archive.rollingstone.com – another feather in our cap

With the successful launch of the new iPad-enabled Rolling Stone Archive, I figured I’d take the time out to congratulate our client, Bondi Digital, and my team at Applied Information Sciences (AIS): Jim Jackson, Robin Kaye, Ian Gilman and Siva Mallena  (with additional help from Leslee Sheu and Kevin Hanes).

Built on the same technology that we used to launch i.Playboy.com, the Rolling Stone archive combines our Silverlight viewer and the Html5, touch-optimized iPad viewer in a single site, sharing peripheral components such as menus and search features.  Per client requirements for Rolling Stone all desktop users will get the Silverlight-based viewer, with its keyboard and mouse integration, and deep zoom of images, while iPad users are automatically switched to the Html5 viewer.

Building and optimizing a highly graphics intensive app like this for the excellent, but admittedly limited, iPad browser has been a thoroughly enjoyable challenge. Showcasing our work to the public through another premier publication like Rolling Stone makes it all the more satisfying.

Our team is already onto the next publishing project – stay tuned…

"Microsoft has completely lost the web development community."

Last year Mark Pilgrim released a free e-book/site called “Dive Into Html5” (http://diveintohtml5.org/).  The site/book has served as a valuable resource on a recent Html5 project we’re working on here at AIS, and I have frequently gone back for details on topics such as local storage and canvas.  It is an excellent book for any bleeding edge web developer.  It is so choice. If you have the means, I highly recommend picking one up.

This week, Mark posted his observations on how publishing a free e-book (which is also purchasable in print format) works well for him, and that it gives great insight into what parts of the book are being read, and by whom. He then makes the following observation:

6% of visitors used some version of Internet Explorer. That is not a typo. The site works fine in Internet Explorer — the site practices what it preaches, and the live examples use a variety of fallbacks for legacy browsers — so this is entirely due to the subject matter. Microsoft has completely lost the web development community. (emphasis mine)

I forwarded this internally within AIS, and a nice debate ensued.  One common complaint was the hyperbole of the statement, and I agree; a more accurate line would likely be "Microsoft as a browser vendor has lost significant mindshare in the bleeding edge web development community."

Personally one of the things I love about Html5 (using the term the way the hypers would – to mean modern web development with client-driven UI interactions using JavaScript, CSS(3) and some HTML5 semantics) is that it has in some ways unified the web development community:  The debate a few years ago was about JSP vs .NET vs PHP vs Python vs Rails vs someotherservertechnology.  Folks from different camps seldom interacted and learned from each other.  With Html5, the backend processes are completely irrelevant, as long as they don’t muck with the Html (ASP.NET webforms is still a major sinner here, unfortunately) and developers using all sorts of backend software and operating systems are now adding to the collective knowledge, mostly working towards the common goal of getting as much functionality as possible, pushed to end users through mostly standards compliant browsers. 

For instance, our Html5 app is backed by ASP.NET MVC 2 and SQL server.  We do all our development on Windows, in Visual Studio – we’re looking to deploy to Azure.  Clearly we’re MS developers.  But we could just as well have done the app in Php against MySql running on linux and apache, and we’re taking cues from folks using python, java, Rails, Node.js, php and God knows what on the backend.

At the same time I haven’t used IE by choice for about 5 years, maybe more…

I was asked what I thought MS could do to gain back some developer mindshare – so here goes:

• My thoughts are that if Html5 and the set of bleeding edge technologists that go with it are any kind of priority for MS,  they need to do some or all of the following:
• Find a way to upgrade the legions of IE 6, 7  and 8 users to IE9.  This will obviously not be easy,  but they could do something similar to what Google did with Chrome frame (i.e. make IE9 a plugin for the older browsers),  or they could do something like the makers of the “IE Tab” Chrome and Firefox extensions do,  allow IE to be hosted inside Chrome,  and only activate it for certain sites.  Or let users install IE9 side by side with the older versions.   All of these would have as goal to encourage end users to use the latest possible browser for the task they need it for,  and to make them install IE9 instead of Chrome or Firefox.
• Make IE9 the paragon of standards compliance.   (They are actually getting close to this...)
• Bring IE9 to WP7 and whatever tablet software they're coming out with.
• Reduce the focus of Silverlight as a browser plugin,  and make it more about web-deployed desktop apps.
• Drastically improve the support for css and javascript in Visual Studio, including debugging and unit testing.   And give this toolset away in the form of VS Express.
• Evolve the Dev tools in IE9 to become better than Chrome's inspector and the Firebug plugin.
• Separate the IE development from Windows to allow quicker iterations
• Do more things like the jQuery deal. The world of CSS is a mess (we desperately need mixins and code forks like those provided by media queries), MS could take the lead here…

The point is, whether Mark’s browser percentages are statistically valid as an indication of web developer’s preferences, or to what degree Microsoft is lagging/losing developer mindshare; these are not the pertinent questions.  The fact is that Microsoft is now not a leader in emerging web development areas – maybe they never were – but should they want to be, they need to take action. IE9 is shaping up to be a great browser, and they need to push it aggressively.

How to Always Run Visual Studio As Administrator

To jum straight to the solution, click here

“Certain tasks, including debugging and creating local IIS applications, require that you start Visual Studio as a user with Administrative privileges. On Windows Vista, and Windows Server 2008 when not running as the built-in Administrator account, this requires right-clicking the Visual Studio 2008 icon in the Start Menu and choosing Run as administrator.

“To make this process easier, you can create a shortcut and check the Run this program as an administrator check box on the Compatibility tab of the shortcut properties.”
from Using Visual Studio 2008 with IIS 7 @ learn.iis.net

On the last few projects I’ve worked on, we’ve used IIS sites for our development (for a number of reasons I won’t detail here), and the need to open VS in admin mode has been a constant annoyance.  It’s like constantly getting bitten by a mosquito. Today I finally got annoyed enough to spend 5 minutes researching a solution.  (I know.  I procrastinate.)

The solution, or what seems to be working for me so far at least was found at sevenforums.com: How to Run a Program as an Administrator in Windows 7.  Some of these options I knew about, the one I hadn’t tried and which worked for me was this:

1. Right click on the program shortcut or program .exe file, then click on Properties, and on the Compatibility tab. (See screenshots below)
NOTE: If you are doing this while logged on as a standard user instead of an administrator, then you will need to also click on the Change settings for all users button and type in the administrator's password.

2. To Always Run this Program as an Administrator -

A) Check the Run this program as an administrator box, and click on OK. (See screenshots above)

The key is to change the compatibility setting of the Visual Studio EXECUTABLE, not the shortcut to it.  I.e., on my laptop, I went to C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\ and right-clicked devenv.exe and then proceeded as above.

I then had to add one more step – when I now clicked on a .sln file, nothing would happen.  It appears the default Open action couldn’t run, I assume, due to inadequate privileges.  To fix this, I right-clicked the .sln file, selected Open With –> Choose Default Program, and then selected Visual Studio, making sure Always use… was checked.

Presto – my .sln files now open asking to be run as admin, as do my jump list projects.

Itch scratched.

Uri Properties

For the life of me I can never remember what each property of the Uri class is meant to return.  SnippetCompiler to the rescue:

public static void RunSnippet()
{
  Uri foo = new Uri("http://some.domain.com/folder/file.htm?param=val#frag");
    foreach(PropertyInfo pi in foo.GetType().GetProperties()){
      if (pi.CanRead) {
        WL("{0}: {1}", pi.Name, pi.GetValue(foo, null));
      }
    }
}

Make sure using System.Reflection; and using System.Web; are is included, and there you have it:

AbsolutePath: /folder/file.htm
AbsoluteUri: http://some.domain.com/folder/file.htm?param=val#frag
Authority: some.domain.com
Host: some.domain.com
HostNameType: Dns
IsDefaultPort: True
IsFile: False
IsLoopback: False
IsUnc: False
LocalPath: /folder/file.htm
PathAndQuery: /folder/file.htm?param=val
Port: 80
Query: ?param=val
Fragment: #frag
Scheme: http
OriginalString: http://some.domain.com/folder/file.htm?param=val#frag
DnsSafeHost: some.domain.com
IsAbsoluteUri: True
Segments: System.String[]
UserEscaped: False
UserInfo:

UPDATE:  Steve Michellotti just showed me how this works beautifully in LinqPad as well, just set the language to C# Statement(s), replace WL with Console.WriteLine and you’re good to go.

MVC Route Constraint to Exclude Values

For Album Credits I wanted to allow personalized urls of the format http://albumcredits.com/yournamehere.  This turned out to be quite an interesting routing exercise.

Since this is an MVC app, our standard url format is of the usual http://albumcredits.com/{controller}/{action}/{index} kind, and for some pages, I need to allow the url to simply specify the controller, defaulting the action to index – again, the usual ASP.NET MVC pattern.

I was familiar with the constraint parameter option for the AddRoute method, but had never studied it in much detail – we’d used it to limit certain indexes to be numeric, but that was all.  For the root-level personalized urls we needed a more robust constraint – specifically we needed to exclude any controller from the list of valid personalized Urls.

I first spent more time than I cared to trying to come up with a regular expression pattern that would NOT match the list of controller names – it looked something like this:
^(?:(?!\b(foo|bar)\b).)*$
(thanks to Justin Poliey/stackoverflow.com) where foo and bar, etc were the controller names to NOT match.

Not until after I got that to work did I think to google “mvc custom route constraint”.  Of course the MS MVC team was smarter than that – custom route constraints are really very straight forward…

For my purposes, I went with David Hayden’s approach – the code below is essentially the same as his, just with the logic reversed.

using System;
using System.Linq;
using System.Web;
using System.Web.Routing;

namespace AlbumCredits.Web
{
	/// <summary>
	/// Route constraint that returns true if the parameter value is not one of the excluded values.
	/// </summary>
	/// <example>A controller constraint like 
	/// <code>new { controller = new ExcludeValuesConstraint("foo", "bar") }</code>
	/// will match "blah" or "snort" but will not match "foo" or "bar".
	/// </example>
	public class ExcludeValuesConstraint : IRouteConstraint
	{
		private readonly string[] _excludeValues;
		/// <summary>
		/// Initializes a new instance of the <see cref="ExcludeValuesConstraint"/> class.
		/// Example: <code>new { controller = new ExcludeValuesConstraint("foo", "bar") }</code>
		/// will match "blah" or "snort" but will not match "foo" or "bar".
		/// </summary>
		/// <param name="excludeValues">The excluded values.</param>
		public ExcludeValuesConstraint(params string[] excludeValues)
		{
			_excludeValues = excludeValues;
		}

		/// <summary>
		/// Determines whether the URL parameter contains a valid value for this constraint.
		/// </summary>
		/// <param name="httpContext">An object that encapsulates information about the HTTP request.</param>
		/// <param name="route">The object that this constraint belongs to.</param>
		/// <param name="parameterName">The name of the parameter that is being checked.</param>
		/// <param name="values">An object that contains the parameters for the URL.</param>
		/// <param name="routeDirection">An object that indicates whether the constraint check is being performed when an incoming request is being handled or when a URL is being generated.</param>
		/// <returns>
		/// true if the URL parameter contains a valid value; otherwise, false.
		/// </returns>
		public bool Match(HttpContextBase httpContext, Route route, string parameterName, 
			RouteValueDictionary values, RouteDirection routeDirection)
		{
			return !(_excludeValues.Contains(values[parameterName].ToString(), StringComparer.InvariantCultureIgnoreCase));
		}
	}
}

I can now use this when setting up my Route Table like this:

	routes.MapRoute("PersonalizedUrl",
		/* for urls like  */ "{personalizedUrl}",
		/* route defaults */ new { controller = MVC.Profile.Name, action = MVC.Profile.Actions.IndexByPersonalizedUrl, personalizedUrl = string.Empty },
		/* where          */ new { personalizedUrl = new ExcludeValuesConstraint(ControllerNameArray) }
	);

Making T4MVC comply with CLS

FXCop rule CA1014 tells you to mark your assembly as CLSCompliant. If you adhere to this, your T4MVC (as of build 2.4.01 at least) will throw compiler warnings saying stuff like

Identifier

‘xxxController._Actions’ ’xxxController._Views’ ’T4MVC._Dummy’

is not CLS-Compliant.

If you have 10 controllers and 50 views this will result in 61 warnings…

The reason is that these are public members that start with an underscore, which is a CLS no-no:

http://stackoverflow.com/questions/1195030/why-is-this-name-not-cls-compliant

 

To solve this, edit the T4MVC.tt file to mark the code with a [CLSCompliant(false)] attribute.  Once you start this, you’ll also find additional warnings from mebers that implement the now-explicitly-non-compliant members, but a few more [CLSCompliant(false)] attribute handles that. Full code in gist below.

	<#
	/*
	T4MVC Version 2.4.01 + AIS Modifications
	AIS Modifications are to fix StyleCop and CLSCompliant-related issues:
	* Marking the file with an // <auto-generated /> comment
	* Changing the region to include the term 'Generated Code'
	* Marking all public members that start with _ as CLSCompliant(false)
	* Marking all members that reference said members as CLSCompliant(false)
	Full details at http://mo.notono.us/2009/08/making-t4mvc-comply-with-stylecop.html
	and http://mo.notono.us/2009/08/making-t4mvc-comply-with-cls.html
	Find latest version on http://aspnet.codeplex.com/Release/ProjectReleases.aspx?ReleaseId=24471&ProjectName=aspnet
	Written by David Ebbo, with much feedback from the MVC community (thanks all!)
	david.ebbo@microsoft.com
	http://twitter.com/davidebbo
	http://blogs.msdn.com/davidebb
	Related blog posts:
	http://blogs.msdn.com/davidebb/archive/2009/07/28/t4mvc-2-4-updates-settings-file-sub-view-folders-actionname-support-and-more.aspx
	http://blogs.msdn.com/davidebb/archive/2009/06/30/t4mvc-2-2-update-routing-forms-di-container-fixes.aspx
	http://blogs.msdn.com/davidebb/archive/2009/06/26/the-mvc-t4-template-is-now-up-on-codeplex-and-it-does-change-your-code-a-bit.aspx
	http://blogs.msdn.com/davidebb/archive/2009/06/17/a-new-and-improved-asp-net-mvc-t4-template.aspx
	Feel free to use and modify to fit your needs.
	This T4 template for ASP.NET MVC apps creates strongly typed helpers that eliminate the use
	of literal strings when referring the controllers, actions and views.
	To use it, simply copy it and T4MVC.settings.t4 to the root of your MVC application.
	This will enable the following scenarios:
	Refer to controller, action and view names as shown in these examples:
	- MVC.Dinners.Name: "Dinners" (controller name).
	- MVC.Dinners.Views.DinnerForm: "DinnerForm" (view name)
	- MVC.Dinners.Actions.Delete: "Delete" (action name)
	Strong type certain scenarios that refer to controller actions. e.g.
	- Html.ActionLink("Delete Dinner", MVC.Dinners.Delete(Model.DinnerID))
	- Url.Action(MVC.Dinners.Delete(Model.DinnerID))
	- RedirectToAction(MVC.Dinners.Delete(dinner.DinnerID))
	- Route defaults e.g.
	routes.MapRoute(
	"UpcomingDinners",
	"Dinners/Page/{page}",
	MVC.Dinners.Index(null)
	);
	Refer to your static images and script files with strong typing, e.g.
	Instead of <img src="/Content/nerd.jpg" ...>, you can write <img src="<%= Links.Content.nerd_jpg %>" ...>
	Instead of <script src="/Scripts/Map.js" ...>, you can write <script src="<%= Links.Scripts.Map_js %>" ...>
	Or if the file name is dynamic, you can write: Links.Content.Url("foo.jpg")
	KNOWN ISSUES:
	- Users running VisualSVN have reported some errors when T4MVC tries to change actions to virtual and controllers to partial.
	The suggestion when that happens is to manually make those changes. This is just a one time thing you need to do.
	- It will not locate controllers that live in a different project or assembly
	HISTORY:
	2.4.01 (07-29-2009):
	- Put all the generated code in a T4MVC #region. This is useful to tell tools like ReSharper to ignore it.
	- Fixed issue where controller methods returning generic types cause template to blow up
	- Added a setting in T4MVC.settings.t4 to turn off the behavior that always keeps the template dirty
	2.4.00 (07-28-2009):
	- Added support for configurable settings in a separate T4MVC.settings.t4 file
	- Added a parameter-less pseudo-action for every action that doesn't already have a parameter-less overload
	- Added support for having T4MVC.tt in a sub folder instead of always at the root of the project
	- Fixed issue when a base controller doesn't have a default ctor
	- Added T4Extensions into System.Web.Mvc namespace to fix ambiguous resolution issue
	- Misc cleanup
	2.3.01 (07-10-2009):
	- Fixed issue with [ActionName] attribute set to non literal string values (e.g. [ActionName(SomeConst + "Abc")])
	- Fixed duplication issue when partial controller classes have a base type which contains action methods
	- Skip App_LocalResources when processing views
	- Cleaned up rendering logic
	2.3.00 (07-07-2009):
	- Added support for sub view folders
	- Added support for [ActionName] attribute
	- Improved handling when the controller comes from a different project
	- Don't try to process generic controller classes
	2.2.03 (07-06-2009):
	- Added support for action methods defined on controller base classes
	- Improved error handling when not able to change actions to virtual and controllers to partial
	2.2.02 (07-01-2009):
	- Fixed break caused by incorrect support for derived ActionResult types in 2.2.01
	- Fixed issue with duplicate view tokens getting generated when you have both foo.aspx and foo.ascx
	2.2.01 (07-01-2009):
	- Added support for action methods that return a type derived from ActionResult (as opposed to exactly an ActionResult)
	- Fixed issue when controller is using partial classes
	- Fixed folder handling logic to deal with generated files
	- Fixed issue with folder names that are C# keyword
	- Throw NotSupportedException instead of NotImplementedException to avoid being viewed as a TODO
	2.2.00 (06-30-2009):
	- Added strongly typed support to MapRoute
	- Changed constructor generation to avoid confusing IoC containers
	- Fixed issue with empty Content folder
	- Fixed issue with abstract controller base classes
	2.1.00 (06-29-2009):
	- Added Html.BeginForm overloads that use the strongly typed pattern
	- Added Url() helpers on static resources to increase flexibility
	- Changed generated constants (view and action names, static files) to be readonly strings
	- Fixed null ref exception in Solution Folder logic
	2.0.04 (06-28-2009):
	- Fixed issue with files and folders with names starting with a digit
	2.0.03 (06-27-2009):
	- Rework code element enumeration logic to work around a VS2010 issue. The template should now work with VS2010 beta 1!
	- Reduced some redundancy in the generated code
	2.0.02 (06-27-2009):
	- Added ActionLink overloads that take object instead of dictionary (from both Html and Ajax)
	2.0.01 (06-26-2009):
	- Fixed issue with files and folders with invalid identifier characters (e.g. spaces, '-', '.')
	2.0.00 (06-26-2009): as described in http://blogs.msdn.com/davidebb/archive/2009/06/26/the-mvc-t4-template-is-now-up-on-codeplex-and-it-does-change-your-code-a-bit.aspx
	- Added support for refactoring in Action methods
	- The T4 file automatically runs whenever you build, instead of being done manually
	- Support for strongly typed links to static resources
	- Fix: supports controllers that are in sub-folders of the Controllers folder and not directly in there
	- Fix: works better with nested solution folder
	- Random other small fixes
	1.0.xx (06-17-2009): the original based on this post
	http://blogs.msdn.com/davidebb/archive/2009/06/17/a-new-and-improved-asp-net-mvc-t4-template.aspx
	*/
	#>
	<#@ template language="C#v3.5" debug="true" hostspecific="true" #>
	<#@ assembly name="System.Core" #>
	<#@ assembly name="Microsoft.VisualStudio.Shell.Interop.8.0" #>
	<#@ assembly name="EnvDTE" #>
	<#@ assembly name="EnvDTE80" #>
	<#@ import namespace="System.Collections.Generic" #>
	<#@ import namespace="System.IO" #>
	<#@ import namespace="System.Linq" #>
	<#@ import namespace="System.Text.RegularExpressions" #>
	<#@ import namespace="Microsoft.VisualStudio.Shell.Interop" #>
	<#@ import namespace="EnvDTE" #>
	<#@ import namespace="EnvDTE80" #>
	<#@ import namespace="Microsoft.VisualStudio.TextTemplating" #>
	<# PrepareDataToRender(this); #>
	// <auto-generated />
	// This file was generated by a T4 template.
	// Don't change it directly as your change would get overwritten. Instead, make changes
	// to the .tt file (i.e. the T4 template) and save it to regenerate this file.
	#region T4MVC Generated Code
	using System;
	using System.Collections.Generic;
	using System.Runtime.CompilerServices;
	using System.Web;
	using System.Web.Mvc;
	using System.Web.Mvc.Ajax;
	using System.Web.Mvc.Html;
	using System.Web.Routing;
	using <#= T4MVCNamespace #>;
	[CompilerGenerated]
	public static class <#= HelpersPrefix #> {
	<# foreach (var controller in GetControllers()) { #>
	public static <#= controller.FullClassName #> <#= controller.Name #> = new <#= controller.DerivedClassName #>();
	<# } #>
	}
	<# foreach (var controller in GetAbstractControllers().Where(c => !c.HasDefaultConstructor)) { #>
	namespace <#= controller.Namespace #> {
	public partial class <#= controller.ClassName #> {
	protected <#= controller.ClassName #>() { }
	}
	}
	<# } #>
	<# foreach (var controller in GetControllers()) { #>
	namespace <#= controller.Namespace #> {
	public <# if (!controller.SharedViewFolder) { #>partial <# } #>class <#= controller.ClassName #> {
	<# if (!controller.SharedViewFolder) { #>
	<# if (!controller.HasExplicitConstructor) { #>
	public <#= controller.ClassName #>() { }
	<# } #>
	[CLSCompliant(false)]
	[CompilerGenerated]
	protected <#= controller.ClassName #>(_Dummy d) { }
	protected RedirectToRouteResult RedirectToAction(ActionResult result) {
	var callInfo = (IT4MVCActionResult)result;
	return RedirectToRoute(callInfo.RouteValues);
	}
	<# foreach (var method in controller.ActionMethodsUniqueWithoutParameterlessOverload) { #>
	[NonAction]
	public ActionResult <#= method.Name #>() {
	return new T4MVC_ActionResult(Name, Actions.<#= method.ActionName #>);
	}
	<# } #>
	[CompilerGenerated]
	public readonly string Name = "<#= controller.Name #>";
	static readonly _Actions s_actions = new _Actions();
	[CLSCompliant(false)]
	[CompilerGenerated]
	public _Actions Actions { get { return s_actions; } }
	[CLSCompliant(false)]
	[CompilerGenerated]
	public class _Actions {
	<# foreach (var method in controller.ActionMethodsWithUniqueNames) { #>
	public readonly string <#= method.ActionName #> = <#= method.ActionNameValueExpression #>;
	<# } #>
	}
	<# } #>
	static readonly _Views s_views = new _Views();
	[CLSCompliant(false)]
	[CompilerGenerated]
	public _Views Views { get { return s_views; } }
	[CLSCompliant(false)]
	[CompilerGenerated]
	public class _Views {
	<# RenderControllerViews(controller);#>
	}
	}
	}
	<# } #>
	namespace <#= T4MVCNamespace #> {
	<# foreach (var controller in GetControllers().Where(c => !c.SharedViewFolder)) { #>
	[CompilerGenerated]
	public class <#= controller.DerivedClassName #>: <#= controller.FullClassName #> {
	public <#= controller.DerivedClassName #>() : base(_Dummy.Instance) { }
	<# foreach (var method in controller.ActionMethods) { #>
	public override <#= method.ReturnType #> <#= method.Name #>(<# method.WriteFormalParameters(true); #>) {
	var callInfo = new T4MVC_<#= method.ReturnType #>("<#= controller.Name #>", Actions.<#= method.ActionName #>);
	<# if (method.Parameters.Count > 0) { #>
	<# foreach (var p in method.Parameters) { #>
	callInfo.RouteValues.Add("<#= p.Name #>", <#= p.Name #>);
	<# } #>
	<# }#>
	return callInfo;
	}
	<# } #>
	}
	<# } #>
	[CLSCompliant(false)]
	[CompilerGenerated]
	public class _Dummy {
	private _Dummy() { }
	public static _Dummy Instance = new _Dummy();
	}
	}
	namespace System.Web.Mvc {
	[CompilerGenerated]
	public static class T4Extensions {
	public static string ActionLink(this HtmlHelper htmlHelper, string linkText, ActionResult result) {
	return htmlHelper.RouteLink(linkText, result.GetRouteValueDictionary());
	}
	public static string ActionLink(this HtmlHelper htmlHelper, string linkText, ActionResult result, object htmlAttributes) {
	return ActionLink(htmlHelper, linkText, result, new RouteValueDictionary(htmlAttributes));
	}
	public static string ActionLink(this HtmlHelper htmlHelper, string linkText, ActionResult result, IDictionary<string, object> htmlAttributes) {
	return htmlHelper.RouteLink(linkText, result.GetRouteValueDictionary(), htmlAttributes);
	}
	public static MvcForm BeginForm(this HtmlHelper htmlHelper, ActionResult result, FormMethod formMethod) {
	return htmlHelper.BeginForm(result, formMethod, null);
	}
	public static MvcForm BeginForm(this HtmlHelper htmlHelper, ActionResult result, FormMethod formMethod, object htmlAttributes) {
	return BeginForm(htmlHelper, result, formMethod, new RouteValueDictionary(htmlAttributes));
	}
	public static MvcForm BeginForm(this HtmlHelper htmlHelper, ActionResult result, FormMethod formMethod, IDictionary<string, object> htmlAttributes) {
	var callInfo = (IT4MVCActionResult)result;
	return htmlHelper.BeginForm(callInfo.Action, callInfo.Controller, callInfo.RouteValues, formMethod, htmlAttributes);
	}
	public static string Action(this UrlHelper urlHelper, ActionResult result) {
	return urlHelper.RouteUrl(result.GetRouteValueDictionary());
	}
	public static string ActionLink(this AjaxHelper ajaxHelper, string linkText, ActionResult result, AjaxOptions ajaxOptions) {
	return ajaxHelper.RouteLink(linkText, result.GetRouteValueDictionary(), ajaxOptions);
	}
	public static string ActionLink(this AjaxHelper ajaxHelper, string linkText, ActionResult result, AjaxOptions ajaxOptions, object htmlAttributes) {
	return ajaxHelper.RouteLink(linkText, result.GetRouteValueDictionary(), ajaxOptions, new RouteValueDictionary(htmlAttributes));
	}
	public static string ActionLink(this AjaxHelper ajaxHelper, string linkText, ActionResult result, AjaxOptions ajaxOptions, IDictionary<string, object> htmlAttributes) {
	return ajaxHelper.RouteLink(linkText, result.GetRouteValueDictionary(), ajaxOptions, htmlAttributes);
	}
	public static Route MapRoute(this RouteCollection routes, string name, string url, ActionResult result) {
	return routes.MapRoute(name, url, result, (ActionResult)null);
	}
	public static Route MapRoute(this RouteCollection routes, string name, string url, ActionResult result, object defaults) {
	// Start by adding the default values from the anonymous object (if any)
	var routeValues = new RouteValueDictionary(defaults);
	// Then add the Controller/Action names and the parameters from the call
	foreach (var pair in result.GetRouteValueDictionary()) {
	routeValues.Add(pair.Key, pair.Value);
	}
	// Create and add the route
	var route = new Route(url, routeValues, new MvcRouteHandler());
	routes.Add(name, route);
	return route;
	}
	public static RouteValueDictionary GetRouteValueDictionary(this ActionResult result) {
	return ((IT4MVCActionResult)result).RouteValues;
	}
	public static void InitMVCT4Result(this IT4MVCActionResult result, string controller, string action) {
	result.Controller = controller;
	result.Action = action; ;
	result.RouteValues = new RouteValueDictionary();
	result.RouteValues.Add("Controller", controller);
	result.RouteValues.Add("Action", action);
	}
	}
	}
	[CompilerGenerated]
	public interface IT4MVCActionResult {
	string Action { get; set; }
	string Controller { get; set; }
	RouteValueDictionary RouteValues { get; set; }
	}
	<# foreach (var resultType in ResultTypes.Values) { #>
	[CompilerGenerated]
	public class T4MVC_<#= resultType.Name #> : <#= resultType.Name #>, IT4MVCActionResult {
	public T4MVC_<#= resultType.Name #>(string controller, string action): base(<# resultType.Constructor.WriteNonEmptyParameterValues(true); #>) {
	this.InitMVCT4Result(controller, action);
	}
	<# foreach (var method in resultType.AbstractMethods) { #>
	<#= method.IsPublic ? "public" : "protected" #> override void <#= method.Name #>(<# method.WriteFormalParameters(true); #>) { }
	<# } #>
	public string Controller { get; set; }
	public string Action { get; set; }
	public RouteValueDictionary RouteValues { get; set; }
	}
	<# } #>
	namespace Links {
	<#
	foreach (string folder in StaticFilesFolders) {
	ProcessStaticFiles(Project, folder);
	}
	#>
	}
	#endregion T4MVC
	<#@ Include File="T4MVC.settings.t4" #>
	<#+
	const string T4MVCNamespace = "T4MVC";
	const string ControllerSuffix = "Controller";
	static DTE Dte;
	static Project Project;
	static HashSet<ControllerInfo> Controllers;
	static Dictionary<string, ResultTypeInfo> ResultTypes;
	static TextTransformation TT;
	static string T4FileName;
	static IEnumerable<ControllerInfo> GetControllers() {
	return Controllers.Where(c => !c.IsAbstract);
	}
	static IEnumerable<ControllerInfo> GetAbstractControllers() {
	return Controllers.Where(c => c.IsAbstract);
	}
	void PrepareDataToRender(TextTransformation tt) {
	TT = tt;
	T4FileName = Path.GetFileName(Host.TemplateFile);
	Controllers = new HashSet<ControllerInfo>();
	ResultTypes = new Dictionary<string, ResultTypeInfo>();
	// Get the DTE service from the host
	Dte = (DTE)((IServiceProvider)Host).GetService(typeof(SDTE));
	Project = GetProjectContainingT4File(Dte);
	if (Project == null) {
	Error("Could not find the VS Project containing the T4 file.");
	return;
	}
	ProcessControllersFolder(Project);
	ProcessAllViews(Project);
	}
	Project GetProjectContainingT4File(DTE dte) {
	// Just locating the Project that contains this T4 file is immensely difficult.
	// If there is an easier way to do it, I'd love to know!
	foreach (Project project in dte.Solution.Projects) {
	Project foundProject = GetProjectContainingT4File(project);
	if (foundProject != null)
	return foundProject;
	}
	return null;
	}
	Project GetProjectContainingT4File(Project project) {
	if (project.ConfigurationManager != null) {
	// It's a Project
	// Get the folder the project is in, making sure it ends with '\'
	string projectFolder = Path.GetDirectoryName(project.FileName);
	if (!projectFolder.EndsWith("\\"))
	projectFolder += '\\';
	// If the .tt file is not under this folder, skip the project
	if (!Host.TemplateFile.StartsWith(projectFolder, StringComparison.OrdinalIgnoreCase))
	return null;
	// Get the relative path to the .tt file inside the project
	string t4SubPath = Host.TemplateFile.Substring(projectFolder.Length);
	// If it has the T4 file we're looking for, it's the one we want
	ProjectItem projectItem = GetProjectItem(project, t4SubPath);
	if (projectItem != null) {
	// If the .tt file is not opened, open it
	if (projectItem.Document == null)
	projectItem.Open(Constants.vsViewKindCode);
	if (AlwaysKeepTemplateDirty) {
	// Mark the .tt file as unsaved. This way it will be saved and update itself next time the
	// project is built. Basically, it keeps marking itself as unsaved to make the next build work.
	// Note: this is certainly hacky, but is the best I could come up with so far.
	projectItem.Document.Saved = false;
	}
	return project;
	}
	}
	else if (project.ProjectItems != null) {
	// It may be a solution folder. Need to recurse.
	foreach (ProjectItem item in project.ProjectItems) {
	if (item.SubProject == null)
	continue;
	Project foundProject = GetProjectContainingT4File(item.SubProject);
	if (foundProject != null)
	return foundProject;
	}
	}
	return null;
	}
	void ProcessControllersFolder(Project project) {
	// Get the Controllers folder
	ProjectItem controllerProjectItem = GetProjectItem(project, ControllersFolder);
	if (controllerProjectItem == null)
	return;
	ProcessControllersRecursive(controllerProjectItem);
	}
	void ProcessControllersRecursive(ProjectItem projectItem) {
	// Recurse into all the sub-items (both files and folder can have some - e.g. .tt files)
	foreach (ProjectItem item in projectItem.ProjectItems) {
	ProcessControllersRecursive(item);
	}
	if (projectItem.FileCodeModel != null) {
	// Process all the elements that are namespaces
	foreach (CodeNamespace ns in GetNamespaces(projectItem.FileCodeModel.CodeElements)) {
	ProcessControllerTypesInNamespace(ns);
	}
	}
	}
	void ProcessControllerTypesInNamespace(CodeNamespace ns) {
	foreach (CodeClass2 type in GetClasses(ns.Members)) {
	// Only process types that end with Controller
	// REVIEW: this check is not super reliable. Should look at base class.
	if (!type.Name.EndsWith(ControllerSuffix, StringComparison.OrdinalIgnoreCase))
	continue;
	// Don't process generic classes (their concrete derived classes will be processed)
	if (type.IsGeneric)
	continue;
	// Make sure the class is partial
	if (type.ClassKind != vsCMClassKind.vsCMClassKindPartialClass) {
	try {
	type.ClassKind = vsCMClassKind.vsCMClassKindPartialClass;
	}
	catch {
	// If we couldn't make it partial, give a warning and skip it
	Warning(String.Format("{0} was not able to make the class {1} partial. Please change it manually if possible", T4FileName, type.Name));
	continue;
	}
	Warning(String.Format("{0} changed the class {1} to be partial", T4FileName, type.Name));
	}
	// Collect misc info about the controller class and add it to the collection
	var controllerInfo = new ControllerInfo() {
	Namespace = ns.Name,
	ClassName = type.Name
	};
	// Either process new ControllerInfo or integrate results into existing object for partially defined controllers
	var target = Controllers.Add(controllerInfo) ? controllerInfo : Controllers.First(c => c.Equals(controllerInfo));
	target.HasExplicitConstructor |= HasExplicitConstructor(type);
	target.HasExplicitDefaultConstructor |= HasExplicitDefaultConstructor(type);
	if (type.IsAbstract) {
	// If it's abstract, set a flag and don't process action methods (derived classes will)
	target.IsAbstract = true;
	}
	else {
	// Process all the action methods in the controller
	ProcessControllerActionMethods(target, type);
	}
	}
	}
	void ProcessControllerActionMethods(ControllerInfo controllerInfo, CodeClass2 current) {
	// We want to process not just the controller class itself, but also its parents, as they
	// may themselves define actions
	for (CodeClass2 type = current; type != null && type.FullName != "System.Web.Mvc.Controller"; type = (CodeClass2)type.Bases.Item(1)) {
	// If the type doesn't come from this project, some actions on it will fail. Try to get a real project type if possible.
	if (type.InfoLocation != vsCMInfoLocation.vsCMInfoLocationProject) {
	// Go through all the projects in the solution
	foreach (Project prj in Dte.Solution.Projects) {
	// Skip it if it's the current project or doesn't have a code model
	if (prj == Project || prj.CodeModel == null)
	continue;
	// If we can get a local project type, use it instead of the original
	var codeType = prj.CodeModel.CodeTypeFromFullName(type.FullName);
	if (codeType != null && codeType.InfoLocation == vsCMInfoLocation.vsCMInfoLocationProject) {
	type = (CodeClass2)codeType;
	break;
	}
	}
	}
	foreach (CodeFunction2 method in GetMethods(type)) {
	// Ignore non-public methods
	if (method.Access != vsCMAccess.vsCMAccessPublic)
	continue;
	// This takes care of avoiding generic types which cause method.Type.CodeType to blow up
	if (method.Type.TypeKind != vsCMTypeRef.vsCMTypeRefCodeType)
	continue;
	// We only support action methods that return an ActionResult derived type
	if (!method.Type.CodeType.get_IsDerivedFrom("System.Web.Mvc.ActionResult")) {
	Warning(String.Format("{0} doesn't support {1}.{2} because it doesn't return a supported ActionResult type", T4FileName, type.Name, method.Name));
	continue;
	}
	// If we haven't yet seen this return type, keep track of it
	if (!ResultTypes.ContainsKey(method.Type.CodeType.Name)) {
	var resTypeInfo = new ResultTypeInfo(method.Type.CodeType);
	ResultTypes[method.Type.CodeType.Name] = resTypeInfo;
	}
	// Make sure the method is virtual
	if (!method.CanOverride) {
	try {
	method.CanOverride = true;
	}
	catch {
	// If we couldn't make it virtual, give a warning and skip it
	Warning(String.Format("{0} was not able to make the action method {1}.{2} virtual. Please change it manually if possible", T4FileName, type.Name, method.Name));
	continue;
	}
	Warning(String.Format("{0} changed the action method {1}.{2} to be virtual", T4FileName, type.Name, method.Name));
	}
	// Collect misc info about the action method and add it to the collection
	controllerInfo.ActionMethods.Add(new ActionMethodInfo(method, controllerInfo));
	}
	}
	}
	void ProcessAllViews(Project project) {
	// Get the Views folder
	ProjectItem viewsProjectItem = GetProjectItem(project, ViewsRootFolder);
	if (viewsProjectItem == null)
	return;
	// Go through all the sub-folders in the Views folder
	foreach (ProjectItem item in viewsProjectItem.ProjectItems) {
	// We only care about sub-folders, not files
	if (!IsFolder(item))
	continue;
	ControllerInfo controller;
	// Treat Shared as a pseudo-controller for consistency
	if (item.Name.Equals("Shared", StringComparison.OrdinalIgnoreCase)) {
	controller = new ControllerInfo() { SharedViewFolder = true, Namespace = T4MVCNamespace, ClassName = "Shared" + ControllerSuffix };
	Controllers.Add(controller);
	}
	else {
	// Find the controller for this view folder
	controller = Controllers.SingleOrDefault(c => c.Name.Equals(item.Name, StringComparison.OrdinalIgnoreCase));
	if (controller == null) {
	Error(String.Format("The Views folder has a sub-folder named '{0}', but there is no matching controller", item.Name));
	continue;
	}
	}
	AddViewsRecursive(String.Empty, item.ProjectItems, controller.ViewsFolder);
	}
	}
	void AddViewsRecursive(string prefix, ProjectItems items, ViewsFolderInfo viewsFolder) {
	// Go through all the files in the subfolder to get the view names
	foreach (ProjectItem item in items) {
	string viewName = Path.GetFileNameWithoutExtension(item.Name);
	if (item.Kind == Constants.vsProjectItemKindPhysicalFile) {
	if (Path.GetExtension(item.Name).Equals(".master", StringComparison.OrdinalIgnoreCase))
	continue; // ignore master files
	viewsFolder.Views.Add(viewName);
	}
	else if (item.Kind == Constants.vsProjectItemKindPhysicalFolder) {
	var subViewFolder = new ViewsFolderInfo() { FullName = prefix + viewName };
	if (subViewFolder.Name.Equals("App_LocalResources", StringComparison.OrdinalIgnoreCase))
	continue;
	viewsFolder.SubFolders.Add(subViewFolder);
	AddViewsRecursive(prefix + viewName + "/", item.ProjectItems, subViewFolder);
	}
	}
	}
	void RenderControllerViews(ControllerInfo controller) {
	PushIndent(" ");
	RenderViewsRecursive(controller.ViewsFolder);
	PopIndent();
	}
	void RenderViewsRecursive(ViewsFolderInfo viewsFolder) {
	// For each view, generate a readonly string
	foreach (string view in viewsFolder.Views) {
	WriteLine("public readonly string " + Sanitize(view) + " = \"" + viewsFolder.GetFullViewName(view) + "\";");
	}
	// For each sub folder, generate a class and recurse
	foreach (var subFolder in viewsFolder.SubFolders) {
	string newClassName = Sanitize(subFolder.Name);#>
	static readonly _<#=newClassName#> s_<#=newClassName#> = new _<#=newClassName#>();
	public _<#=newClassName#> <#=newClassName#> { get { return s_<#=newClassName#>; } }
	public partial class _<#=newClassName#>{
	<#+
	PushIndent(" ");
	RenderViewsRecursive(subFolder);
	PopIndent();
	WriteLine("}");
	}
	}
	void ProcessStaticFiles(Project project, string folder) {
	ProjectItem folderProjectItem = GetProjectItem(project, folder);
	if (folderProjectItem != null) {
	ProcessStaticFilesRecursive(folderProjectItem, "~");
	}
	}
	void ProcessStaticFilesRecursive(ProjectItem projectItem, string path) {
	if (IsFolder(projectItem)) { #>
	[CompilerGenerated]
	public static class @<#=Sanitize(projectItem.Name) #> {
	public static string Url() { return VirtualPathUtility.ToAbsolute("<#=path#>/<#=projectItem.Name#>"); }
	public static string Url(string fileName) { return VirtualPathUtility.ToAbsolute("<#=path#>/<#=projectItem.Name#>/" + fileName); }
	<#+
	PushIndent(" ");
	// Recurse into all the items in the folder
	foreach (ProjectItem item in projectItem.ProjectItems) {
	ProcessStaticFilesRecursive(item, path + "/" + projectItem.Name);
	}
	PopIndent();
	#>
	}
	<#+
	}
	else { #>
	public static readonly string <#=Sanitize(projectItem.Name)#> = Url("<#=projectItem.Name#>");
	<#+
	// Non folder items may also have children (virtual folders, Class.cs -> Class.Designer.cs, template output)
	// Just register them on the same path as their parent item
	foreach (ProjectItem item in projectItem.ProjectItems) {
	ProcessStaticFilesRecursive(item, path);
	}
	}
	}
	ProjectItem GetProjectItem(Project project, string name) {
	return GetProjectItem(project.ProjectItems, name);
	}
	ProjectItem GetProjectItem(ProjectItems items, string subPath) {
	ProjectItem current = null;
	foreach (string name in subPath.Split('\\')) {
	try {
	// ProjectItems.Item() throws when it doesn't exist, so catch the exception
	// to return null instead.
	current = items.Item(name);
	}
	catch {
	// If any chunk couldn't be found, fail
	return null;
	}
	items = current.ProjectItems;
	}
	return current;
	}
	// Return all the CodeNamespaces in the CodeElements collection
	static IEnumerable<CodeNamespace> GetNamespaces(CodeElements codeElements) {
	return GetElements<CodeNamespace>(codeElements);
	}
	// Return all the CodeClass2 in the CodeElements collection
	static IEnumerable<CodeClass2> GetClasses(CodeElements codeElements) {
	return GetElements<CodeClass2>(codeElements);
	}
	// Return all the CodeFunction2 in the CodeElements collection
	static IEnumerable<CodeFunction2> GetMethods(CodeClass2 codeClass) {
	// Only look at regular method (e.g. ignore things like contructors)
	return GetElements<CodeFunction2>(codeClass.Members)
	.Where(f => f.FunctionKind == vsCMFunction.vsCMFunctionFunction);
	}
	// Check if the class has any explicit constructor
	static bool HasExplicitConstructor(CodeClass2 codeClass) {
	return GetElements<CodeFunction2>(codeClass.Members).Any(
	f => f.FunctionKind == vsCMFunction.vsCMFunctionConstructor);
	}
	// Check if the class has a default (i.e. no params) constructor
	static bool HasExplicitDefaultConstructor(CodeClass2 codeClass) {
	return GetElements<CodeFunction2>(codeClass.Members).Any(
	f => f.FunctionKind == vsCMFunction.vsCMFunctionConstructor && f.Parameters.Count == 0);
	}
	// Find a method with a given name
	static CodeFunction2 GetMethod(CodeClass2 codeClass, string name) {
	return GetMethods(codeClass).FirstOrDefault(f => f.Name == name);
	}
	static IEnumerable<T> GetElements<T>(CodeElements codeElements) where T : class {
	// Note: this code can be simplified to just:
	// return codeElements.OfType<T>();
	// But this breaks on VS2010 beta due to a VS bug (that should be fixed in VS2010 beta 2).
	// For now, work around using this alternate code which avoids getting the enumerator
	for (int i = 1; i <= codeElements.Count; i++) {
	var codeNamespace = codeElements.Item(i) as T;
	if (codeNamespace != null)
	yield return codeNamespace;
	}
	}
	// Return whether a ProjectItem is a folder and not a file
	static bool IsFolder(ProjectItem item) {
	return (item.Kind == Constants.vsProjectItemKindPhysicalFolder);
	}
	static string Sanitize(string token) {
	// Replace all invalid chars by underscores
	token = Regex.Replace(token, @"[\W\b]", "_", RegexOptions.IgnoreCase);
	// If it starts with a digit, prefix it with an underscore
	token = Regex.Replace(token, @"^\d", @"_$0");
	// Check for reserved words
	// TODO: Clean this up and add other reserved words (keywords, etc)
	if (token == "Url") token = "_Url";
	return token;
	}
	// Data structure to collect data about a controller class
	class ControllerInfo {
	public ControllerInfo() {
	ActionMethods = new HashSet<ActionMethodInfo>();
	ViewsFolder = new ViewsFolderInfo();
	}
	// True when this is not a real controller, but a placeholder for the Shared views folder
	public bool SharedViewFolder { get; set; }
	public bool HasExplicitConstructor { get; set; }
	public bool HasExplicitDefaultConstructor { get; set; }
	public bool HasDefaultConstructor { get { return !HasExplicitConstructor || HasExplicitDefaultConstructor; } }
	public bool IsAbstract { get; set; }
	public string ClassName { get; set; }
	public string Name {
	get {
	// Trim the Controller suffix
	return ClassName.Substring(0, ClassName.Length - ControllerSuffix.Length);
	}
	}
	public string Namespace { get; set; }
	public string FullClassName {
	get {
	return Namespace + "." + ClassName;
	}
	}
	public string DerivedClassName {
	get {
	if (SharedViewFolder)
	return FullClassName;
	return "T4MVC_" + ClassName;
	}
	}
	public HashSet<ActionMethodInfo> ActionMethods { get; set; }
	IEnumerable<ActionMethodInfo> ActionMethodsWithNoParameters {
	get {
	return ActionMethods.Where(m => m.Parameters.Count == 0);
	}
	}
	public IEnumerable<ActionMethodInfo> ActionMethodsUniqueWithoutParameterlessOverload {
	get {
	return ActionMethodsWithUniqueNames.Except(ActionMethodsWithNoParameters, new ActionComparer());
	}
	}
	// Return a list of actions without duplicate names (even with multiple overloads)
	public IEnumerable<ActionMethodInfo> ActionMethodsWithUniqueNames {
	get {
	return ActionMethods.Distinct(new ActionComparer());
	}
	}
	class ActionComparer : IEqualityComparer<ActionMethodInfo> {
	public bool Equals(ActionMethodInfo x, ActionMethodInfo y) {
	return x.ActionName == y.ActionName;
	}
	public int GetHashCode(ActionMethodInfo obj) {
	return obj.ActionName.GetHashCode();
	}
	}
	public ViewsFolderInfo ViewsFolder { get; private set; }
	public override string ToString() {
	return Name;
	}
	public override bool Equals(object obj) {
	return obj != null && FullClassName == ((ControllerInfo)obj).FullClassName;
	}
	public override int GetHashCode() {
	return FullClassName.GetHashCode();
	}
	}
	// Info about a view folder, its views and its sub view folders
	class ViewsFolderInfo {
	public ViewsFolderInfo() {
	Views = new HashSet<string>();
	SubFolders = new List<ViewsFolderInfo>();
	}
	public string FullName { get; set; }
	public string Name {
	get {
	return FullName.Substring(FullName.LastIndexOf("/") + 1);
	}
	}
	public HashSet<string> Views { get; private set; }
	public List<ViewsFolderInfo> SubFolders { get; set; }
	public string GetFullViewName(string viewName) {
	if (String.IsNullOrEmpty(FullName))
	return viewName;
	return FullName + "/" + viewName;
	}
	}
	// Data structure to collect data about a method
	class FunctionInfo {
	protected CodeFunction2 _method;
	private string _signature;
	public FunctionInfo(CodeFunction2 method) {
	_method = method;
	// Build a unique signature for the method, used to avoid duplication
	_signature = method.Name;
	// Process all the parameters
	Parameters = new List<MethodParamInfo>();
	foreach (var p in GetElements<CodeParameter2>(method.Parameters)) {
	Parameters.Add(
	new MethodParamInfo() {
	Name = p.Name,
	Type = p.Type.AsString
	});
	_signature += "," + p.Type.AsString;
	}
	}
	public string Name { get { return _method.Name; } }
	public string ReturnType { get { return _method.Type.CodeType.Name; } }
	public bool IsPublic { get { return _method.Access == vsCMAccess.vsCMAccessPublic; } }
	public List<MethodParamInfo> Parameters { get; private set; }
	// Write out all the parameters as part of a method declaration
	public void WriteFormalParameters(bool first) {
	foreach (var p in Parameters) {
	if (first)
	first = false;
	else
	TT.Write(", ");
	TT.Write(p.Type + " " + p.Name);
	}
	}
	// Pass non-empty param values to make sure the ActionResult ctors don't complain
	// REVIEW: this is a bit dirty
	public void WriteNonEmptyParameterValues(bool first) {
	foreach (var p in Parameters) {
	if (first)
	first = false;
	else
	TT.Write(", ");
	switch (p.Type) {
	case "string":
	TT.Write("\" \"");
	break;
	case "byte[]":
	TT.Write("new byte[0]");
	break;
	default:
	TT.Write("null");
	break;
	}
	}
	}
	public override bool Equals(object obj) {
	return obj != null && _signature == ((FunctionInfo)obj)._signature;
	}
	public override int GetHashCode() {
	return _signature.GetHashCode();
	}
	}
	// Data structure to collect data about an action method
	class ActionMethodInfo: FunctionInfo {
	public ActionMethodInfo(CodeFunction2 method, ControllerInfo controller): base(method) {
	// Normally, the action name is the method name. But if there is an [ActionName] on
	// the method, get the expression from that instead
	ActionNameValueExpression = '"' + Name + '"';
	for (int i = 1; i <= method.Attributes.Count; i++) {
	var attrib = (CodeAttribute2)method.Attributes.Item(i);
	if (attrib.FullName == "System.Web.Mvc.ActionNameAttribute") {
	var arg = (CodeAttributeArgument)attrib.Arguments.Item(1);
	ActionNameValueExpression = arg.Value;
	}
	}
	}
	public string ActionName { get { return Name; } }
	public string ActionNameValueExpression { get; set; }
	}
	// Data about an ActionResult derived type
	class ResultTypeInfo {
	CodeType _codeType;
	public ResultTypeInfo(CodeType codeType) {
	_codeType = codeType;
	var ctor = GetElements<CodeFunction2>(_codeType.Members).FirstOrDefault(
	f => f.FunctionKind == vsCMFunction.vsCMFunctionConstructor);
	Constructor = new FunctionInfo(ctor);
	}
	public string Name { get { return _codeType.Name; } }
	public FunctionInfo Constructor { get; set; }
	public IEnumerable<FunctionInfo> AbstractMethods {
	get {
	return GetElements<CodeFunction2>(_codeType.Members).Where(
	f => f.MustImplement).Select(f => new FunctionInfo(f));
	}
	}
	}
	class MethodParamInfo {
	public string Name { get; set; }
	public string Type { get; set; }
	}
	#>

view raw T4MVC.tt hosted with ❤ by GitHub

Web Setup MSI woes on IIS7 + solution

Just a note to my future self and to anyone else who might stumble on this:

We created an MSI to install our MVC app, but the new test server refused to install it:

The Installer simply stopped, with an Installation interrupted message, and the application event log listed the following:

Windows Installer installed the product. Product Name: XXXXX. Product Version: x.y.z. Product Language: 1033. Installation success or error status: 1603.

The correct google search term here is: Installation success or error status: 1603.

It will lead you to the solution by Ben Noyce at NInitiative:

Long nights and story short, in order to install a web setup project on Windows Server 2008 and IIS 7, you need to install the IIS 6 Metabase Compatibility role service.

Thanks, Ben!

Making T4MVC comply with StyleCop

On a current MVC project we’re also using the excellent T4MVC template by David Ebbo.  StyleCop however, thinks the generated code is well, less than perfect – it generates some 500 warnings at the moment. 

The solution to this is a simple choice between two options:

Fix the TT file to generate StyleCop compliant code, or exclude the generated T4MVC.cs class from StyleCop.

The pragmatic choice here is of course to exclude the file.  But how?

I first tried to add <ExcludeFromStyleCop>true</ExcludeFromStyleCop> to the Compile entry in the csproj file. Unfortunately that only works with builds from OUTSIDE Visual Studio.

Sergey Shishkin has the answers:

Encapsulating the code in a region that contains the string “generated code” does the trick, but even easier is to simply put a // <auto-generated /> comment at the top of the generated file – which of course means edit the TT file to stick it there.

Would be nice to see this included in the next release….

ASP.NET MVC: TagBuilder Extension Methods

I wasn’t happy with the TagBuilder class, so I improved it… See gist below:

	using System.Web.Routing;
	using System.Web.Mvc;
	namespace MvcExtensions
	{
	/// <summary>
	/// TagBuilder Extension Methods meant to streamline its use.
	/// </summary>
	public static class TagBuilderExtensions
	{
	/// <summary>
	/// Similarly to <see cref="M:TagBuilder.MergeAttributes"/> merges the attributes passed to it but
	/// accepts the attributes in the form of an anonymous object, and also returns the <see cref="TagBuilder"/>
	/// instance, allowing chaining.
	/// </summary>
	/// <param name="tb">The <see cref="TagBuilder"/> instance to extend.</param>
	/// <param name="tagAttributes">The tag attributes.</param>
	/// <returns>
	/// The same <see cref="TagBuilder"/> instance
	/// </returns>
	public static TagBuilder WithAttributes(this TagBuilder tb, object tagAttributes)
	{
	tb.MergeAttributes(new RouteValueDictionary(tagAttributes));
	return tb;
	}
	/// <summary>
	/// Similarly to <see cref="M:TagBuilder.AddCssClass"/> adds inner Html but also returns the
	/// <see cref="TagBuilder"/> instance, allowing chaining.
	/// </summary>
	/// <param name="tb">The <see cref="TagBuilder"/> instance to extend.</param>
	/// <param name="cssClass">The CSS class.</param>
	/// <returns>
	/// The same <see cref="TagBuilder"/> instance
	/// </returns>
	public static TagBuilder WithCssClass(this TagBuilder tb, string cssClass)
	{
	tb.AddCssClass(cssClass);
	return tb;
	}
	/// <summary>
	/// Similarly to <see cref="M:TagBuilder.GenerateId"/> generates the Id of the tag, but also
	/// returns the <see cref="TagBuilder"/> instance, allowing chaining.
	/// </summary>
	/// <param name="tb">The <see cref="TagBuilder"/> instance to extend.</param>
	/// <param name="cssClass">The id name.</param>
	/// <returns>
	/// The same <see cref="TagBuilder"/> instance
	/// </returns>
	public static TagBuilder WithGeneratedId(this TagBuilder tb, string name)
	{
	tb.GenerateId(name);
	return tb;
	}
	/// <summary>
	/// Similarly to <see cref="P:TagBuilder.IdAttributeDotReplacement"/> sets the id attribute dot replacement of the tag,
	/// but also returns the <see cref="TagBuilder"/> instance, allowing chaining.
	/// </summary>
	/// <param name="tb">The <see cref="TagBuilder"/> instance to extend.</param>
	/// <param name="idAttributeDotReplacement">The id attribute dot replacement.</param>
	/// <returns>
	/// The same <see cref="TagBuilder"/> instance
	/// </returns>
	public static TagBuilder WithIdAttributeDotReplacement(this TagBuilder tb, string idAttributeDotReplacement)
	{
	tb.IdAttributeDotReplacement = idAttributeDotReplacement;
	return tb;
	}
	/// <summary>
	/// Similarly to <see cref="P:TagBuilder.InnerHtml"/> sets the inner Html of the tag, but also returns
	/// the <see cref="TagBuilder"/> instance, allowing chaining.
	/// </summary>
	/// <param name="tb">The <see cref="TagBuilder"/> instance to extend.</param>
	/// <param name="innerHtml">The inner HTML.</param>
	/// <returns>
	/// The same <see cref="TagBuilder"/> instance
	/// </returns>
	public static TagBuilder WithInnerHtml(this TagBuilder tb, string innerHtml)
	{
	tb.InnerHtml = innerHtml;
	return tb;
	}
	/// <summary>
	/// Similarly to <see cref="M:TagBuilder.SetInnerText"/> sets the inner text of the tag, but also returns
	/// the <see cref="TagBuilder"/> instance, allowing chaining.
	/// </summary>
	/// <param name="tb">The <see cref="TagBuilder"/> instance to extend.</param>
	/// <param name="innerHtml">The inner text.</param>
	/// <returns>
	/// The same <see cref="TagBuilder"/> instance
	/// </returns>
	public static TagBuilder WithInnerText(this TagBuilder tb, string innerText)
	{
	tb.SetInnerText(innerText);
	return tb;
	}
	}
	}

view raw TagBuilderExtensions.cs hosted with ❤ by GitHub

This kind of thing could be useful in MOSS WebPart development as well…

ASP.NET MVC: Corrected Moq based MvcMockHelpers

I've been reading the mostly excellent Pro ASP.NET MVC Framework book by Steven Sanderson, but when trying to implement some of his code in my current project (yay – not SharePoint for a change), I encountered a bug by omission.  In Chapter 8, page 248, he shows how to mock the HttpContext using Moq.  Works great for most urls, but bombs if you include a Query String parameter.

 

Steve Michelotti pointed me to what he uses: the Hanselman/Kzu based MvcMockHelpers class.  Unfortunately it too has some issues (at least as written in Scott’s old post), so below is an updated version.  Get it from github.

 

	using System;
	using System.Collections.Specialized;
	using System.Web;
	using System.Web.Mvc;
	using System.Web.Routing;
	using Moq;
	namespace Mvc.Web.Tests
	{
	public static class MvcMockHelpers
	{
	public static HttpContextBase FakeHttpContext()
	{
	var context = new Mock<HttpContextBase>();
	var request = new Mock<HttpRequestBase>();
	var response = new Mock<HttpResponseBase>();
	var session = new Mock<HttpSessionStateBase>();
	var server = new Mock<HttpServerUtilityBase>();
	context.Setup(ctx => ctx.Request).Returns(request.Object);
	context.Setup(ctx => ctx.Response).Returns(response.Object);
	context.Setup(ctx => ctx.Session).Returns(session.Object);
	context.Setup(ctx => ctx.Server).Returns(server.Object);
	return context.Object;
	}
	public static HttpContextBase FakeHttpContext(string url)
	{
	HttpContextBase context = FakeHttpContext();
	context.Request.SetupRequestUrl(url);
	return context;
	}
	public static void SetFakeControllerContext(this Controller controller)
	{
	var httpContext = FakeHttpContext();
	ControllerContext context = new ControllerContext(new RequestContext(httpContext, new RouteData()), controller);
	controller.ControllerContext = context;
	}
	static string GetUrlFileName(string url)
	{
	if (url.Contains("?"))
	return url.Substring(0, url.IndexOf("?"));
	else
	return url;
	}
	static NameValueCollection GetQueryStringParameters(string url)
	{
	if (url.Contains("?"))
	{
	NameValueCollection parameters = new NameValueCollection();
	string[] parts = url.Split("?".ToCharArray());
	string[] keys = parts[1].Split("&".ToCharArray());
	foreach (string key in keys)
	{
	string[] part = key.Split("=".ToCharArray());
	parameters.Add(part[0], part[1]);
	}
	return parameters;
	}
	else
	{
	return null;
	}
	}
	public static void SetHttpMethodResult(this HttpRequestBase request, string httpMethod)
	{
	Mock.Get(request).Setup(req => req.HttpMethod).Returns(httpMethod);
	}
	public static void SetupRequestUrl(this HttpRequestBase request, string url)
	{
	if (url == null)
	throw new ArgumentNullException("url");
	if (!url.StartsWith("~/"))
	throw new ArgumentException("Sorry, we expect a virtual url starting with \"~/\".");
	var mock = Mock.Get(request);
	mock.Setup(req => req.QueryString).Returns(GetQueryStringParameters(url));
	mock.Setup(req => req.AppRelativeCurrentExecutionFilePath).Returns(GetUrlFileName(url));
	mock.Setup(req => req.PathInfo).Returns(string.Empty);
	}
	}
	}

view raw MvcMockHelpers.cs hosted with ❤ by GitHub

Use and abuse at will