Fixed some P/Invoke declarations where FxCop complained they weren't portable to 64bit and some other complaints from FxCop.

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@501 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/AddIns/BackendBindings/CSharpBinding/Project/Src/Parser/Parser.cs

@@ -87,7 +87,7 @@ namespace CSharpBinding.Parser
 		
 		public ICompilationUnit Parse(IProjectContent projectContent, string fileName, string fileContent)
 		{
-			using (ICSharpCode.NRefactory.Parser.IParser p = ICSharpCode.NRefactory.Parser.ParserFactory.CreateParser(ICSharpCode.NRefactory.Parser.SupportedLanguages.CSharp, new StringReader(fileContent))) {
+			using (ICSharpCode.NRefactory.Parser.IParser p = ICSharpCode.NRefactory.Parser.ParserFactory.CreateParser(ICSharpCode.NRefactory.Parser.SupportedLanguage.CSharp, new StringReader(fileContent))) {
 				return Parse(p, fileName, projectContent);
 			}
 		}
@@ -120,7 +120,7 @@ namespace CSharpBinding.Parser
 		
 		public IResolver CreateResolver()
 		{
-			return new ICSharpCode.SharpDevelop.Dom.NRefactoryResolver.NRefactoryResolver(ICSharpCode.NRefactory.Parser.SupportedLanguages.CSharp);
+			return new ICSharpCode.SharpDevelop.Dom.NRefactoryResolver.NRefactoryResolver(ICSharpCode.NRefactory.Parser.SupportedLanguage.CSharp);
 		}
 		///////// IParser Interface END
 	}

src/AddIns/BackendBindings/VBNetBinding/Project/Src/Parser/Parser.cs

@@ -98,7 +98,7 @@ namespace VBNetBinding.Parser
 
 		public ICompilationUnit Parse(IProjectContent projectContent, string fileName, string fileContent)
 		{
-			using (ICSharpCode.NRefactory.Parser.IParser p = ICSharpCode.NRefactory.Parser.ParserFactory.CreateParser(ICSharpCode.NRefactory.Parser.SupportedLanguages.VBNet, new StringReader(fileContent))) {
+			using (ICSharpCode.NRefactory.Parser.IParser p = ICSharpCode.NRefactory.Parser.ParserFactory.CreateParser(ICSharpCode.NRefactory.Parser.SupportedLanguage.VBNet, new StringReader(fileContent))) {
 				return Parse(p, fileName, projectContent);
 			}
 		}
@@ -143,7 +143,7 @@ namespace VBNetBinding.Parser
 
 		public IResolver CreateResolver()
 		{
-			return new ICSharpCode.SharpDevelop.Dom.NRefactoryResolver.NRefactoryResolver(ICSharpCode.NRefactory.Parser.SupportedLanguages.VBNet);
+			return new ICSharpCode.SharpDevelop.Dom.NRefactoryResolver.NRefactoryResolver(ICSharpCode.NRefactory.Parser.SupportedLanguage.VBNet);
 		}
 		///////// IParser Interface END
 	}

src/AddIns/DisplayBindings/FormDesigner/Project/Src/FormDesigner/DesignerLoader/DesignerLoaderProvider.cs

@@ -19,10 +19,10 @@ namespace ICSharpCode.FormDesigner
 	
 	public class NRefactoryDesignerLoaderProvider : IDesignerLoaderProvider
 	{
-		SupportedLanguages language;
+		SupportedLanguage language;
 		TextEditorControl textEditorControl;
 		
-		public NRefactoryDesignerLoaderProvider(SupportedLanguages language, TextEditorControl textEditorControl)
+		public NRefactoryDesignerLoaderProvider(SupportedLanguage language, TextEditorControl textEditorControl)
 		{
 			this.language = language;
 			this.textEditorControl = textEditorControl;

src/AddIns/DisplayBindings/FormDesigner/Project/Src/FormDesigner/DesignerLoader/NRefactoryDesignerLoader.cs

@@ -44,7 +44,7 @@ namespace ICSharpCode.FormDesigner
 		bool                  loading               = true;
 		IDesignerLoaderHost   designerLoaderHost    = null;
 		ITypeResolutionService typeResolutionService = null;
-		SupportedLanguages    language;
+		SupportedLanguage    language;
 		CodeDomProvider       provider = new Microsoft.CSharp.CSharpCodeProvider();
 		
 		TextEditorControl textEditorControl;
@@ -84,7 +84,7 @@ namespace ICSharpCode.FormDesigner
 			return base.IsReloadNeeded() || TextContent != lastTextContent;
 		}
 		
-		public NRefactoryDesignerLoader(SupportedLanguages language, TextEditorControl textEditorControl)
+		public NRefactoryDesignerLoader(SupportedLanguage language, TextEditorControl textEditorControl)
 		{
 			this.language = language;
 			this.textEditorControl = textEditorControl;

src/AddIns/DisplayBindings/FormDesigner/Project/Src/FormDesigner/FormDesignerSecondaryDisplayBinding.cs

@@ -135,11 +135,11 @@ namespace ICSharpCode.FormDesigner
 			
 			switch (fileExtension) {
 				case ".cs":
-					loader    = new NRefactoryDesignerLoaderProvider(SupportedLanguages.CSharp, ((ITextEditorControlProvider)viewContent).TextEditorControl);
+					loader    = new NRefactoryDesignerLoaderProvider(SupportedLanguage.CSharp, ((ITextEditorControlProvider)viewContent).TextEditorControl);
 					generator = new CSharpDesignerGenerator();
 					break;
 				case ".vb":
-					loader    = new NRefactoryDesignerLoaderProvider(SupportedLanguages.VBNet, ((ITextEditorControlProvider)viewContent).TextEditorControl);
+					loader    = new NRefactoryDesignerLoaderProvider(SupportedLanguage.VBNet, ((ITextEditorControlProvider)viewContent).TextEditorControl);
 					generator = new VBNetDesignerGenerator();
 					break;
 				case ".xfrm":

src/Libraries/ICSharpCode.TextEditor/Project/Src/Gui/CompletionWindow/AbstractCompletionWindow.cs

@@ -79,16 +79,21 @@ namespace ICSharpCode.TextEditor.Gui.CompletionWindow
 			Bounds = bounds;
 		}
 		
-		public readonly static int SW_SHOWNA = 8;
+		const int SW_SHOWNA = 8;
 		
 		[DllImport("user32")]
-		public static extern int ShowWindow(IntPtr hWnd, int nCmdShow);
+		static extern int ShowWindow(IntPtr hWnd, int nCmdShow);
+		
+		public static void ShowWindowWithoutFocus(Control control)
+		{
+			ShowWindow(control.Handle, SW_SHOWNA);
+		}
 		
 		protected void ShowCompletionWindow()
 		{
 			Owner = parentForm;
 			Enabled = true;
-			AbstractCompletionWindow.ShowWindow(base.Handle, AbstractCompletionWindow.SW_SHOWNA);
+			ShowWindowWithoutFocus(this);
 			
 			control.Focus();
 			

src/Libraries/ICSharpCode.TextEditor/Project/Src/Gui/CompletionWindow/DeclarationViewWindow.cs

@@ -61,7 +61,7 @@ namespace ICSharpCode.TextEditor.Gui.CompletionWindow
 		
 		public void ShowDeclarationViewWindow()
 		{
-			AbstractCompletionWindow.ShowWindow(base.Handle, AbstractCompletionWindow.SW_SHOWNA);
+			AbstractCompletionWindow.ShowWindowWithoutFocus(this);
 		}
 		
 		public void CloseDeclarationViewWindow()

src/Libraries/ICSharpCode.TextEditor/Project/Src/Gui/Ime.cs

@@ -41,9 +41,9 @@ namespace ICSharpCode.TextEditor
 		private static extern IntPtr ImmGetDefaultIMEWnd(IntPtr hWnd);
 		
 		[ DllImport("user32.dll") ]
-		private static extern int SendMessage(IntPtr hWnd, int msg, int wParam, COMPOSITIONFORM lParam);
+		private static extern IntPtr SendMessage(IntPtr hWnd, int msg, IntPtr wParam, COMPOSITIONFORM lParam);
 		[ DllImport("user32.dll") ]
-		private static extern int SendMessage(IntPtr hWnd, int msg, int wParam, LOGFONT lParam);
+		private static extern IntPtr SendMessage(IntPtr hWnd, int msg, IntPtr wParam, LOGFONT lParam);
 		
 		[ StructLayout(LayoutKind.Sequential) ]
 		private class COMPOSITIONFORM
@@ -71,6 +71,7 @@ namespace ICSharpCode.TextEditor
 		
 		private const int WM_IME_CONTROL = 0x0283;
 		
+		private const int IMC_SETCOMPOSITIONFONT = 0x000a;
 		private const int IMC_SETCOMPOSITIONWINDOW = 0x000c;
 		private IntPtr hIMEWnd;
 		private const int CFS_POINT = 0x0002;
@@ -93,7 +94,6 @@ namespace ICSharpCode.TextEditor
 			public byte lfPitchAndFamily = 0;
 			[ MarshalAs(UnmanagedType.ByValTStr, SizeConst=32) ] public string lfFaceName = null;
 		}
-		private const int IMC_SETCOMPOSITIONFONT = 0x000a;
 		
 		const byte FF_MODERN = 48;
 		const byte FIXED_PITCH = 1;
@@ -107,7 +107,7 @@ namespace ICSharpCode.TextEditor
 			SendMessage(
 			            hIMEWnd,
 			            WM_IME_CONTROL,
-			            IMC_SETCOMPOSITIONFONT,
+			            new IntPtr(IMC_SETCOMPOSITIONFONT),
 			            lf
 			            );
 		}
@@ -128,7 +128,7 @@ namespace ICSharpCode.TextEditor
 			SendMessage(
 			            hIMEWnd,
 			            WM_IME_CONTROL,
-			            IMC_SETCOMPOSITIONWINDOW,
+			            new IntPtr(IMC_SETCOMPOSITIONWINDOW),
 			            lParam
 			            );
 		}

src/Libraries/NRefactory/Project/Src/Parser/AST/General/Expressions/Expression.cs

@@ -72,7 +72,7 @@ namespace ICSharpCode.NRefactory.Parser.AST
 		
 		public override object AcceptVisitor(IASTVisitor visitor, object data)
 		{
-			return this;
+			return null;
 		}
 		
 		public override string ToString()

src/Libraries/NRefactory/Project/Src/Parser/AST/General/INullable.cs

@@ -5,9 +5,12 @@
 //     <version>$Revision$</version>
 // </file>
 
-public interface INullable
+namespace ICSharpCode.NRefactory.Parser.AST
 {
-	bool IsNull {
-		get;
+	public interface INullable
+	{
+		bool IsNull {
+			get;
+		}
 	}
 }

src/Libraries/NRefactory/Project/Src/Parser/ParserFactory.cs

@@ -12,7 +12,7 @@ using ICSharpCode.NRefactory.Parser.AST;
 
 namespace ICSharpCode.NRefactory.Parser
 {
-	public enum SupportedLanguages {
+	public enum SupportedLanguage {
 		CSharp,
 		VBNet
 	}
@@ -22,24 +22,24 @@ namespace ICSharpCode.NRefactory.Parser
 	/// </summary>
 	public class ParserFactory
 	{
-		public static ILexer CreateLexer(SupportedLanguages language, TextReader textReader)
+		public static ILexer CreateLexer(SupportedLanguage language, TextReader textReader)
 		{
 			switch (language) {
-				case SupportedLanguages.CSharp:
+				case SupportedLanguage.CSharp:
 					return new ICSharpCode.NRefactory.Parser.CSharp.Lexer(textReader);
-				case SupportedLanguages.VBNet:
+				case SupportedLanguage.VBNet:
 					return new ICSharpCode.NRefactory.Parser.VB.Lexer(textReader);
 			}
 			throw new System.NotSupportedException(language + " not supported.");
 		}
 		
-		public static IParser CreateParser(SupportedLanguages language, TextReader textReader)
+		public static IParser CreateParser(SupportedLanguage language, TextReader textReader)
 		{
 			ILexer lexer = CreateLexer(language, textReader);
 			switch (language) {
-				case SupportedLanguages.CSharp:
+				case SupportedLanguage.CSharp:
 					return new ICSharpCode.NRefactory.Parser.CSharp.Parser(lexer);
-				case SupportedLanguages.VBNet:
+				case SupportedLanguage.VBNet:
 					return new ICSharpCode.NRefactory.Parser.VB.Parser(lexer);
 			}
 			throw new System.NotSupportedException(language + " not supported.");
@@ -49,17 +49,15 @@ namespace ICSharpCode.NRefactory.Parser
 		{
 			return CreateParser(fileName, Encoding.UTF8);
 		}
+		
 		public static IParser CreateParser(string fileName, Encoding encoding)
 		{
-			switch (Path.GetExtension(fileName).ToUpper()) {
-				case ".CS":
-					return CreateParser(SupportedLanguages.CSharp, new StreamReader(fileName, encoding));
-				case ".VB":
-					return CreateParser(SupportedLanguages.VBNet, new StreamReader(fileName, encoding));
-			}
+			string ext = Path.GetExtension(fileName);
+			if (ext.Equals(".cs", StringComparison.InvariantCultureIgnoreCase))
+				return CreateParser(SupportedLanguage.CSharp, new StreamReader(fileName, encoding));
+			if (ext.Equals(".vb", StringComparison.InvariantCultureIgnoreCase))
+				return CreateParser(SupportedLanguage.VBNet, new StreamReader(fileName, encoding));
 			return null;
 		}
-		
-		
 	}
 }

src/Main/Base/Project/Src/Commands/VBConverter/CSharpConvertBuffer.cs

@@ -32,7 +32,7 @@ namespace ICSharpCode.SharpDevelop.Commands
 			IWorkbenchWindow window = WorkbenchSingleton.Workbench.ActiveWorkbenchWindow;
 			
 			if (window != null && window.ViewContent is IEditable) {
-				ICSharpCode.NRefactory.Parser.IParser p = ICSharpCode.NRefactory.Parser.ParserFactory.CreateParser(SupportedLanguages.VBNet, new StringReader(((IEditable)window.ViewContent).Text));
+				ICSharpCode.NRefactory.Parser.IParser p = ICSharpCode.NRefactory.Parser.ParserFactory.CreateParser(SupportedLanguage.VBNet, new StringReader(((IEditable)window.ViewContent).Text));
 				p.Parse();
 
 				if (p.Errors.count > 0) {

src/Main/Base/Project/Src/Commands/VBConverter/ConvertBuffer.cs

@@ -33,7 +33,7 @@ namespace ICSharpCode.SharpDevelop.Commands
 			
 			if (window != null && window.ViewContent is IEditable) {
 				
-				ICSharpCode.NRefactory.Parser.IParser p = ICSharpCode.NRefactory.Parser.ParserFactory.CreateParser(SupportedLanguages.CSharp, new StringReader(((IEditable)window.ViewContent).Text));
+				ICSharpCode.NRefactory.Parser.IParser p = ICSharpCode.NRefactory.Parser.ParserFactory.CreateParser(SupportedLanguage.CSharp, new StringReader(((IEditable)window.ViewContent).Text));
 				p.Parse();
 				if (p.Errors.count > 0) {
 					

src/Main/Base/Project/Src/Dom/NRefactoryResolver/NRefactoryResolver.cs

@@ -25,12 +25,12 @@ namespace ICSharpCode.SharpDevelop.Dom.NRefactoryResolver
 		ICSharpCode.NRefactory.Parser.LookupTableVisitor lookupTableVisitor;
 		IProjectContent projectContent = null;
 		
-		SupportedLanguages language;
+		SupportedLanguage language;
 		
 		int caretLine;
 		int caretColumn;
 		
-		public SupportedLanguages Language {
+		public SupportedLanguage Language {
 			get {
 				return language;
 			}
@@ -83,15 +83,15 @@ namespace ICSharpCode.SharpDevelop.Dom.NRefactoryResolver
 			}
 		}
 		
-		public NRefactoryResolver(SupportedLanguages language)
+		public NRefactoryResolver(SupportedLanguage language)
 		{
 			this.language = language;
 			this.projectContent = ParserService.CurrentProjectContent;
 			switch (language) {
-				case SupportedLanguages.CSharp:
+				case SupportedLanguage.CSharp:
 					languageProperties = LanguageProperties.CSharp;
 					break;
-				case SupportedLanguages.VBNet:
+				case SupportedLanguage.VBNet:
 					languageProperties = LanguageProperties.VBNet;
 					break;
 				default:
@@ -147,7 +147,7 @@ namespace ICSharpCode.SharpDevelop.Dom.NRefactoryResolver
 			}
 			
 			Expression expr = null;
-			if (language == SupportedLanguages.VBNet) {
+			if (language == SupportedLanguage.VBNet) {
 				if (expression == "") {
 					if ((expr = WithResolve()) == null) {
 						return null;
@@ -426,7 +426,7 @@ namespace ICSharpCode.SharpDevelop.Dom.NRefactoryResolver
 			}
 			int length = offset - startOffset;
 			string classDecl, endClassDecl;
-			if (language == SupportedLanguages.VBNet) {
+			if (language == SupportedLanguage.VBNet) {
 				classDecl = "Class A";
 				endClassDecl = "End Class\n";
 			} else {
@@ -583,7 +583,7 @@ namespace ICSharpCode.SharpDevelop.Dom.NRefactoryResolver
 		
 		Expression WithResolve()
 		{
-			if (language != SupportedLanguages.VBNet) {
+			if (language != SupportedLanguage.VBNet) {
 				return null;
 			}
 			Expression expr = null;
@@ -600,14 +600,14 @@ namespace ICSharpCode.SharpDevelop.Dom.NRefactoryResolver
 		
 		Expression SpecialConstructs(string expression)
 		{
-			if (language == SupportedLanguages.VBNet) {
+			if (language == SupportedLanguage.VBNet) {
 				// MyBase and MyClass are no expressions, only MyBase.Identifier and MyClass.Identifier
 				if ("mybase".Equals(expression, StringComparison.InvariantCultureIgnoreCase)) {
 					return new BaseReferenceExpression();
 				} else if ("myclass".Equals(expression, StringComparison.InvariantCultureIgnoreCase)) {
 					return new ClassReferenceExpression();
 				} // Global is handled in Resolve() because we don't need an expression for that
-			} else if (language == SupportedLanguages.CSharp) {
+			} else if (language == SupportedLanguage.CSharp) {
 				// generic type names are no expressions, only property access on them is an expression
 				if (expression.EndsWith(">")) {
 					FieldReferenceExpression expr = ParseExpression(expression + ".Prop") as FieldReferenceExpression;
@@ -856,7 +856,7 @@ namespace ICSharpCode.SharpDevelop.Dom.NRefactoryResolver
 		public ArrayList CtrlSpace(int caretLine, int caretColumn, string fileName, string fileContent)
 		{
 			ArrayList result = new ArrayList();
-			if (language == SupportedLanguages.VBNet) {
+			if (language == SupportedLanguage.VBNet) {
 				foreach (KeyValuePair<string, string> pair in TypeReference.GetPrimitiveTypesVB()) {
 					string primitive = Char.ToUpper(pair.Key[0]) + pair.Key.Substring(1);
 					if ("System." + primitive != pair.Value) {

src/Main/Base/Project/Src/Gui/BrowserDisplayBinding/HtmlViewPane.cs

@@ -67,8 +67,8 @@ namespace ICSharpCode.SharpDevelop.BrowserDisplayBinding
 		
 		public override void Dispose()
 		{
-			htmlViewPane.Dispose();
 			base.Dispose();
+			htmlViewPane.Dispose();
 		}
 		
 		public override void Load(string url)

src/Main/Base/Project/Src/Gui/Components/LocalizedPropertyGrid/LocalizedPropertyAttribute.cs

@@ -13,7 +13,7 @@ using System.Reflection;
 namespace ICSharpCode.SharpDevelop.Gui
 {
 	[AttributeUsage(AttributeTargets.Property, AllowMultiple=false, Inherited=true)]
-	public class LocalizedPropertyAttribute : Attribute
+	public sealed class LocalizedPropertyAttribute : Attribute
 	{
 		string name        = String.Empty;
 		string description = String.Empty;

src/Main/Base/Project/Src/Gui/Dialogs/NewFileDialog.cs

@@ -340,13 +340,13 @@ namespace ICSharpCode.SharpDevelop.Gui
 		public void SaveFile(string filename, string content, string languageName, bool showFile)
 		{
 			string parsedFileName = StringParser.Parse(filename);
-			createdFiles.Add(parsedFileName);
 			IWorkbenchWindow window = FileService.NewFile(Path.GetFileName(parsedFileName), StringParser.Parse(languageName), StringParser.Parse(content));
-			if (Path.IsPathRooted(parsedFileName)) {
-				window.ViewContent.Save(parsedFileName);
+			if (window != null) {
+				createdFiles.Add(parsedFileName);
+				if (Path.IsPathRooted(parsedFileName)) {
+					window.ViewContent.Save(parsedFileName);
+				}
 			}
-			
-			DialogResult = DialogResult.OK;
 		}
 		
 		string GenerateValidClassName(string className)

src/Main/Base/Project/Src/Gui/Pads/FileScout.cs

@@ -27,11 +27,11 @@ namespace ICSharpCode.SharpDevelop.Gui
 	class FileIcon
 	{
 		[DllImport("shell32.dll")]
-		static extern int SHGetFileInfo(string pszPath,
-												  uint dwFileAttributes,
-												  out SHFILEINFO psfi,
-												  uint cbfileInfo,
-												  SHGFI uFlags);
+		static extern IntPtr SHGetFileInfo(string pszPath,
+		                                   uint dwFileAttributes,
+		                                   out SHFILEINFO psfi,
+		                                   uint cbfileInfo,
+		                                   SHGFI uFlags);
 		
 		[StructLayout(LayoutKind.Sequential)]
 		struct SHFILEINFO
@@ -84,7 +84,7 @@ namespace ICSharpCode.SharpDevelop.Gui
 		Ramdisk     = 6
 	}
 	
-	public class DriveObject 
+	public class DriveObject
 	{
 		string text  = null;
 		string drive = null;
@@ -138,7 +138,7 @@ namespace ICSharpCode.SharpDevelop.Gui
 			return IconService.GetBitmap(IconService.GetImageForFile(fileName));
 		}
 		
-		public DriveObject(string drive) 
+		public DriveObject(string drive)
 		{
 			this.drive = drive;
 			
@@ -147,16 +147,16 @@ namespace ICSharpCode.SharpDevelop.Gui
 			switch(GetDriveType(drive)) {
 				case DriveType.Removeable:
 					text += " (Removeable)";
-				break;
+					break;
 				case DriveType.Fixed:
 					text += " (Fixed)";
-				break;
+					break;
 				case DriveType.Cdrom:
 					text += " (CD)";
-				break;
+					break;
 				case DriveType.Remote:
 					text += " (Remote)";
-				break;
+					break;
 			}
 		}
 		
@@ -188,7 +188,7 @@ namespace ICSharpCode.SharpDevelop.Gui
 			string key;
 			
 			// icon files and exe files can have their custom icons
-			if(Path.GetExtension(file).ToLower() == ".ico" || 
+			if(Path.GetExtension(file).ToLower() == ".ico" ||
 			   Path.GetExtension(file).ToLower() == ".exe") {
 				key = file;
 			} else {
@@ -362,7 +362,7 @@ namespace ICSharpCode.SharpDevelop.Gui
 		{
 			string[] files;
 			Items.Clear();
-		
+			
 			try {
 				if (Directory.Exists(path)) {
 					files = Directory.GetFiles(path);

src/Main/Base/Project/Src/Project/AbstractProject.cs

@@ -470,6 +470,8 @@ namespace ICSharpCode.SharpDevelop.Project
 		/// <summary>
 		/// Creates a new project content for this project.
 		/// This method should only be called by ParserService.LoadSolutionProjectsInternal()!
+		/// When overriding this method, you should call the base implementation first
+		/// to get an uninitialized ParseProjectContent.
 		/// </summary>
 		public virtual ParseProjectContent CreateProjectContent()
 		{

src/Main/Base/Project/Src/Project/Converter/PrjxToSolutionProject.cs

@@ -131,9 +131,9 @@ namespace ICSharpCode.SharpDevelop.Project.Converter
 				return CanocializeFileName(fileName) + Path.DirectorySeparatorChar;
 			}
 			
-			public string Negate(string boolString)
+			public string Negate(string booleanString)
 			{
-				return (!bool.Parse(boolString)).ToString();
+				return (!bool.Parse(booleanString)).ToString();
 			}
 			
 			public string GetFileName(string fileName)

src/Main/Base/Project/Src/Services/File/FileService.cs

@@ -71,8 +71,10 @@ namespace ICSharpCode.Core
 			public void Invoke(string fileName)
 			{
 				IViewContent newContent = binding.CreateContentForFile(fileName);
-				DisplayBindingService.AttachSubWindows(newContent);
-				WorkbenchSingleton.Workbench.ShowView(newContent);
+				if (newContent != null) {
+					DisplayBindingService.AttachSubWindows(newContent);
+					WorkbenchSingleton.Workbench.ShowView(newContent);
+				}
 			}
 		}
 		
@@ -130,7 +132,8 @@ namespace ICSharpCode.Core
 			if (binding != null) {
 				IViewContent newContent = binding.CreateContentForLanguage(language, content);
 				if (newContent == null) {
-					throw new ApplicationException(String.Format("Created view content was null{3}DefaultName:{0}{3}Language:{1}{3}Content:{2}", defaultName, language, content, Environment.NewLine));
+					LoggingService.Warn(String.Format("Created view content was null{3}DefaultName:{0}{3}Language:{1}{3}Content:{2}", defaultName, language, content, Environment.NewLine));
+					return null;
 				}
 				newContent.UntitledName = defaultName;
 				newContent.IsDirty      = false;

src/Main/Core/Project/Src/AddInTree/AddIn/ComplexCondition.cs

@@ -46,7 +46,7 @@ namespace ICSharpCode.Core
 			return !condition.IsValid(owner);
 		}
 		
-		public static ICondition Read(XmlTextReader reader)
+		public static ICondition Read(XmlReader reader)
 		{
 			return new NegatedCondition(Condition.ReadConditionList(reader, "Not")[0]);
 		}
@@ -98,7 +98,7 @@ namespace ICSharpCode.Core
 			return true;
 		}
 		
-		public static ICondition Read(XmlTextReader reader)
+		public static ICondition Read(XmlReader reader)
 		{
 			return new AndCondition(Condition.ReadConditionList(reader, "And"));
 		}
@@ -151,7 +151,7 @@ namespace ICSharpCode.Core
 			return false;
 		}
 		
-		public static ICondition Read(XmlTextReader reader)
+		public static ICondition Read(XmlReader reader)
 		{
 			return new OrCondition(Condition.ReadConditionList(reader, "Or"));
 		}

src/Main/Core/Project/Src/AddInTree/AddIn/Condition.cs

@@ -65,14 +65,14 @@ namespace ICSharpCode.Core
 
 		}
 		
-		public static ICondition Read(XmlTextReader reader)
+		public static ICondition Read(XmlReader reader)
 		{
 			Properties properties = Properties.ReadFromAttributes(reader);
 			string conditionName = properties["name"];
 			return new Condition(conditionName, properties);
 		}
 		
-		public static ICondition ReadComplexCondition(XmlTextReader reader)
+		public static ICondition ReadComplexCondition(XmlReader reader)
 		{
 			Properties properties = Properties.ReadFromAttributes(reader);
 			reader.Read();
@@ -105,7 +105,7 @@ namespace ICSharpCode.Core
 			return condition;
 		}
 		
-		public static ICondition[] ReadConditionList(XmlTextReader reader, string endElement)
+		public static ICondition[] ReadConditionList(XmlReader reader, string endElement)
 		{
 			List<ICondition> conditions = new List<ICondition>();
 			while (reader.Read()) {