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{ Tag Archives } asp.net mvc

A Better View API for Grids in ASP.NET MVC

I’m writing a grid-independent interface for displaying data in ASP.NET MVC applications, and I would like your feedback on the API design.
In my last post, I discussed some of the problems with existing grid components for ASP.NET MVC. Actually, there are a couple more design issues which I forgot to mention in that post. I’ll [...]

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One (MVC) Grid to Rule Them All

Imagine you’re starting a new project using ASP.NET MVC. Let’s say it’s a project which frequently requires displaying a list of records, like Google or Stack Overflow or an enterprise database application. Which grid should you use?
The obvious answer is, "I don’t know. I’m just getting started. Does it really matter, right now?" Don’t you [...]

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How to Avoid Cut and Paste Code with ASP.NET MVC 2 Model Validation

In this post, I will demonstrate how to make your own model validation attributes in order to share common validations throughout an ASP.NET MVC application, and which support MVC 2’s client-side validation feature.
Validating a ZIP Code
As an example, consider a model for an address.

public class EditModel
{
public Guid Id { get; set; [...]

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Unit Testing Html Helpers for ASP.NET MVC

Html helpers for ASP.NET MVC are static extension methods, which frequently reference the ViewContext and  HttpContext. Combined, this can make unit testing a bit tricky. Let’s write a new Html helper using a test-first methodology. Let’s start with a prototype function:

        public static MvcHtmlString MyTable(this HtmlHelper helper, MyModel model, IDictionary<string, object> htmlAttributes)
        {
            return MvcHtmlString.Empty;
        }

I’ve added just enough code here to get the prototype to compile. Now let’s write [...]

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How Does Html.EnableClientValidation() Inject JavaScript?

For a project I’m currently working on, I have a need to add some JavaScript at the end of a page in an ASP.NET MVC application. Since this is part of what Html.EnableClientValidation does, I thought that I would check out that source code to see if there was any kind of generalized mechanism for [...]

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Replacing Controller.Session in ASP.NET MVC: Is This Wrong?

Here’s some code I wrote:

public class MyBaseController : Controller
{
// …
public new ISession Session { get; private set; }
// ….
}

ISession is an interface type I wrote which exposes everything I store in the session at runtime. I use constructor injection to assign this to [...]

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Don’t Depend Upon the ASP.NET Membership Tables

One very popular option for implementing user security in ASP.NET is to use Forms Authentication with the SQL Server membership provider. This provider creates several database tables to store user-related information, as well as a number stored procedures.
From time to time, a developer will attempt to add the ASP.NET Membership/Forms Authentication tables to their Entity [...]

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Projecting Onto a Presentation Model with the Entity Framework and ASP.NET MVC

In this post, I will demonstrate how to map entity models to views in an ASP.NET MVC application without worrying about implementation details like eager loading, lazy loading, or having to manually optimize SQL for the task at hand. I will argue that expressing the relationship between an entity model in the presentation model in [...]

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Updating to ASP.NET MVC 2 Preview 2

Last week, I updated our main development branch to ASP.NET MVC 2 preview 2 (from preview 1). In this post, I’ll list some of the features I’ve found, and also issues I encountered and how I resolved them.
New Features
Some of the new features of preview 2 have been discussed elsewhere, so I won’t rehash them. [...]

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How to Customize ASP.NET MVC Authentication

If you are developing a web application which requires authentication or security features not included in the regular ASP.NET membership feature, you might decide to implement these features yourself. But it seems as if the first instinct of many ASP.NET MVC developers is to do this by customizing their Controllers, because they’ve decided that AuthorizeAttribute [...]

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