Fixed unhandled FileNotFoundException in XML tree editor when a file is loaded with a dtd reference that cannot be found.

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/branches/3.0@3886 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/AddIns/DisplayBindings/XmlEditor/Project/Src/XmlTreeEditor.cs

@@ -40,6 +40,7 @@ namespace ICSharpCode.XmlEditor
 		{
 			try {
 				document = new XmlDocument();
+				document.XmlResolver = null;
 				document.LoadXml(xml);
 				view.Document = document;
 			} catch (XmlException ex) {

src/AddIns/DisplayBindings/XmlEditor/Test/Tree/LoadXmlFileWithMissingDtdFileRefTestFixture.cs

@@ -0,0 +1,59 @@
+// <file>
+//     <copyright see="prj:///doc/copyright.txt"/>
+//     <license see="prj:///doc/license.txt"/>
+//     <owner name="Matthew Ward" email="mrward@users.sourceforge.net"/>
+//     <version>$Revision$</version>
+// </file>
+
+using ICSharpCode.XmlEditor;
+using NUnit.Framework;
+using System;
+using System.IO;
+using System.Xml;
+using XmlEditor.Tests.Utils;
+
+namespace XmlEditor.Tests.Tree
+{
+	/// <summary>
+	/// If the XML loaded contains a DTD reference then if the XmlDocument.XmlResolver is not 
+	/// set to null then the XmlTreeEditor will throw an unhandled FileNotFoundException.
+	/// </summary>
+	[TestFixture]
+	public class LoadXmlFileWithMissingDtdFileRefTestFixture : XmlTreeViewTestFixtureBase
+	{		
+		[SetUp]
+		public void Init()
+		{
+			base.InitFixture();
+		}
+
+		[Test]
+		public void RootElementIsLoaded()
+		{
+			Assert.AreEqual("Library", editor.Document.DocumentElement.Name);
+		}
+		
+		/// <summary>
+		/// Returns the xhtml strict schema as the default schema.
+		/// </summary>
+		protected override XmlSchemaCompletionData DefaultSchemaCompletionData {
+			get {
+				XmlTextReader reader = ResourceManager.GetXhtmlStrictSchema();
+				return new XmlSchemaCompletionData(reader);
+			}
+		}
+		
+		protected override string GetXml()
+		{
+			return "<!DOCTYPE Library  SYSTEM \"Library.dtd\">\r\n" +
+				"<Library> \r\n" +
+				"   <Book  ISBN=\"9999-44-44-3333\" > \r\n" +
+				"        <Title>SharpDevelop</Title> \r\n" +
+				"        <Author>abc</Author>\r\n" +
+				"        <Publisher>SharpDevelop Publications</Publisher>\r\n" +
+				"        <Date_Published>22/10/1999</Date_Published>\r\n" +
+				"   </Book>\r\n" +
+				"</Library>";
+		}
+	}
+}

src/AddIns/DisplayBindings/XmlEditor/Test/XmlEditor.Tests.csproj

@@ -81,6 +81,7 @@
     <Compile Include="Tree\EditCommentNodesTestFixture.cs" />
     <Compile Include="Tree\InsertTextNodeAfterTestFixture.cs" />
     <Compile Include="Tree\InsertTextNodeBeforeTestFixture.cs" />
+    <Compile Include="Tree\LoadXmlFileWithMissingDtdFileRefTestFixture.cs" />
     <Compile Include="Tree\MenuCommandsTestFixture.cs" />
     <Compile Include="Tree\MouseDownTestFixture.cs" />
     <Compile Include="Tree\OwnerStatusTestFixture.cs" />