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• Does the DataAnnotations.DisplayAttribute.Order property not work with ASP.NET MVC 2?

  - by Zack Peterson

  I set values for the Order property of the Display attribute in my model metadata. [MetadataType(typeof(OccasionMetadata))] public partial class Occasion { private class OccasionMetadata { [ScaffoldColumn(false)] public object Id { get; set; } [Required] [DisplayName("Title")] [Display(Order = 0)] public object Designation { get; set; } [Required] [DataType(DataType.MultilineText)] [Display(Order = 3)] public object Summary { get; set; } [Required] [DataType(DataType.DateTime)] [Display(Order = 1)] public object Start { get; set; } [Required] [DataType(DataType.DateTime)] [Display(Order = 2)] public object Finish { get; set; } } } I present my models in strongly-typed views using the DisplayForModel and EditorForModel methods. <%= Html.DisplayForModel() %> and <%= Html.EditorForModel() %> But, ASP.NET MVC 2 displays the fields out of order! What might I have wrong?

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• Asp.Net MVC Tutorial Unit Tests

  - by Nicholas

  I am working through Steve Sanderson's book Pro ASP.NET MVC Framework and I having some issues with two unit tests which produce errors. In the example below it tests the CheckOut ViewResult: [AcceptVerbs(HttpVerbs.Post)] public ViewResult CheckOut(Cart cart, FormCollection form) { // Empty carts can't be checked out if (cart.Lines.Count == 0) { ModelState.AddModelError("Cart", "Sorry, your cart is empty!"); return View(); } // Invoke model binding manually if (TryUpdateModel(cart.ShippingDetails, form.ToValueProvider())) { orderSubmitter.SubmitOrder(cart); cart.Clear(); return View("Completed"); } else // Something was invalid return View(); } with the following unit test [Test] public void Submitting_Empty_Shipping_Details_Displays_Default_View_With_Error() { // Arrange CartController controller = new CartController(null, null); Cart cart = new Cart(); cart.AddItem(new Product(), 1); // Act var result = controller.CheckOut(cart, new FormCollection { { "Name", "" } }); // Assert Assert.IsEmpty(result.ViewName); Assert.IsFalse(result.ViewData.ModelState.IsValid); } I have resolved any issues surrounding 'TryUpdateModel' by upgrading to ASP.NET MVC 2 (Release Candidate 2) and the website runs as expected. The associated error messages are: *Tests.CartControllerTests.Submitting_Empty_Shipping_Details_Displays_Default_View_With_Error: System.ArgumentNullException : Value cannot be null. Parameter name: controllerContext* and the more detailed at System.Web.Mvc.ModelValidator..ctor(ModelMetadata metadata, ControllerContext controllerContext) at System.Web.Mvc.DefaultModelBinder.OnModelUpdated(ControllerContext controllerContext, ModelBindingContext bindingContext) at System.Web.Mvc.DefaultModelBinder.BindComplexModel(ControllerContext controllerContext, ModelBindingContext bindingContext) at System.Web.Mvc.Controller.TryUpdateModel[TModel](TModel model, String prefix, String[] includeProperties, String[] excludeProperties, IValueProvider valueProvider) at System.Web.Mvc.Controller.TryUpdateModel[TModel](TModel model, IValueProvider valueProvider) at WebUI.Controllers.CartController.CheckOut(Cart cart, FormCollection form) Has anyone run into a similar issue or indeed got the test to pass?

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• How do build a composite or template control in ASP.Net MVC, or the equivelant?

  - by Jason Jackson

  In our current ASP.Net Webforms application we have several composite/template server controls that only exist for a common look and feel. For example, we have a panel control that has a title, a place for buttons related to the contents of the panel, and of course the contents. How is this best accomplished in MVC? RenderPartial doesn't get done what I need here. Should I still be using the same controls, but just on a view page? These controls don't really do anything on postback, they are only there for a common look and feel.

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• How to get the Focus on one of Buttons of JQuery Dialog on ASP.NET MVC page?

  - by Rita

  Hi I have an ASP.NET MVC page(Registration). On loading the page, i am calling Jquery Dialog with Agree and Disagree buttons on that Dialog. 1). How to set the focus to Agree button by default? 2). How to disable the X (Close) Mark that is on Top right corner? (So that i don't want the user to close that dialog simply). Code: $("#dialog-confirm").dialog({ closeOnEscape: false, autoOpen: <%= ViewData["autoOpen"] %>, height: 400, width: 550, modal: true, buttons: { 'Disagree': function() { location.href = "/"; }, 'Agree': function() { $(this).dialog('close'); $(this).focus(); } }, beforeclose: function(event, ui) { var i = event.target.id; var j = 0; } }); Appreciate your responses. Thanks

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• Integrating ASP.NET MVC 2 with classic ASP

  - by David Lively

  I'm in the process of moving a large classic ASP application to ASP.NET MVC 2. Questions: My question is about project organization. I would prefer to not mix the MVC code with the ASP code in the same VS project. I'd like to have an MVC WAP with areas that match the parts of the website that I'm migrating. For instance, the old site has a folder /products/default.asp..... /products/productName/default.asp etc. In the MVC WAP, I'd like to have an area called "products", which I could then, either through a rewrite, routing, or preferably through some IIS configuration, point the "products" folder on the ASP site to. In this way, I could gradually move root folders from the ASP site to the MVC application. However, if I create the MVC WAP in a virtual folder, then my routes wind up looking like http://localhost/virtualFolder/products instead of http://localhost/products Any suggestions on how to conquer this? I know that, during deployment, I could deploy the MVC WAP into the root of the ASP site, but this doesn't help with debugging.

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• ASP.Net MVC vs ASP.Net for Complex workflows

  - by Grant Sutcliffe

  I have just become involved in migrating a series of complex workflows with InfoPath UIs to Web-based UIs. I am new to ASP.Net MVC but have started to evaluate it as the technology versus classic ASP.Net for the job. As is typical of most workflows, in each state there are a number of business rules that determine (a) who can view what content; (2) who can edit what content; (3) what the user action options might be (Edit; Reject; Approve), etc. In essence, there is a lot of logic that needs to be applied to each request before presenting the appropriate view. Being more experienced in ASP.Net, I know that presenting the form(s) as required can be easily achieved through code behind pages (enable / disable / hide fields). I have not seen how this can be achieved with ASP.Net MVC (but am realising that new thinking is required of me when working with MVC - ‘Give only the content on a particular View + limited user action options’). Therefore, if using ASP.Net MVC, it looks like I would need to create a lot of views. Much of the content in each view would be the same. Only field enabled status or buttons would differ in most instances for these views in each state. For example: Step01Initiate (‘Has Save’ button); Step01OriginatorView (has ‘Edit’ Button) ; Step01OriginatorEdit (has ‘Save’ button); Step01Review (has ‘Accept’ / ‘Reject’ buttons); Step01ReviewReject (for reviewer notes; has ‘Save’ / ‘Cancel’ buttons). With workflows of up to six states, this would result in a lot of views. I can see the advantages of choosing ASP.MVC (1) ‘thin’ Views in terms of content; and (2) with logic consolidation in Controllers and different Models. Am I thinking along the right lines in terms of applying the MVC – ‘plenty of views’; or is there a better way to achieve my goal (using ASP.Net MVC or classic ASP.Net)?

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• How to programatically record the start and end of an MVC FileResult for logging of incomplete downl

  - by Richard

  Hi, I have been investigating how My ASP.NET MVC application can log unsuccessful / incomplete downloads. I have a controller handling the file requests which currently returns a FileResult. What I need to record is the IPAddress, filename and when the download started, then the same data and when it completed. I have looked at intercepting the request start and end with an HttpModule and also IIS7 failed request tracing but am not sure which route would be best and have this feeling that maybe I am missing an obvious answer to the problem. Does anyone have any suggestions or know of any alternatives as this seems like something many people would want to know from their web server? Thanks for your help

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• Best way of implementing DropDownList in ASP.NET MVC 2?

  - by Kelsey

  I am trying to understand the best way of implementing a DropDownList in ASP.NET MVC 2 using the DropDownListFor helper. This is a multi-part question. First, what is the best way to pass the list data to the view? Pass the list in your model with a SelectList property that contains the data Pass the list in via ViewData How do I get a blank value in the DropDownList? Should I build it into the SelectList when I am creating it or is there some other means to tell the helper to auto create an empty value? Lastly, if for some reason there is a server side error and I need to redisplay the screen with the DropDownList, do I need to fetch the list values again to pass into the view model? This data is not maintained between posts (at least not when I pass it via my view model) so I was going to just fetch it again (it's cached). Am I going about this correctly?

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• Will the URL /nosuchpage get routed via my ASP.NET MVC application?

  - by Gary McGill

  [I'm trying to figure out the reason why I'm having another problem, and this question is part of the puzzle.] I have an MVC 2 website that has routing set up so that URLs such as /Customer/23/Order/47 get handled by various controllers. I do not have a rule that would match, for example, /nosuchpage and in my Cassini environment a request for that URL will trigger my Application_Error code, which lets me log the error and show a friendly response. However, when I deployed this website on IIS7 using integrated mode, my Application_Error is not triggered, and IIS shows its own 404 message. No matter what I've tried, I can't get Application_Error to fire. Now I'm thinking: is the reason it doesn't fire because the request is not getting routed via my application? Either because I didn't explicitly set up a catch-all route, or because the file-extension fools it into thinking it should use the "static file handler" (whatever that is)? Should I expect my Application_Error to be invoked?

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• Recommended approach to port to ASP.NET MVC

  - by tshao

  I think many of us used to face the same question, what's the best practices to port existing web forms App to MVC. The situation for me is that we'll support both web forms and MVC at the same time. It means, we create new features in MVC, while maintaining legacy pages in web forms, and they're all in a same project. The point is: we want to keep the DRY (do not repeat yourself) principle and reduce duplicate code as much as possible. The ASPX page is not a problem as we only create new features in MVC, but there're still some shared components we want to re-use the both new / legacy pages: Master page UserControl The question here is: Is that possible to create a common master page / usercontrol that could be used in both web forms and MVC? I know that ViewMasterPage inherits from MasterPage and ViewUserControl inherits from UserControl, so it's maybe OK to let both web forms and MVC ASPX page refer to the MVC version. I did some testing and found sometimes it generates errors during the rendering of usercontrols. Any idea / experience you can share with me? Very appreciate to it.

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• How to create a reusable Asp.Net Mvc application?

  - by Amitabh

  We have multiple Asp.Net WebSites each running on IIS. Site1 : http://www.Site1.com/ Site2 : http://www.Site2.com/ We have to implement Shopping Cart functionality for each of the above WebSites. For each web site the corresponding shopping cart should work on the following Url. Shopping Cart for Site1 : http://www.Site1.com/shop/cart Shopping Cart for Site2 : http://www.Site2.com/shop/cart We want to develop the Shopping Cart application using Asp.Net MVC 2.0. But it should be reusable in both the above sites.

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• How to binding to bit datatype in SQL to Booleans/CheckBoxes in ASP.NET MVC 2 with DataAnnotations

  - by nvtthang

  I've got problem with binding data type boolean to checkbox in MVC 2 data annotations Here's my code sample: label> Is Hot </label> <%=Html.CheckBoxFor(model => model.isHot, new {@class="input" })%> It always raise this error message below at (model=model.isHot). Cannot convert lambda expression to delegate type 'System.Func<Framework.Models.customer,bool>' because some of the return types in the block are not implicitly convertible to the delegate return type Cannot implicitly convert type 'bool?' to 'bool'. An explicit conversion exists (are you missing a cast?) Please suggest me how can I solve this problem? Thanks in advance.

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• Cannot connect to SQL Server from ASP.NET MVC app

  - by Dan Fergus

  I have an ASP.NET MVC app that has on a hosted server for over a year, connecting to SQL Server. I've had to change hosting services, the new one supports MVC 1.0. I've also moved a non MVC ASP app to the same hosting service. Now, MY MVC based app retturnes this error when I try to validate a user login. A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) Now, the non-MVC app can access the exact same database and authenticate users just fine. The MVC app, when run from my dev box connects fine. It also run/connects/authenticates without problem when I install and run the site from an internal SQL 2008 server running IIS 7. I, along with the hosting support techs, am at a loss how the exact same connect string works every where except on the hosted server, and only when run from inside an ASP.NET MVC web app. Any ideas would be greatly appreciated.

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• How to do some preformance testing in asp.net mvc?

  - by chobo2

  Hi I am using asp.net mvc 2.0 and I want to test how long it takes to do some of my code. In one senario I do this load xml file up. validate xml file and deserailze. validate all rows in the xml file with more advanced validation that cannot be done in the schema validation. then I do a bulk insert. I want to know how long steps 1 to 3 take and how long step 4 takes. I tried to do like DateTime.UtcNow in areas and subtract them but it told me it took like 3 seconds but I know that is not right as steps 1 to 4 take 2mins to do.

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• ASP.net MVC How to run multiple instances of the same app at the same time in different subdomains?

  - by basilmir

  ASP.net MVC How to run multiple instances of the same app at the same time in different subdomains? I have a dozen or so subdomains. sub1.website.com sub2.website.com and the folder structure like this \website\sub1 \website\sub2 If i need to run the same app for all of the subdomains, what would be the best appoach? Host is in the root \website\ and have it figure out where to look based on the "user"? (i imagine i need to implement de logic in the code) OR Just copy the app in each of the subdomains, and have the app "not knowing" that it is actually an instance? (this would mean that when i update the app, i have to copy it everywhere) What other approaches are there to this kind of issue? Each app will use a different database name so that will need to we coded in somekind of external file.

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• WCF publish/subscribe service, and ASP.NET MVC client

  - by d3j4vu

  I managed to develop a custom WCF service, using the publish / subscribe model, and hosted inside a managed windows service. Everything's working. I developed an interface as the service contract implementing a method definition marked as a non-one way operation contract (OperationContract(IsOneWay = false)]. This, to make possible returns an instance of a custom class derived from System.Web.Mvc.ActionResult. In the MVC app, event fires ok. It wraps inside an action method, (just the one defined in the interface), but, and this is my current problem, i believe that something relative to the execution context of the windows service (and the hosted wcf counterpart) blocks the execution of the action method in the MVC app. This is what i have until now (some pieces ripped off just to be more clear): /// Method definition for the contract's service. Maps to a MVC ActionMethod. [OperationContract(IsOneWay = false)] ActionResult Imagen(string data, CustomActionResult result); The class to hold an ActionResult derived class instance: public class ServiceEventArgsMvc : ServiceEventArgs { /// <summary> /// /// </summary> public CustomActionResult Result { get; set; } } And the code in the MVC client app: /// <summary> /// Just a simple class to hold an abstract ActionResult derived class instance. /// </summary> public ActionResult Image(string data, CustomActionResult result) { ViewData["data"] = data; return View(); } Ok. ActionMethod sucessfully executes...but when it's done (and usually expected obtain a reditection to a View named Image, like the action method), the WCF service throws a Timeout exception, making clear that he's still waiting for a response from the MVC client. The response never arrives, so the MVC app never finish his work (redirect to the "Image" view as expected). Any ideas?. Guess i'm missing something very simple, but i don't know what it could be. This is drivin' me nuts.

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• Looking for a wsdl-based scaffolding framework.

  - by daniel.balla

  I am looking for a wsdl scaffolding framework, or even better if it was a POCO scaffolding framework. I need something like Dynamic Data, but running on wsdl metadata instead of db. I am currently using office infopath which generates decent forms based on wsdl, but I would like to have it in my app, and generated at runtime. Any ideas would be appreciated. Thanks

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• April 30th Links: ASP.NET, ASP.NET MVC, Visual Studio 2010

  - by ScottGu

  Here is the latest in my link-listing series. [In addition to blogging, I am also now using Twitter for quick updates and to share links. Follow me at: twitter.com/scottgu] ASP.NET Data Web Control Enhancements in ASP.NET 4.0: Scott Mitchell has a good article that summarizes some of the nice improvements coming to the ASP.NET 4 data controls. Refreshing an ASP.NET AJAX UpdatePanel with JavaScript: Scott Mitchell has another nice article in his series on using ASP.NET AJAX that demonstrates how to programmatically trigger an UpdatePanel refresh using JavaScript on the client. ASP.NET MVC ASP.NET MVC 2: Basics and Introduction: Scott Hanselman delivers an awesome introductory talk on ASP.NET MVC.  Great for people looking to understand and learn ASP.NET MVC. ASP.NET MVC 2: Ninja Black Belt Tips: Another great talk by Scott Hanselman about how to make the most of several features of ASP.NET MVC 2. ASP.NET MVC 2 Html.Editor/Display Templates: A great blog post detailing the new Html.EditorFor() and Html.DisplayFor() helpers within ASP.NET MVC 2. MVCContrib Grid: Jeremy Skinner’s video presentation about the new Html.Grid() helper component within the (most awesome) MvcContrib project for ASP.NET MVC. Code Snippets for ASP.NET MVC 2 in VS 2010: Raj Kaimal documents some of the new code snippets for ASP.NET MVC 2 that are now built-into Visual Studio 2010.  Read this article to learn how to do common scenarios with fewer keystrokes. Turn on Compile-time View Checking for ASP.NET MVC Projects in TFS 2010 Build: Jim Lamb has a nice post that describes how to enable compile-time view checking as part of automated builds done with a TFS Build Server.  This will ensure any errors in your view templates raise build-errors (allowing you to catch them at build-time instead of runtime). Visual Studio 2010 VS 2010 Keyboard Shortcut Posters for VB, C#, F# and C++: Keyboard shortcut posters that you can download and then printout. Ideal to provide a quick reference on your desk for common keystroke actions inside VS 2010. My Favorite New Features in VS 2010: Scott Mitchell has a nice article that summarizes some of his favorite new features in VS 2010.  Check out my VS 2010 and .NET 4 blog series for more details on some of them. 6 Cool VS 2010 Quick Tips and Features: Anoop has a nice blog post describing 6 cool features of VS 2010 that you can take advantage of. SharePoint Development with VS 2010: Beth Massi links to a bunch of nice “How do I?” videos that that demonstrate how to use the SharePoint development support built-into VS 2010. How to Pin a Project to the Recent Projects List in VS 2010: A useful tip/trick that demonstrates how to “pin” a project to always show up on the “Recent Projects” list within Visual Studio 2010. Using the WPF Tree Visualizer in VS 2010: Zain blogs about the new WPF Tree Visualizer supported by the VS 2010 debugger.  This makes it easier to visualize WPF control hierarchies within the debugger. TFS 2010 Power Tools Released: Brian Harry blogs about the cool new TFS 2010 extensions released with this week’s TFS 2010 Power Tools release. What is New with T4 in VS 2010: T4 is the name of Visual Studio’s template-based code generation technology.  Lots of scenarios within VS 2010 now use T4 for code generation customization. Two examples are ASP.NET MVC Views and EF4 Model Generation.  This post describes some of the many T4 infrastructure improvements in VS 2010. Hope this helps, Scott P.S. If you haven’t already, check out this month’s "Find a Hoster” page on the www.asp.net website to learn about great (and very inexpensive) ASP.NET hosting offers.

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• Optional Parameters and Named Arguments in C# 4 (and a cool scenario w/ ASP.NET MVC 2)

  - by ScottGu

  [In addition to blogging, I am also now using Twitter for quick updates and to share links. Follow me at: twitter.com/scottgu] This is the seventeenth in a series of blog posts I’m doing on the upcoming VS 2010 and .NET 4 release. Today’s post covers two new language feature being added to C# 4.0 – optional parameters and named arguments – as well as a cool way you can take advantage of optional parameters (both in VB and C#) with ASP.NET MVC 2. Optional Parameters in C# 4.0 C# 4.0 now supports using optional parameters with methods, constructors, and indexers (note: VB has supported optional parameters for awhile). Parameters are optional when a default value is specified as part of a declaration.  For example, the method below takes two parameters – a “category” string parameter, and a “pageIndex” integer parameter.  The “pageIndex” parameter has a default value of 0, and as such is an optional parameter: When calling the above method we can explicitly pass two parameters to it: Or we can omit passing the second optional parameter – in which case the default value of 0 will be passed:   Note that VS 2010’s Intellisense indicates when a parameter is optional, as well as what its default value is when statement completion is displayed: Named Arguments and Optional Parameters in C# 4.0 C# 4.0 also now supports the concept of “named arguments”.  This allows you to explicitly name an argument you are passing to a method – instead of just identifying it by argument position.  For example, I could write the code below to explicitly identify the second argument passed to the GetProductsByCategory method by name (making its usage a little more explicit): Named arguments come in very useful when a method supports multiple optional parameters, and you want to specify which arguments you are passing.  For example, below we have a method DoSomething that takes two optional parameters: We could use named arguments to call the above method in any of the below ways: Because both parameters are optional, in cases where only one (or zero) parameters is specified then the default value for any non-specified arguments is passed. ASP.NET MVC 2 and Optional Parameters One nice usage scenario where we can now take advantage of the optional parameter support of VB and C# is with ASP.NET MVC 2’s input binding support to Action methods on Controller classes. For example, consider a scenario where we want to map URLs like “Products/Browse/Beverages” or “Products/Browse/Deserts” to a controller action method.  We could do this by writing a URL routing rule that maps the URLs to a method like so: We could then optionally use a “page” querystring value to indicate whether or not the results displayed by the Browse method should be paged – and if so which page of the results should be displayed.  For example: /Products/Browse/Beverages?page=2. With ASP.NET MVC 1 you would typically handle this scenario by adding a “page” parameter to the action method and make it a nullable int (which means it will be null if the “page” querystring value is not present).  You could then write code like below to convert the nullable int to an int – and assign it a default value if it was not present in the querystring: With ASP.NET MVC 2 you can now take advantage of the optional parameter support in VB and C# to express this behavior more concisely and clearly.  Simply declare the action method parameter as an optional parameter with a default value: C# VB If the “page” value is present in the querystring (e.g. /Products/Browse/Beverages?page=22) then it will be passed to the action method as an integer.  If the “page” value is not in the querystring (e.g. /Products/Browse/Beverages) then the default value of 0 will be passed to the action method.  This makes the code a little more concise and readable. Summary There are a bunch of great new language features coming to both C# and VB with VS 2010.  The above two features (optional parameters and named parameters) are but two of them.  I’ll blog about more in the weeks and months ahead. If you are looking for a good book that summarizes all the language features in C# (including C# 4.0), as well provides a nice summary of the core .NET class libraries, you might also want to check out the newly released C# 4.0 in a Nutshell book from O’Reilly: It does a very nice job of packing a lot of content in an easy to search and find samples format. Hope this helps, Scott

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• Can you/should you develop components for ASP.NET MVC?

  - by Vilx-

  Following from the previous question I've started to wonder - is it possible to implement "Components" in ASP.NET MVC (latest version)? And should you? Let's clarify what I mean with a "component". With that I mean a "control" (aka "widget"), similar to those that ASP.NET webforms is built upon. A gridview might be a good example. In webforms I can place on my form a datasource component (one line of code), a gridview component (another line of code) and bind them together (specify an attribute on the gridview). In the codebehind file I fill the datasource with data (a few lines of DB-querying code), and I'm all set. At this point the gridview is a fully functional standalone component. I can open the form, and I'll see all the data. I can sort it by clicking on the column headers; it is split into several pages; I can drag the column headers around and rearrange columns; I can turn on "grouping" mode; etc. And I don't need to write another line of code for any of it. The gridview, as a component, already has all the code tucked away in its classes and assemblies. I just place it on the form, initialize it, and it Just Works. At some times (like sorting or navigation to a different page) it will also perform ajax callbacks to the server, but those too will be handled internally, with my code having no knowledge at all about it. And then there are also events that I can attach if I want to get notified when something happens. In MVC I cannot see a way of doing this cleanly. Sure, there are the partial views, but those only handle half of the problem - they render the initial HTML. Some more can be achieved with client-side Javascript (like column re-arranging), but when the grid needs to do an ajax callback (say, to fetch the next page of data), my code will have to get involved and process that request. At best I guess I can provide some helper methods to process it, but I'll have to write the code that calls them, and also provide a controller method with signature matching the arguments of that callback. I guess that I could make some hacks with global events or special routes or something, but that just seems... hackish. Unelegant. Perhaps this is not the MVC way? Although I've completed one project in it, I'm still far from being an MVC expert. But then what is? In the intranet application that we're building there are dozens upon dozens of such grids. Naturally I want them all to have a unified look & behavior, and I don't want to repeat the same code all over the place. So what's the "MVC" approach to this problem?

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• How to configure ASP.NET MVC 3 on IIS 6 (Windows 2003 R2)

  - by Nedcode

  I am getting 403 Directory Listing Denied for the root and 404 for an action that I know should exist. Background: I have build and deployed an ASP.NET MVC 2 applcation a long time ago. Later I upgraded it to MVC 3 and it is still working with not configuration changes. Setting it up on a windows 2003 R2 (Standard) initialy was a pain, but after a couple of days(yes, days) struggling it started working. Now I have to do the same with the same application on a different server (2003 R2 Standard again) on a different network. .Net 4 is installed and allowed ASP.NET MVC 3 is also installed By default IIS is set to use .net 4 I verify aspnet_isapi.dll used in application extension are from version 4.0.30319 .NET asemblies folder. I also added the wildcard mapping to aspnet_isapi.dll and unchecked verify file exists. Under Directory Security in Authentication Methods I have disabled anonymos access and enabled Integrated Windows authentication(same as the one on the server that it works) I have copied the same web.config with the <authentication mode="Windows" /> <authorization> <deny users="?" /> </authorization> I have set Read & Execute, List Folder Contents, and Read for the Networkservice account(under which the app pool is working). Also I have set the same for Network account, IIS_WPG, ASPNET and IUSR_MAchineName. I do not have an EnableExte??nsionlessUrls but even if I create it and set it to true or false it does not help. I also tried http://haacked.com/archive/2010/12/22/asp-net-mvc-3-extensionless-urls-on-iis-6.aspx and it did not help. But I kept getting 403 Directory Listing Denied for the root and 404 for an action that I know should exist. Web Platform installer was then used to re-install and possibly update .net, asp.net etc. I then noticed IIS was reset to default. So I added the wildcard mapping again. No, luck still 403. I exported configuration files from the working server setup and created new default app pool and new default website using those configurations. Still I get 403 Directory Listing Denied for the / and 404 for any action I try.

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• How to create a MVC 2 DisplayTemplate for a field whose display format is dependent on another field

  - by Glenn

  If I have a property whose display format is dependent on the value of another property in the view model how do I create a display template for it? The combination of field1's display being dependent on field2's value will be used throughout the app and I would like to encapsulate this in a MVC 2 display template. To be more specific, I've already create a display template (Social.ascx) for custom data type Social that masks a social security number for display. For instance, XXX-XX-1234. [DataType("Social")] public string SocialSecurityNumber { get; set; } All employees also have an employeeID. Certain companies use the employee's social security number as either the whole employee id or as part of it. I need to also mask the employeeID if it contains the social. I'd like to create another display template (EmpID.ascx) to perform this task. [DataType("EmpID")] public string EmployeeID { get; set; } The problem is that I don't know how to get both properties in the "EmpID" template to be able to perform the comparison. Thanks for the help.

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• In Asp.Net MVC 2 is there a better way to return 401 status codes without getting an auth redirect

  - by Greg Roberts

  I have a portion of my site that has a lightweight xml/json REST API. Most of my site is behind forms auth but only some of my API actions require authentication. I have a custom AuthorizeAttribute for my API that I use to check for certain permissions and when it fails it results in a 401. All is good, except since I'm using forms auth, Asp.net conveniently converts that into a 302 redirect to my login page. I've seen some previous questions that seem a bit hackish to either return a 403 instead or to put some logic in the global.asax protected void Application_EndRequest() that will essentially convert 302 to 401 where it meets whatever criteria. Previous Question Previous Question 2 What I'm doing now is sort of like one of the questions, but instead of checking the Application_EndRequest() for a 302 I make my authorize attribute return 666 which indicates to me that I need to set this to a 401. Here is my code: protected void Application_EndRequest() { if (Context.Response.StatusCode == MyAuthAttribute.AUTHORIZATION_FAILED_STATUS) { //check for 666 - status code of hidden 401 Context.Response.StatusCode = 401; } } Even though this works, my question is there something in Asp.net MVC 2 that would prevent me from having to do this? Or, in general is there a better way? I would think this would come up a lot for anyone doing REST api's or just people that do ajax requests in their controllers. The last thing you want is to do a request and get the content of a login page instead of json.

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• How to use NInject (or other DI / IoC container) with the model binder in ASP.NET MVC 2 ?

  - by Andrei Rinea

  Let's say I have an User entity and I would want to set it's CreationTime property in the constructor to DateTime.Now. But being a unit test adopter I don't want to access DateTime.Now directly but use an ITimeProvider : public class User { public User(ITimeProvider timeProvider) { // ... this.CreationTime = timeProvider.Now; } // ..... } public interface ITimeProvider { public DateTime Now { get; } } public class TimeProvider : ITimeProvider { public DateTime Now { get { return DateTime.Now; } } } I am using NInject 2 in my ASP.NET MVC 2.0 application. I have a UserController and two Create methods (one for GET and one for POST). The one for GET is straight forward but the one for POST is not so straight and not so forward :P because I need to mess with the model binder to tell it to get a reference of an implementation of ITimeProvider in order to be able to construct an user instance. public class UserController : Controller { [HttpGet] public ViewResult Create() { return View(); } [HttpPost] public ActionResult Create(User user) { // ... } } I would also like to be able to keep all the features of the default model binder. Any chance to solve this simple/elegant/etc? :D

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• How to secure Add child record functionality in MVC on Parent's view?

  - by RSolberg

  I'm trying to avoid some potential security issues as I expose some a new set of functionality into the real world. This is basically functionality that will allow for a new comment to be added via a partialview on the "Parent" page. My comment needs to know a couple of things, first what record is the comment for and secondly who is making the comment. I really don't like using a hidden field to store the ID for the Parent record in the add comment form as that can be easily changed with some DOM mods. How should I handle this? PARENT <% Html.RenderPartial("AddComment", Model.Comments); %> CHILD <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<CommentsViewModel>" %> <% using (Html.BeginForm("AddComment", "Requests")) {%> <fieldset> <legend>New Comment</legend> <%= Html.HiddenFor(p => p.RequestID) %> <%= Html.TextBoxFor(p => p.Text) %> &nbsp; <input type="submit" value="Add" /> </fieldset> <% } %> CONTROLLER [AcceptVerbs(HttpVerbs.Post)] public void AddComment(CommentsViewModel commentsModel) { var user = GetCurrentUser(); commentsModel.CreatedByID = user.UserID; RequestsService.AddComment(commentsModel); }

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