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European ASP.NET MVC 4 Hosting - Amsterdam :: Using Dependency Injection with AutoFac in the ASP.NET Web API

clock March 26, 2013 11:07 by author Scott

This post is going to tell you exactly how to use the same in DI container in your MVC Controllers and your Web Api controllers, so you can share the same set of services. Of course after you have seen this, it will be immediately clear how to use different containers in both, if you like to do so. The example will be implemented using the Repository pattern, AutoFac, Entity Framework 5 and the EF powertools.

Setting things up

Fire up Visual Studio 2012 RC and start a new MVC 4 empty project:

Call it anything you like. After Visual Studio is done creating your project layout, we’re going to implement the Repository pattern. In a production application you’ll probably want to split your solution into multiple projects, but for now we’re going to do everything in one. First, make sure you have installed the Entity Framework powertools using the Visual Studio extension manager:

After this, use NuGet to add EF 5.0 support to your MVC project:

If you don’t see the PreRelease version, make sure to set the combobox in the top of the screen to “Include Prerelease”. There is one last thing left to do to complete the setup and that’s adding a DI container to our project. You can of course use anything you like, but I’m going with AutoFac. If you want to find out why you should use AutoFac too you can read this. In short, AutoFac combines a full feature set with great performance, is easy to configure and has great support. You can use NuGet to add AutoFac to your project:

Make sure you get the “MVC 4 RC Integration” package. This will provide you with easy integration and will also install the basic AutoFac DLL’s. That’s it, now we’ve got everything we need (assuming you already have a database).

Creating the repository

Create the following interface:

01           using System;
02           using System.Collections.Generic;
03           using System.Linq;
04           using System.Text;
05           using System.Threading.Tasks;
07           namespace Adventureworks.DAL.Repository
08           {
09               public interface IRepository<in TKey,TEntity>    {
10                   void Add(TEntity entity);
11                   void Delete(TEntity entity);
12                   void Update(TEntity entity);
13                   IEnumerable<TEntity> GetAll();
14                   TEntity GetById(TKey id);
15               }
16           }

Now let’s implement it using EF 5.0 and the powertools. I really like the Code only feature of the new Entity Framework release, totally removing the .edmx file. But until recently you couldn’t reverse engineer code only from an existing database. Luckily the EF powertools fix this for us. Right click your Web Project and go the “Entity Framework” menu and select “Reverse engineer Code first”:

Select the database of your choosing and let the tooling do it’s magical stuff. After all is said and done, you will have Entity classes, a DBContext and a file containing the code for configuring the DbContext. Create a class which implements the IRepository interface like this:

1              using System;
2              using System.Collections.Generic;
3              using System.Data.Entity.Infrastructure;
4              using System.Linq;
5              using System.Text;
6              using System.Threading.Tasks;
7              using Adventureworks.Domain;
9              namespace Adventureworks.DAL.Repository.EntityFramework
10           {
11               public class EntityFrameworkProductRepository : IRepository<int,Product>
12               {
14                   public void Add(Product entity)
15                   {
16                       PerformAction((context) =>
17                           {
18                               context.Product.Add(entity);
19                               context.SaveChanges();
20                           });
22                   }
24                   public void Delete(Product entity)
25                   {
26                       PerformAction((context) =>
27                           {
28                               context.Product.Attach(entity);
29                               context.Product.Remove(entity);
30                               context.SaveChanges();
31                           });
32                   }
34                   public void Update(Product entity)
35                   {
36                       PerformAction((context) =>
37                           {
38                              context.Product.Attach(entity);
39                              context.Entry(entity).State = System.Data.EntityState.Modified;
40                              context.SaveChanges();
41                           });
42                   }
44                   public IEnumerable<Product> GetAll()
45                   {
46                       return Read((context) =>
47                           {
48                               return context.Product.AsNoTracking().ToArray();
49                           });
51                   }
53                   public Product GetById(int id)
54                   {
55                       return Read((context) =>
56                           {
57                               Product p = context.Product.AsNoTracking().SingleOrDefault((pr) => pr.ProductID ==
58                               if (p == null)
59                               {
60                                   throw new ArgumentException("Invalid id: " + id);
61                               }
62                               return p;
63                           });
64                   }
66                   private void PerformAction(Action<AdventureWorks2012Entities> toPerform)
67                   {
68                       using (AdventureWorks2012Entities ents = new AdventureWorks2012Entities())
69                       {
70                           ConfigureDbContext(ents);
71                           toPerform(ents);
72                       }
73                   }
75                   private T Read<T>(Func<AdventureWorks2012Entities, T> toPerform)
76                   {
77                       using (AdventureWorks2012Entities ents = new AdventureWorks2012Entities())
78                       {
79                           ConfigureDbContext(ents);
80                           return toPerform(ents);
81                       }
82                   }
84                   private void ConfigureDbContext(AdventureWorks2012Entities ents)
85                   {
86                       ents.Configuration.AutoDetectChangesEnabled = false;
87                       ents.Configuration.LazyLoadingEnabled = false;
88                       ents.Configuration.ProxyCreationEnabled = false;
89                       ents.Configuration.ValidateOnSaveEnabled = true;
91                   }
93               }
94           }

There are a couple of things going on here. Starting on line 66 I’ve created three helper methods which set up the DbContext correctly and dispose it. These methods are used by calling them and supplying a Lambda which uses the DbContext. Let’s take a look at the GetAll method on line 44. You can see that I don’t use change tracking. Change tracking is something you get as a bonus when using the EF, I like to abstract this away with my Repository implementation. It’s also completely useless in a web application since all state is gone after each request and it has a lot of overhead. “But how do you update if you don’t have any change tracking?” you ask?, well take a look at the Update method on line 34. Just set the whole entity as “Modified” and the EF will perform an update for you.

Creating a Web API Controller

Now let’s create a Web API controller to perform some CRUD functionality:

Implement it like this:

1              using System;
2              using System.Collections.Generic;
3              using System.Linq;
4              using System.Net;
5              using System.Net.Http;
6              using System.Web.Http;
7              using Adventureworks.DAL.Repository;
8              using Adventureworks.Domain;
10           namespace Adventureworks.Web.Controllers
11           {
12               public class ProductController : ApiController
13               {
15                   private IRepository<int, Product> _productRepository;
17                   public ProductController(IRepository<int,Product> repository)
18                   {
19                       _productRepository = repository;
20                   }
22                   public IEnumerable<Product> Get()
23                   {
24                       return _productRepository.GetAll();
25                   }
27                   public Product Get(int id)
28                   {
29                       try
30                       {
31                           return _productRepository.GetById(id);
32                       }
33                       catch (ArgumentException ex)
34                       {
35                           throw new HttpResponseException(new HttpResponseMessage(HttpStatusCode.NotFound){ Content = new StringContent(ex.Message)});
36                       }
37                   }
39                   // POST api/product
40                   public HttpResponseMessage Post(Product product)
41                   {
42                      ValidateProduct();
43                      _productRepository.Add(product);
44                      return new HttpResponseMessage(HttpStatusCode.Created) { Content = new StringContent(Url.Route("DefaultApi",
45                          new{controller="Product",id=product.ProductID}))};
46                   }
48                   // PUT api/product/5
49                   public HttpResponseMessage Put(Product product)
50                   {
51                       ValidateProduct();
52                       _productRepository.Update(product);
53                       return new HttpResponseMessage(HttpStatusCode.NoContent);
54                   }
56                   // DELETE api/product/5
57                   public HttpResponseMessage Delete(Product product)
58                   {
59                       _productRepository.Delete(product);
60                       return new HttpResponseMessage(HttpStatusCode.NoContent);
61                   }
63                   private void ValidateProduct()
64                   {
65                       if (!ModelState.IsValid)
66                       {
67                           throw new HttpResponseException(new HttpResponseMessage(HttpStatusCode.BadRequest));
68                       }
69                   }
70               }
71           }

Let’s go to line 65 first. This is a helper method which uses the built in Model Binding feature to validate the incoming product. This means that you can just decorate your Product class with attributes or implement IValidatable object to implement data validation. Keeping up with the spirit of rest, this method will generate a BadRequest statuscode when the incoming product is invalid. Now jump up to the constructor. The controller only works with an IRepository interface to perform the crud functionality, it never knows anything about the Entity Framework. This is the key advantage of DI, as we can now mock the repository and unittest our controller. Now jump to line 42; The Post method. A post in REST means an insert. It’s also in the spirit of REST that you use the HTTP statuscodes to signal what’s going on. When you create new content, you should provide the caller with an url to the new content. Similar to the Post method, you can see that the other methods also use statuscodes to indicate if everything went well or not.

Wiring everything up

Last thing left to do is to configure our container and integrate it with MVC. Here’s my Global.asax:

1              using System;
2              using System.Collections.Generic;
3              using System.Linq;
4              using System.Web;
5              using System.Web.Http;
6              using System.Web.Mvc;
7              using System.Web.Routing;
8              using Adventureworks.DAL.Repository.EntityFramework;
9              using Adventureworks.Web.Services;
10           using Autofac;
11           using Autofac.Integration.Mvc;
12           using Autofac.Integration.WebApi;
14           namespace Adventureworks.Web
15           {
16               // Note: For instructions on enabling IIS6 or IIS7 classic mode,
17               // visit
18               public class MvcApplication : System.Web.HttpApplication
19               {
20                   protected void Application_Start()
21                   {
22                       AreaRegistration.RegisterAllAreas();
24                       FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
25                       RouteConfig.RegisterRoutes(RouteTable.Routes);
27                       var builder = new ContainerBuilder();
28                       builder.RegisterControllers(typeof(MvcApplication).Assembly);
29                       builder.RegisterApiControllers(typeof(MvcApplication).Assembly);
30                       builder.RegisterType<EntityFrameworkProductRepository>().AsImplementedInterfaces().InstancePerApiRequest().InstancePerHttpRequest();
31                       var container = builder.Build();
33                       DependencyResolver.SetResolver(new AutofacDependencyResolver(container));
34                       GlobalConfiguration.Configuration.DependencyResolver = new AutofacWebApiDependencyResolver(container);
35                   }
36               }
37           }

First up are lines 28-32. This is the configuring of the AutoFac container. You register all the controllers for MVC and the Web API with two lines of code. This is done on lines 29 and 30. On line 31 I am registering the EntityFrameworkProductRepository in a per request scope, for MVC controllers and Web API controllers. On line 32 the container is built. On line 35 the container is registered for MVC controllers. On line 36 it’s registered for API controllers. This is what bites people the most. To use DI with MVC, you need a class which implements IDependencyResolver. To use DI with the ASP.NET Web API, you also need a class which implements IDependencyResolver. But these interfaces aren’t the same and they live in different namespaces. The dependency resolvers are also registered differently as you can see on lines 35 and 36. Luckily, AutoFac’s MVC integration package which we installed earlier, contains dependency resolvers for use to use, otherwise we had to implement these ourselves. That’s all! Now go out and test your REST service with your favorite tool.

European ASP.NET MVC 4 Hosting - Amsterdam :: Simple Wizard Form in ASP.NET MVC 4

clock February 21, 2013 05:53 by author Scott

For small MVC sample application I’m fiddling with on my spare time, I wanted to be able to split my form up in smaller parts, much like the ASP.NET Wizard Control that is available to you when you are using Web Forms.

Basically I wanted a pretty simple Wizard, where I break up the input fields in a form in two or more steps, and display a summary at the end. I wanted the users to be able to step through the wizard without filling in required fields (just so they can get a grasp of the amount of info they would need to fill in), but of course they should be stopped when trying to submit it if anything is missing. I also wanted to avoid going to the server to retrieve a partial view for the summary.

The model I will use is pretty straight forward. It contains some fields for the user to fill inn, that I will split up in “Personal Details”, “Address” and “Contact Details”:

public class SimpleWizardFormModel : IValidatableObject
    [Display(Name = "First Name")]
    public string FirstName { get; set; }

    [Display(Name = "Last Name")]
    public string LastName { get; set; }

    [Display(Name = "Street Address")]
    public string Address { get; set; }

    [Display(Name = "Postal Code")]
    public string PostalCode { get; set; }

    [Display(Name = "City")]
    public string City { get; set; }

    [Display(Name = "Home Phone")]
    public string Phone { get; set; }

    [Display(Name = "Mobile Phone")]
    public string Mobile { get; set; }

    [Display(Name = "I'm at least 18 years old?")]
    public bool HasTurned18 { get; set; }

    public IEnumerable<ValidationResult> Validate(ValidationContext validationContext)
        if (!HasTurned18)
            yield return new ValidationResult("You must be 18 or older.", new[] { "HasTurned18" });

The view isn’t very complicated either:

@model SimpleWizardFormModel
@section head
    <style type="text/css">
        .wizard-step { display: none; }
        .wizard-confirmation { display: none; }
        .wizard-nav {  }
        .wizard-nav input[type="button"] { width: 100px; }
@section script
    <script type="text/javascript">
<h2>Simple Wizard Form</h2>
@using (Html.BeginForm())
        <div class="wizard-step">
            <h4>Personal Details</h4>
                    @Html.LabelFor(m => m.FirstName)
                    @Html.TextBoxFor(m => m.FirstName)
                    @Html.ValidationMessageFor(m => m.FirstName)
                    @Html.LabelFor(m => m.LastName)
                    @Html.TextBoxFor(m => m.LastName)
                    @Html.ValidationMessageFor(m => m.LastName)
                    @Html.LabelFor(m => m.HasTurned18)
                    @Html.CheckBoxFor(m => m.HasTurned18)
                    @Html.ValidationMessageFor(m => m.HasTurned18)
        <div class="wizard-step">
        <div class="wizard-step wizard-confirmation">
            <div id="field-summary"></div>
            <div id="validation-summary">
                <span class="message-error">Please correct the following errors;</span>
        <div class="wizard-nav">
            <input type="button" id="wizard-prev" value="<< Previous" />
            <input type="button" id="wizard-next" value="Next >>" />
            <input type="button" id="wizard-submit" value="Submit" />

I’ve cut out the javascript as I will get back to that later, as well as a couple of the wizard steps since they are look just like step 1 (just with other input fields). Inside my Layout.cshtml-file I’m importing jquery, jquery.validate, jquery.validate.unobtrusive, and rendering the “head”-section (in the head-tag) and “script”-section (just before body-close-tag) seen above.

The most important “feature” of the view are the divs which have been given the “wizard-step”-class. These contains the various input fields and will become the (as the class name suggests) steps in the wizard that is presented to the user. Initially all these divs are hidden from the user (note the display –> none in the css styles), and the javascript will take care of showing the div that represents the current wizard step to the user.

And now the stuff which actually performs some work, the javascript:

function DisplayStep() {
    var selectedStep = null;
    var firstInputError = $("input.input-validation-error:first"); // check for any invalid input fields
    if (firstInputError.length) {
        selectedStep = $(".wizard-confirmation");
        if (selectedStep && selectedStep.length) { // the confirmation step should be initialized and selected if it exists present
        else {
            selectedStep = firstInputError.closest(".wizard-step"); // the first step with invalid fields should be displayed
    if (!selectedStep || !selectedStep.length) {
        selectedStep = $(".wizard-step:first"); // display first step if no step has invalid fields

    $(".wizard-step:visible").hide(); // hide the step that currently is visible
    selectedStep.fadeIn(); // fade in the step that should become visible

    // enable/disable the prev/next/submit buttons
    if (selectedStep.prev().hasClass("wizard-step")) {
    else {
    if ("wizard-step")) {
    else {

The first method in my javascript, called “DisplayStep”, takes care of displaying the correct wizard step (typically this means the first step) when the view is loaded. if the view is loaded after submitting it to the server and server validation errors are found however, it will show the confirmation step if there is one, and if not it will show the first step which contains erroneous input. Once the correct step to show is found, it will decide where this step is located in relation to the other steps and show or hide the “previous”, “next” and “submit” buttons.

function PrevStep() {
    var currentStep = $(".wizard-step:visible"); // get current step

    if (currentStep.prev().hasClass("wizard-step")) { // is there a previous

        currentStep.hide().prev().fadeIn();  // hide current step and display previous step

        $("#wizard-submit").hide(); // disable wizard-submit button
        $("#wizard-next").show(); // enable wizard-next button

        if (!currentStep.prev().prev().hasClass("wizard-step")) { // disable wizard-prev button?

The “PrevStep” method is pretty straight forward. It just finds the current step, hides it, shows the previous one, and shows/hides the buttons. No validation is performed before navigation to the previous step, but if desired, this could be done just like in the “NextStep” shown below.

function NextStep() {
    var currentStep = $(".wizard-step:visible"); // get current step

    var validator = $("form").validate(); // get validator
    var valid = true;
    currentStep.find("input:not(:blank)").each(function () { // ignore empty fields, i.e. allow the user to step through without filling in required fields
        if (!validator.element(this)) { // validate every input element inside this step
            valid = false;
    if (!valid)
        return; // exit if invalid

    if ("wizard-step")) { // is there a next step?

        if ("wizard-confirmation")) { // is the next step the confirmation?

        currentStep.hide().next().fadeIn();  // hide current step and display next step

        $("#wizard-prev").show(); // enable wizard-prev button
        if (!"wizard-step")) { // disable wizard-next button and enable wizard-submit?

The “NextStep” is a little more complicated. In addition to performing pretty much the same tasks as the “PrevStep” (only the opposite), it validates all input fields in the current step, and if there are any errors, you won’t be allowed to go to the next step. It only validates none empty fields however, i.e. the required rule if applicable for a given field isn’t evaluated. This is done because I wanted the user to be able to step through the entire form to see how much needs to be filled in (you can easily change this by changing the part of the script where the input fields are found). If the next step has been given the “wizard-confirmation”-class a call is also made to setup/update the confirmation (the specifics of this function will be explained further down).

function Submit() {
    if ($("form").valid()) { // validate all fields, including blank required

    else {
        DisplayStep(); // validation failed, redisplay correct step

The last function related to navigation is “Submit”. This function validates the entire form (including required fields), and submits the form if all is good, or calls “DisplayStep” to show the confirmation step (if there is one), or the first step with errors on it (in cases where there are no confirmation step).

function UpdateConfirmation() {
    var fieldList = $("<ol/>");
    $(".wizard-step:not(.wizard-confirmation)").find("input").each(function () {
        var input = this;
        var value;
        switch (input.type) {
        case "hidden":
        case "checkbox":
            value = input.checked;
            value = input.value;
        var name = $('label[for="' + + '"]').text();
        fieldList.append("<li><label>" + name + "</label><span>" + value + "&nbsp;</span></li>");

function UpdateValidationSummary() {
    var validationSummary = $("#validation-summary");
    if (!validationSummary.find(".validation-summary-errors").length) { // check if validation errors container already exists, and if not create it
        $('<div class="validation-summary-errors"><ul></ul></div>').appendTo(validationSummary);
    var errorList = $(".validation-summary-errors ul");
    errorList.find("li.field-error").remove(); // remove any field errors that might have been added earlier, leaving any server errors intact
    $('.field-validation-error').each(function () {
        var element = this;
        $('<li class="field-error">' + element.innerText + '</li>').appendTo(errorList); // add the current field errors
    if (errorList.find("li").length) {
        $("#validation-summary span").show();
    else {
        $("#validation-summary span").hide();

The “UpdateConfirmation” function (and the “UpdateValidationSummary”-function called by this function) takes care of setting up / displaying the confirmation step. The “UpdateValidationSummary” function finds all input errors (if any) and adds them to the server validation error list (creating this list if it doesn’t already exist). The “UpdateConfirmation” function, in addition to calling “UpdateValidationSummary”, finds all input fields and associated labels and created a list with them that is displayed to the user.

$(function () {
    // attach click handlers to the nav buttons
    $("#wizard-prev").click(function () { PrevStep(); });
    $("#wizard-next").click(function () { NextStep(); });
    $("#wizard-submit").click(function () { Submit(); });

    // display the first step (or the confirmation if returned from server with errors)

Last part of the javascript is where we hook up handlers for the navigation buttons and calls the function to display the first (or correct) step when the view is first loaded.

That was all the code needed, not to bad if I say so myself.

A couple of screens to show how it looks in action (first picture shows one of the steps, while the second picture shows the confirmation step):

As I said in the beginning, this wizard is pretty basic, but it works pretty good.


European ASP.NET MVC 4 Hosting - Amsterdam :: Optimization Performance MVC 4 with Bundling and Minification

clock February 12, 2013 04:37 by author Scott

MVC4 and .Net Framework 4.5 offer bundling and minification techniques that reduce the number of request to the server and size of requested CSS and JavaScript library, which improve page loading time.

What is Bundle?

A bundle is a logical group of files that is loaded with a single HTTP request. You can create style and script bundle for css and javascripts respectively by calling BundleCollection class Add() method with in BundleConfig.cs file.

Creating Style Bundle

bundles.Add(new StyleBundle("~/Content/css").Include("~/Content/site.min.css",

Creating Script Bundle

bundles.Add(new ScriptBundle("~/bundles/jqueryval").Include(

Above both the bundles are defined with in BundleConfig class as shown below:

public class BundleConfig
 public static void RegisterBundles(BundleCollection bundles)
 bundles.Add(new StyleBundle("~/Content/css").Include("~/Content/site.min.css",

bundles.Add(new ScriptBundle("~/bundles/jqueryval").Include(

Creating Bundle using the "*" Wildcard Character

"*" wildcard character is used to combines the files that are in the same directory and have same prefix or suffix with its name. Suppose you want to add all the scripts files that exist with in "~/Script" directory and have "jquery" as prefix then you can create bundle like below:

bundles.Add(new ScriptBundle("~/bundles/jqueryval").Include("~/Scripts/jquery*.js"));

You can also add all the css that exist with in "~/Content" directory and have ".css" extension(as suffix) like below:

bundles.Add(new StyleBundle("~/Content/css").Include("~/Content/*.css"));

Registering Bundle

All bundles are registered with in Application_Start event of Global.asax file of you web application.

protected void Application_Start()
 // Other Code is removed for clarity


Minification is technique for removing unnecessary characters (like white space, newline, tab) and comments from the JavaScript and CSS files to reduce the size which cause improved load times of a webpage. There are so many tools for minifying the js and css files. JSMin and YUI Compressor are two most popular tools for minifying the js and css files.

You can also add WebEssentials2012.vsix extension to your VS2012 for minifying the js and css files. This is a great extension for VS2012 for playing with js and css.

Minification with VS2012 and WebEssentials 2012 extension

I would like to share how can you make minify version of you css file using WebEssentials extension and VS2012. This minify version will updated automatically if you will make change in original css file.

Performance Optimization with Bundling and Minification

I have done a performance test on a MVC4 application with & without bundling and minification. I have noticed the below result.

Without Bundling and Minification

I have the below css and js files on the layout page and run the application in chrome browser and test no of request and loding time using chrome developer tools as shown below.

<link href="~/Content/Site.css" rel="stylesheet"/>
<link href="~/Content/MyStyle.css" rel="stylesheet"/>
<script src="~/Scripts/jquery-1.7.1.js"></script>
<script src="~/Scripts/jquery-ui-1.8.20.js"></script>
<script src="~/Scripts/jquery.validate.js"></script>
<script src="~/Scripts/jquery.validate.unobtrusive.js"></script>

In this test, I have seen, There are 7 request, total data size is 3.96KB and loading time is approximate 296ms.

With Bundling and Minification

I have run the above application with Bundling and Minification of css and js files and test no of request and loding time using chrome developer tools as shown below.


In this test, I have seen, There are only 3 request, total data size is 2.67KB and loading time is approximate 80ms. In this way by using bundling and minification you have reduced the total no of request, size and loading time.

Enabling Bundling and Minification in debug mode

Bundling and minification doesn't work in debug mode. So to enable this featues you need to add below line of code with in Application_Start event of Global.asax.

protected void Application_Start()
 //Enabling Bundling and Minification
 BundleTable.EnableOptimizations = true;
 // Other Code is removed for clarity

Busting Browser's Cache by Bundling

As you know browsers cache resources based on URLs. When a web page requests a resource, the browser first checks its cache to see if there is a resource with the matched URL. If yes, then it simply uses the cached copy instead of fetching a new one from server. Hence whenever you change the content of css and js files will not reflect on the browser. For this you need to force the browser for refreshing/reloading.

But bundles automatically takes care of this problem by adding a hashcode to each bundle as a query parameter to the URL as shown below. Whenever you change the content of css and js files then a new has code will be generated and rendered to the page automatically. In this way, the browser will see a different url and will fetch the new copy of css and js.

I hope you will enjoy the tips while performance optimization of your MVC4 application.


European ASP.NET MVC 4 Hosting - Amsterdam :: jQuery UI Datepicker in MVC 4 Issue

clock January 29, 2013 08:02 by author Scott

I believe some of you will find this issue. If you create a MVC 4 application using "Internet" template, you will find the "BundleConfig.cs" file in the "App_Start" folder; open it.

You will notice there is a total of 6 bundles (jQuery and CSS) being processed. Now, open the "_Layout.cshtml" file and look at this image:

You will notice only three bundles are added by default. We have to add 2 more to enable the use of Datepicker.

Note to use the same ordering.

Now, on the view page use as follows:

Now if you run the application you will see your Datepicker working.

Hope this helps. Thanks.


European ASP.NET MVC 4 Hosting - Amsterdam :: Seed Users and Roles with MVC 4, SimpleMembershipProvider, SimpleRoleProvider, EntityFramework 5 CodeFirst, and Custom User Properties

clock January 21, 2013 06:43 by author Scott

Today post, I will show you how to integrate EF5 CodeFirst nicely with SimpleMembership and at the same time, seeding some of your users, roles and associating users to roles while supporting custom fields/properties during registration.

I think this is a nice to have, especially during PoC development where you could be developing features that depend on authentication and authorization while making schema changes with EF CodeFirst. The last thing you want to do is run update-database for migrations and have to manually re-insert/re-seed all your users, roles and associating the two every time you ran migrations (e.g. update-database -force from the Package Manager Console).

First, create an “Internet Application” ASP.NET MVC4 Project, because this is the only out of the box MVC template that has the new SimpleMembershipProvider wired up out of the box. One of the features I like the most about the SimpleMembershipProvider is it gives you total control of the highly requested “User” table/entity. Meaning you integrate SimpleMembershipProvider with your own user table, as long as it has a UserId and UserName fields in your table.

Explicitly wire up the providers even though this is implied, so that when do run the “update-database” command from the Package Manager Console for migrations we can use the native “Roles” Api.

In the “System.Web” Section add:

01    <roleManager enabled="true" defaultProvider="SimpleRoleProvider">
02      <providers>
03        <clear/>
04        <add name="SimpleRoleProvider" type="WebMatrix.WebData.SimpleRoleProvider, WebMatrix.WebData"/>
05      </providers>
06    </roleManager>
07    <membership defaultProvider="SimpleMembershipProvider">
08      <providers>
09        <clear/>
10        <add name="SimpleMembershipProvider" type="WebMatrix.WebData.SimpleMembershipProvider, WebMatrix.WebData" />
11      </providers>
12    </membership>

Let’s add a custom field to the User table by adding a Mobile property to the UserProfile entity (MVC4SimpleMembershipCodeFirstSeedingEF5/Models/AccountModel.cs).

1     [Table("UserProfile")]
2     public class UserProfile
3     {
4         [Key]
5         [DatabaseGeneratedAttribute(DatabaseGeneratedOption.Identity)]
6         public int UserId { get; set; }
7         public string UserName { get; set; }
8         public string Mobile { get; set; }
9     }

Enable EF5 CodeFirst Migrations

Seed your Roles and any Users you want to provision, also note the WebSecurity.InitializeDatabaseConnection method we are invoking. This method is what tells SimpleMembership which table to use when working with Users and which columns are for the UserId and UserName. I’m also going to demonstrate how you can hydrate additional custom columns such as requiring a User’s mobile number when registering on the site.

01    #region
03    using System.Data.Entity.Migrations;
04    using System.Linq;
05    using System.Web.Security;
06    using MVC4SimpleMembershipCodeFirstSeedingEF5.Models;
07    using WebMatrix.WebData;
09    #endregion
11    namespace MVC4SimpleMembershipCodeFirstSeedingEF5.Migrations
12    {
13        internal sealed class Configuration : DbMigrationsConfiguration<UsersContext>
14        {
15            public Configuration()
16            {
17                AutomaticMigrationsEnabled = true;
18            }
20            protected override void Seed(UsersContext context)
21            {
22                WebSecurity.InitializeDatabaseConnection(
23                    "DefaultConnection",
24                    "UserProfile",
25                    "UserId",
26                    "UserName", autoCreateTables: true);
28                if (!Roles.RoleExists("Administrator"))
29                    Roles.CreateRole("Administrator");
31                if (!WebSecurity.UserExists("lelong37"))
32                    WebSecurity.CreateUserAndAccount(
33                        "lelong37",
34                        "password",
35                        new {Mobile = "+19725000000"});
37                if (!Roles.GetRolesForUser("lelong37").Contains("Administrator"))
38                    Roles.AddUsersToRoles(new[] {"lelong37"}, new[] {"Administrator"});
39            }
40        }
41    }

Now, run the update-database -verbose command from Package Manager Console, we are using the -verbose switch so that we can get better visibility on what’s getting executed on SQL. Notice the Mobile field is being created.

Let’s go ahead and do a sanity check and make sure all of our Users and Roles were provisioned correctly from the Seed method in our migration configuration, by executing a few queries.

01           SELECT TOP 1000 [UserId]
02                 ,[UserName]
03                 ,[Mobile]
04             FROM [aspnet-MVC4SimpleMembershipCodeFirstSeedingEF5].[dbo].[UserProfile]
06             SELECT TOP 1000 [RoleId]
07                 ,[RoleName]
08             FROM [aspnet-MVC4SimpleMembershipCodeFirstSeedingEF5].[dbo].[webpages_Roles]
10             SELECT TOP 1000 [UserId]
11                 ,[RoleId]
12             FROM [aspnet-MVC4SimpleMembershipCodeFirstSeedingEF5].[dbo].[webpages_UsersInRoles]


- Users were inserted
- Roles were provisioned
- The user “LeLong37″ was added and associated to the Administrator role

Finally for a sanity check, let’s go ahead and run the app and sign-in with the provisioned user from our Seed method.

One last thing, let’s go ahead and modify our Register view, Register model and AccountController to gather the user’s mobile number during registration.

Register View (Register.cshtml)

01           @model MVC4SimpleMembershipCodeFirstSeedingEF5.Models.RegisterModel
02           @{
03               ViewBag.Title = "Register";
04           }
06           <hgroup class="title">
07               <h1>@ViewBag.Title.</h1>
08               <h2>Create a new account.</h2>
09           </hgroup>
11           @using (Html.BeginForm()) {
12               @Html.AntiForgeryToken()
13               @Html.ValidationSummary()
15               <fieldset>
16                   <legend>Registration Form</legend>
17                   <ol>
18                       <li>
19                           @Html.LabelFor(m => m.UserName)
20                           @Html.TextBoxFor(m => m.UserName)
21                       </li>
22                       <li>
23                           @Html.LabelFor(m => m.Password)
24                           @Html.PasswordFor(m => m.Password)
25                       </li>
26                       <li>
27                           @Html.LabelFor(m => m.ConfirmPassword)
28                           @Html.PasswordFor(m => m.ConfirmPassword)
29                       </li>
30                       <li>
31                           @Html.LabelFor(m => m.Mobile)
32                           @Html.TextBoxFor(m => m.Mobile)
33                       </li>
34                   </ol>
35                   <input type="submit" value="Register" />
36               </fieldset>
37           }
39           @section Scripts {
40               @Scripts.Render("~/bundles/jqueryval")
41           }

Register model (AccountModel.cs)

01           public class RegisterModel
02           {
03               [Required]
04               [Display(Name = "User name")]
05               public string UserName { get; set; }
07               [Required]
08               [StringLength(100, ErrorMessage = "The {0} must be at least {2} characters long.", MinimumLength = 6)]
09               [DataType(DataType.Password)]
10              [Display(Name = "Password")]
11               public string Password { get; set; }
13               [DataType(DataType.Password)]
14               [Display(Name = "Confirm password")]
15               [Compare("Password", ErrorMessage = "The password and confirmation password do not match.")]
16               public string ConfirmPassword { get; set; }
18               [Required]
19               [DataType(DataType.PhoneNumber)]
20               [Display(Name = "Mobile")]
21               public string Mobile { get; set; }
22           }

Register Action (AccountController.cs)

01           [HttpPost]
02           [AllowAnonymous]
03           [ValidateAntiForgeryToken]
04           public ActionResult Register(RegisterModel model)
05           {
06               if (ModelState.IsValid)
07               {
08                   // Attempt to register the user
09                   try
10                   {
11                       WebSecurity.CreateUserAndAccount(
12                           model.UserName,
13                           model.Password,
14                           new { Mobile = model.Mobile },
15                           false);
17                       WebSecurity.Login(model.UserName, model.Password);
18                       return RedirectToAction("Index", "Home");
19                   }
20                   catch (MembershipCreateUserException e)
21                   {
22                       ModelState.AddModelError("", ErrorCodeToString(e.StatusCode));
23                   }
24               }
26               // If we got this far, something failed, redisplay form
27               return View(model);
28           }

Finally, let’s register.

Let’s go ahead and run our SQL queries again and make sure the mobile number was actually saved to our UserProfile table during the registration.

Sweet! Registration successful, with mobile number saved to the UserProfile table.

Happy Coding…!


European ASP.NET MVC 4 Hosting - Amsterdam :: How to Create Mobile-Friendly HTML5 Forms with ASP.NET MVC 4

clock December 20, 2012 05:22 by author Scott

Mobilized Web Project Templates in Visual Studio 2010

The MVC 4 Mobile project template in Visual Studio 2010 contains all the files and references necessary to create a mobile-friendly Web site. When you create a new MVC 4 Mobile project, you’ll notice the familiar Models, Views and Controllers folders requisite for all MVC 4 projects (mobile or not) alongside new or modified scripts in the \Scripts folder. The \Scripts folder is where you’ll find the many jQuery files that serve as an API for building mobile-friendly Web sites, in particular, the file for development and its minified partner,, for deployment.

The \Content folder contains the location for style sheets, images and design-related files. Keep in mind that the style sheet defines a look and feel that specifically targets multiple mobile platforms. (See for a list of supported mobile and tablet platforms.) Much like JavaScript files, there are two style sheets: a fat version for development and a minified version for production.

Data Sources for HTML5 Forms: MVC 4 Models and ViewModels

Regardless of whether the target is mobile or desktop, HTML5 form elements map to a property of an entity in a model or a ViewModel. Because models expose varied data and data types, their representation in the user interface requires varied visual elements, such as text boxes, drop-down lists, check boxes and buttons. You can see the full set of available controls or elements at the jQuery Mobile Web site’s Form Element Gallery.

Simple forms that contain only text inputs and buttons are not the norm. Most forms have several types of data. Because of this data variety, coding and maintenance will be easier if you use a ViewModel. ViewModels are a combination of one or more types that together shape data that goes to the view for consumption and rendering.

Let’s say you want to build a quick way for users of your Web site to provide feedback. You need to collect the user’s name, the type of feedback the user wants to leave, the comment itself, and the priority of the comment—that is, whether or not it’s urgent. Figure 1 shows how the FeedbackModel class definition captures these features in simple data structures such as strings, an int, and a Boolean.

public class FeedbackModel
    public string CustomerName { get; set; }
    public int FeedbackType { get; set; }
    public string Message { get; set; }
    public bool IsUrgent { get; set; }

Figure 1 Feedback Model

The FeedbackType property in Figure 1 is of type int, and it corresponds to the value the user selects at run time in the feedback type drop-down list defined in Figure 3.

Figure 2 contains the definition for the FeedbackViewModel, which is a combination of the FeedbackModel described in Figure 1 and the FeedbackType class (described in Figure 3).

public class FeedbackViewModel
    public FeedbackModel Feedback { get; set; }
    public FeedbackType FeedbackType { get; set; }        
    public FeedbackViewModel()
        Feedback = new FeedbackModel();
        FeedbackType = new FeedbackType();

Figure 2 Feedback ViewModel Containing the FeedbackModel and FeedbackType Properties

The use of the FeedbackType property highlights the purpose of ViewModels, which, as I mentioned earlier, is to shape disparate data sources or models together to form a single consumable source from the view, using strongly typed syntax.

While you can represent most of the data in a simple ViewModel as text boxes or check boxes, you also need to capture the type of feedback, which is a list of name-value pairs exposed in code as a more complex dictionary object. Figure 3 shows the FeedbackType class and the dictionary contained within it.

public class FeedbackType
    public static SelectList FeedbackSelectList
        get { return new SelectList(FeedbackDictionary, "Value", "Key"); }
    public static readonly IDictionary<string, int> 
         FeedbackDictionary = new Dictionary<string, int> 
        { "Select the type ...", 0 },
        { "Leave a compliment", 1 },
        { "Leave a complaint", 2 },
        { "Leave some SPAM", 3 },
        { "Other", 9 }

Figure 3 FeedbackType Class, Including User Feedback Types

Now that the ViewModel is complete, the controller must pass it to the view for rendering. This straightforward code is in Figure 4 and is virtually identical to code that passes back a model.

public ActionResult Feedback()
    FeedbackViewModel model = new FeedbackViewModel();
    return View(model);

Figure 4 Controller Passing the ViewModel to the View

The next step in the process is setting up the view.

Creating HTML5 Mobile Forms in ASP.NET MVC 4 Views

You use the standard Add New Item command in Visual Studio 2010 to create feedback.cshtml, the view that will host your HTML5 form. ASP.NET MVC 4 favors a development technique named convention over configuration, and the convention is to match the name of the action method (Feedback) in the controller in Figure 4 with the name of the view, that is, feedback.cshtml. You can find the Add New Item command from the shortcut menu in Solution Explorer or the Project menu.

Inside the view, various ASP.NET MVC 4 Html Helpers present components of the FeedbackViewModel by rendering HTML elements that best fit the data types they map to in the ViewModel. For example, CustomerName renders as a standard single-line text box, while the Message property renders as a text area. FeedbackType renders as an HTML drop-down list so that the user can easily select an item rather than manually enter it. Figure 5 shows that there is no lack of Html Helpers to choose from for building forms.

@using (Html.BeginForm( "Results","Home")) {
        <legend>Leave some feedback!</legend>
        <div class="editor-label">
            @Html.LabelFor(model => model.Feedback.CustomerName)
        <div class="editor-field">
            @Html.TextBoxFor(model => model.Feedback.CustomerName)
            @Html.ValidationMessageFor(model => model.Feedback.CustomerName)
        <div class="editor-label">
            @Html.LabelFor(model => model.Feedback.FeedbackType)
        <div class="editor-field">
            @Html.DropDownListFor(model => model.Feedback.FeedbackType, 
            @Html.ValidationMessageFor(model => model.Feedback.FeedbackType)
        <div class="editor-label">
            @Html.LabelFor(model => model.Feedback.Message)
        <div class="editor-field">
            @Html.TextAreaFor(model => model.Feedback.Message)
            @Html.ValidationMessageFor(model => model.Feedback.Message)
        <div class="editor-label">
            @Html.LabelFor(model => model.Feedback.IsUrgent)
        <div class="editor-field">
            @Html.EditorFor(model => model.Feedback.IsUrgent)
            @Html.ValidationMessageFor(model => model.Feedback.IsUrgent)
            <input type="submit" value="Save" />

Figure 5 Html Helpers

With the ViewModel, controller and view, the form is now ready to test in the browser.

Testing the HTML Form on the Windows Phone 7 Emulator

Running a browser from Visual Studio is the easiest way to test the form, but the look and feel doesn’t behave in a very mobile-like way. For viewing the output and testing the form, the Windows Phone 7 Emulator works perfectly.

The HTML5 form displays in the Windows Phone 7 Emulator, as shown in Figure 6. You can enter a name, select a type from the drop-down list, fill in the comments and submit the form. Without modifications to the default styling provided by jQuery Mobile style sheets, the overall HTML5 form looks like the image on the left side of Figure 6. After tapping on the drop-down, the list of items looks like the image on the right side of Figure 6. Tapping a list item to select it returns the user to the form.

Figure 6 Interacting with the Windows Phone 7 Emulator

Submitting the form directs the browser to send the form information to the Home controller because of the call to the Html Helper, Html.BeginForm( "Results","Home"). The BeginForm method directs the HTTP request to the HomeController controller and then runs the Results action method, as the arguments denote.

Before the form submission process sends the HTTP Request to the server, however, client-side validation needs to happen. Annotating the data model accomplishes this task nicely. In addition to validation, data annotations provide a way for the Html.Label and Html.LabelFor helpers to produce customized property labels. Figure 7 details the entire data model with attributes for both validation and aesthetic annotations, and Figure 8 illustrates their results in the Windows Phone 7 Emulator.

public class FeedbackModel
    [Display(Name = "Who are you?")]
    public string CustomerName { get; set; }
    [Display(Name = "Your feedback is about...")]
    public int FeedbackType { get; set; }
    [Display(Name = "Leave your message!")]
    public string Message { get; set; }
    [Display(Name = "Is this urgent?")]
    public bool IsUrgent { get; set; }

Figure 7 Complete Data Model with Annotations

Figure 8 Left: Data Annotation Validations; Right: Data Annotation Aesthetics

You can customize the error message of the Required attribute to make the user interface friendlier. There are also many more annotations available in the System.Data.DataAnnotations namespace. If you can’t find a data annotation that fits your validation, aesthetic or security needs, inheriting from the System.Attribute class and extending it gives you that flexibility.

From the Phone to the Server Through HTTP POST

Once the user taps the submit button on the phone—and assuming the form passes validation—an HTTP POST Request is initiated and the data travels to the controller and action method designated in the Html.BeginForm method (as was shown in Figure 5). The sample from Figure 9 shows the controller code that lives in the HomeController and processes the data that the HTTP Request sends. Because of the power of ASP.NET MVC 4 model binding, you can access the HTML form values with the same strongly typed object used to create the form – your ViewModel.

public ActionResult Results(FeedbackViewModel model)
    // calls to code to update model, validation, LOB code, etc...
    return View(model);

Figure 9 Capturing the HTTP POST Data in the Controller

When capturing HTTP POST data, data annotations once again assist in the task, since action methods that have no attribute stating the type of HTTP verb default to HTTP GET. 


Creating shiny new forms for mobile devices as well as desktops has never been easier with the partnership between ASP.NET MVC 4, jQuery Mobile and HTML5.


European ASP.NET MVC 4 Hosting - Amsterdam :: ASP.NET MVC 4 Installation Error - Incompatible with .NET 4.5

clock November 1, 2012 09:22 by author Scott


When you install ASP.NET MVC 4 for Visual Studio 2010, If you are already using 4.5 framework in your box then you might get some strange errors.


In this case I already having .NET Framework 4.5 RC and I want to install ASP.NET MVC 4 for Visual Studio 2010.

I tried using the standalone installer for ASP.NET MVC 4 for Visual Studio 2010 but it throws me below error

Yes, you’ll see this strange error.
  The error said that Visual Studio 2010 needs .NET Framework 4.5. So, how to fix this error.


To resolve this issue I removed the .NET Framework
4.5 RC from local box.

And the second is uninstalling the .NET Framework 4.5 also removes pre-existing .NET Framework 4 files. If you want to go back to the .NET Framework 4, you must reinstall it and any updates to it.

If you are not installing .NET Framework 4.0 after uninstallation of Framework 4.5 then you will get another error saying something like 'Framework 4.0 not found".

Hope it helps!

European ASP.NET MVC 4 Hosting - Amsterdam :: How to Upgrade ASP.NET MVC 3 Project to ASP.NET MVC 4 Project

clock October 24, 2012 11:02 by author Scott

ASP.NET MVC 4 can be installed side by side with ASP.NET MVC 3 on the same computer, We can run both version of ASP.NET MVC projects on same machine.

If we would like upgrade an ASP.NET MVC 3 Project to ASP.NET MVC 4 Project, they are multiple ways. The simplest way to upgrade is to create a new ASP.NET MVC 4 project and copy all the views, controllers, code, and content files from the existing MVC 3 project to the new project and then to update the assembly references in the new project to match the old project. If you have made changes to the Web.config file in the MVC 3 project, you must also merge those changes into the Web.config file in the MVC 4 project.

To manually upgrade an existing ASP.NET MVC 3 application to version 4, do the following:

1. In all Web.config files in the project (there is one in the root of the project, one in the Views folder, and one in the Views folder for each area in your project), replace every instance of the following text (note: System.Web.WebPages, Version= is not found in projects created with Visual Studio 2012):

System.Web.Mvc, Version=

System.Web.WebPages, Version=
System.Web.Helpers, Version=
System.Web.WebPages.Razor, Version=

with the following corresponding text:

System.Web.Mvc, Version=

System.Web.WebPages, Version=
System.Web.Helpers, Version=
System.Web.WebPages.Razor, Version=

2. In the root Web.config file, update the webPages:Version element to "" and add a new PreserveLoginUrl key that has the value "

3. In Solution Explorer, right-click on the References and select Manage NuGet Packages. Search for Microsoft.AspNet.Mvc and install the Microsoft ASP.NET MVC 4 (RC) package, Click OK.

4. In Solution Explorer, right-click the project name and then select Unload Project. Then right-click the name again and select Edit ProjectName.csproj.

5. Locate the ProjectTypeGuids element and replace
{E53F8FEA-EAE0-44A6-8774-FFD645390401} with {E3E379DF-F4C6-4180-9B81-6769533ABE47}. Save the changes, close the project (.csproj) file you were editing, right-click the project, and then select Reload Project.

6. If the project references any third-party libraries that are compiled using previous versions of ASP.NET MVC, open the root Web.config file and add the following three bindingRedirect elements under the configuration section:

Looking for ASP.NET MVC 4 Hosting? Find an affordable ASP.NET MVC 4 Hosting with


European ASP.NET MVC 4 Hosting - Amsterdam :: ASP.NET Single Page Application

clock October 22, 2012 09:23 by author Scott

What is Single Page Application?

Single Page Application is an architecture for web applications. It combines the best of web and desktop, built with HTML5 and JavaScript.Single Page Applications are rich and responsive. You do not need any browser plug-ins needs to install for this architecture, it is a standard web technology that is going to work on any device, operating system and browser.

The reference for this post is from Steve Sanderson’s Techdays talk,

You can develop Single Page Applications using ASP.NET MVC\Web Forms technologies.


1. Great user experience
– It means speed, when it comes to changing of display of user interface and navigate around, we want an instance response from the application which you can get from this architecture.

2. Run on any device

3. Working off-line
– It is an interesting benefit which is just becoming possible now.

4. App-store deployable
- It is bit advanced programming but you can deploy your applications to windows market place or Apple app-store etc. This is now possible with Phone-gap third party tool for developing apps for mobiles.

The Architecture diagram looks as below

Typical Web architecture contains a server and client, where server contains an endpoint to server HTML/CSS and JS. The client side this being rendered as Visible UI and contains some javascript as well that is web technology.

What is different in Single Page Applications?

With single page web applications, you also tend to have an data end points on server and it is going to return JSON\XML to your application, You can use this data on client data access layer and render that data to UI.

We also want to have fast UI navigation, to done that we have Navigation API which allows you to book marking, navigate forth and back without talking to the server.

We can also make available all right hand side in the diagram offline. You can use local storage apis in HTML5 to work with the data offline.

Using the new Single Page Application project template and scaffolder

Create a new ASP.NET MVC application in Visual Studio, You can install MVC4 beta from here.

It will prompt you to select the project template there you can select Single Page Application project template as shown below

It creates a MVC application but the difference is it creates additional javascript libraries to make it easier for you build single page applications. If you want to use scaffolding then you can use a model class named TodoItem which will be created for you in model folder

To build a sample Single Page application using scaffolding, Add a controller to your solution

Choose the Single Page application template in controller dialogue box

Now run the application then you should be able to see the below output

What is different from other scaffolding applications is it follows single page application architecture and when you hit the browser back and forward it would not talk to the server. It also follows the all principles that we discussed on top.


European ASP.NET MVC 4 Hosting - Amsterdam :: Implementing custom XmlMediaTypeFormatter that ignores XML namespaces in ASP.NET MVC 4

clock September 11, 2012 07:31 by author Scott

In this blog post I will show how to implement a custom XmlMediaTypeFormatter that extends the default ASP.NET Web API XmlMediaTypeFormatter in a way that it ignores XML namespaces when parsing xml messages.

By default the ASP.NET Web API
XmlMediaTypeFormatter is not able to parse XML requests that contain any XML namespace declarations. If you would like to support clients, that (for any reason) send messages containing XML namespaces you can use the IgnoreNamespacesXmlMediaTypeFormatter that is defined as follows:

class IgnoreNamespacesXmlMediaTypeFormatter : XmlMediaTypeFormatter

  // See
  private const string NamespaceRemover =
    @"<xsl:stylesheet version='1.0' xmlns:xsl=''>
        <xsl:output method='xml' indent='no'/>
        <xsl:template match='/|comment()|processing-instruction()'>
        <xsl:template match='*'>
          <xsl:element name='{local-name()}'>
            <xsl:apply-templates select='@*|node()'/>
        <xsl:template match='@*'>
          <xsl:attribute name='{local-name()}'>
            <xsl:value-of select='.'/>

  private readonly XslCompiledTransform _xlstTransformer;

  public IgnoreNamespacesXmlMediaTypeFormatter()
    var xslt = XDocument.Parse(NamespaceRemover, LoadOptions.PreserveWhitespace);
    _xlstTransformer = new XslCompiledTransform();
    _xlstTransformer.Load(xslt.CreateReader(), new XsltSettings(), new XmlUrlResolver());

  public override Task<object> ReadFromStreamAsync(Type type, Stream stream, HttpContentHeaders contentHeaders, IFormatterLogger formatterLogger)
      // Read XML
      var xmlDocument = XDocument.Load(new XmlTextReader(stream));

      // Transform XML
      var resultStream = new MemoryStream();
      _xlstTransformer.Transform(xmlDocument.CreateReader(), XmlWriter.Create(resultStream, new XmlWriterSettings() { OmitXmlDeclaration = true }));
      resultStream.Position = 0;

      // Process request with XmlMediaTypeFormatter default functionality
      return base.ReadFromStreamAsync(type, resultStream, contentHeaders, formatterLogger);
    catch (XmlException)
      return base.ReadFromStreamAsync(type, stream, contentHeaders, formatterLogger);

In detail the
IgnoreNamespacesXmlMediaTypeFormatter removes the XML namespace declarations from the XML message and passes the modified XML to the base class to use the default XmlMediaTypeFormatter functionality. Removing the XML namespaces is done with a XSLT transformation (see

To activate the
IgnoreNamespacesXmlMediaTypeFormatter add the following lines in the file Global.asax.cs:

void Application_Start()

  // Remove default XmlFormatter and add (customized) IgnoreNamespacesXmlMediaTypeFormatter


  var ignoreNamespacesXmlMediaTypeFormatter = new IgnoreNamespacesXmlMediaTypeFormatter{ UseXmlSerializer = true };




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