Fixed SD2-1107: InvalidEnumArgumentException when making form localizable and text alignment set to TopRight.

Do not create a new instance of DesignerResourceService on every designer load because this service caches the resource contents. Otherwise any changes to the resources are discarded when the user switches between source and design view more than once without saving.

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@1933 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/AddIns/DisplayBindings/FormsDesigner/Project/Src/DesignerViewContent.cs

@@ -111,7 +111,14 @@ namespace ICSharpCode.FormsDesigner
 			serviceContainer.AddService(typeof(IHelpService), new HelpService());
 			serviceContainer.AddService(typeof(System.Drawing.Design.IPropertyValueUIService), new PropertyValueUIService());
 			
-			designerResourceService = new DesignerResourceService(viewContent.FileName);
+			// Do not re-initialize the resource service on every load
+			// because of SD2-1107.
+			// The service holds cached resource file contents which
+			// may not have been written to disk yet if the user switched
+			// between source and design view without saving.
+			if (designerResourceService == null) {
+				designerResourceService = new DesignerResourceService(viewContent.FileName);
+			}
 			serviceContainer.AddService(typeof(System.ComponentModel.Design.IResourceService), designerResourceService);
 			AmbientProperties ambientProperties = new AmbientProperties();
 			serviceContainer.AddService(typeof(AmbientProperties), ambientProperties);