Underline ?? false)
-               element.TextRunProperties.SetTextDecorations(TextDecorations.Underline);           
+				element.TextRunProperties.SetTextDecorations(TextDecorations.Underline);
 		}
 		
 		/// <summary>

src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/ICSharpCode.AvalonEdit.csproj

@@ -49,8 +49,8 @@
     <CheckForOverflowUnderflow>True</CheckForOverflowUnderflow>
     <BaseIntermediateOutputPath>obj\</BaseIntermediateOutputPath>
     <DebugType>Full</DebugType>
-    <DefineDebug/>
-    <DefineTrace/>
+    <DefineDebug>True</DefineDebug>
+    <DefineTrace>True</DefineTrace>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
     <OutputPath>bin\Release\</OutputPath>
@@ -59,7 +59,7 @@
     <Optimize>True</Optimize>
     <CheckForOverflowUnderflow>False</CheckForOverflowUnderflow>
     <DebugType>Full</DebugType>
-    <DefineTrace/>
+    <DefineTrace>True</DefineTrace>
   </PropertyGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.Targets" />
   <ItemGroup>

src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Rendering/TextView.cs

@@ -596,7 +596,27 @@ namespace ICSharpCode.AvalonEdit.Rendering
 			set { SetValue(LinkTextBackgroundBrushProperty, value); }
 		}
 		#endregion
-		
+
+		/// <summary>
+		/// LinkTextUnderlinedBrush dependency property.
+		/// </summary>
+		public static readonly DependencyProperty LinkTextUnderlineProperty =
+			DependencyProperty.Register("LinkTextUnderline", typeof(bool), typeof(TextView),
+										new FrameworkPropertyMetadata(true));
+
+		/// <summary>
+		/// Gets/sets whether to underline link texts.
+		/// </summary>
+		/// <remarks>
+		/// Note that when setting this property to false, link text remains clickable and the LinkTextForegroundBrush (if any) is still applied.
+		/// Set TextEditorOptions.EnableHyperlinks and EnableEmailHyperlinks to false to disable links completely.
+		/// </remarks>
+		public bool LinkTextUnderline
+		{
+			get { return (bool)GetValue(LinkTextUnderlineProperty); }
+			set { SetValue(LinkTextUnderlineProperty, value); }
+		}
+
 		#region Redraw methods / VisualLine invalidation
 		/// <summary>
 		/// Causes the text editor to regenerate all visual lines.
@@ -1989,7 +2009,8 @@ namespace ICSharpCode.AvalonEdit.Rendering
 			} else if (e.Property == Control.ForegroundProperty
 			           || e.Property == TextView.NonPrintableCharacterBrushProperty
 			           || e.Property == TextView.LinkTextBackgroundBrushProperty
-			           || e.Property == TextView.LinkTextForegroundBrushProperty)
+			           || e.Property == TextView.LinkTextForegroundBrushProperty
+			           || e.Property == TextView.LinkTextUnderlineProperty)
 			{
 				// changing brushes requires recreating the cached elements
 				RecreateCachedElements();

src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Rendering/VisualLineLinkText.cs

@@ -64,7 +64,8 @@ namespace ICSharpCode.AvalonEdit.Rendering
 		{
 			this.TextRunProperties.SetForegroundBrush(context.TextView.LinkTextForegroundBrush);
 			this.TextRunProperties.SetBackgroundBrush(context.TextView.LinkTextBackgroundBrush);
-			this.TextRunProperties.SetTextDecorations(TextDecorations.Underline);
+			if (context.TextView.LinkTextUnderline)
+				this.TextRunProperties.SetTextDecorations(TextDecorations.Underline);
 			return base.CreateTextRun(startVisualColumn, context);
 		}