Epic Blog of Awesome

code.tech.sci.math.art.write

Coding Horror: Understanding Model-View-Controller

This ubiquitous trifecta represents MVC almost perfectly.

Model
The HTML is the "skeleton" of bedrock content. Text that communicates information to the reader.

View
The CSS adds visual style to the content. It is the "skin" that we use to flesh out our skeleton and give it a particular look. We can swap in different skins via CSS without altering the original content in any way. They are relatively, but not completely, independent.

Controller
The browser is responsible for combining and rendering the CSS and HTML into a set of final, manipulatible pixels on the screen. It gathers input from the user and marshals it to any JavaScript code necessary for the page to function. But here, too, we have flexibility: we can plug in a different brower and get comparable results. Some browsers might render it faster, or with more fidelity, or with more bells and whistles.

So if you believe the web has been at all successful — most signs I’ve seen point to yes — then you also have to acknowledge the incredible power of Model-View-Controller.

via Coding Horror: Understanding Model-View-Controller.

Code clarity: Tips on using Virtual Directories in ASP.NET, MVC, HttpSimulator, SiteMap

Tips on using Virtual Directories in ASP.NET, MVC, HttpSimulator, SiteMap
Imagine you develop a web-site. You register IIS site to test it, seems like all is ok. You deploy it to customer, and… oh no! where is my images, styles, scripts? and why site map causes an exception?!
It is common situation when site developed and tested on IIS web-site root, and deployed into Virtual Directory. Here I want to describe some tips to avoid such situations.

via Code clarity: Tips on using Virtual Directories in ASP.NET, MVC, HttpSimulator, SiteMap.

Use ViewData and Implement ViewModel Classes: The Official Microsoft ASP.NET Site

Using a ViewModel Pattern

The ViewData dictionary approach has the benefit of being fairly fast and easy to implement. Some developers don’t like using string-based dictionaries, though, since typos can lead to errors that will not be caught at compile-time. The un-typed ViewData dictionary also requires using the "as" operator or casting when using a strongly-typed language like C# in a view template.

An alternative approach that we could use is one often referred to as the "ViewModel" pattern. When using this pattern we create strongly-typed classes that are optimized for our specific view scenarios, and which expose properties for the dynamic values/content needed by our view templates. Our controller classes can then populate and pass these view-optimized classes to our view template to use. This enables type-safety, compile-time checking, and editor intellisense within view templates.

via Use ViewData and Implement ViewModel Classes: The Official Microsoft ASP.NET Site.

Experience ASP.NET MVC 3 Beta – the Razor View Engine


Razor is designed to be an alternate view engine for ASP.NET MVC. Initially introduced in WebMatrix and now shipped as part of ASP.NET MVC 3 Beta, Razor allows developers to replace the clunky <% %> syntax with a much cleaner coding model mainly around the sign @. Moreover, it provides some excellent features for Master Page scenarios, while at the same time you won’t lose access to any features you are already familiar with, such as HTML helper methods.

via Experience ASP.NET MVC 3 Beta – the Razor View Engine.

ASP.NET MVC View Model Patterns

Since MVC has been released I have observed much confusion about how best to construct view models. Sometimes this confusion is not without good reason since there does not seem to be a ton of information out there on best practice recommendations.  Additionally, there is not a “one size fits all” solution that acts as the silver bullet. In this post, I’ll describe a few of the main patterns that have emerged and the pros/cons of each. It is important to note that many of these patterns have emerged from people solving real-world issues.

via ASP.NET MVC View Model Patterns.

Microsoft Ajax Content Delivery Network – ASP.NET Ajax Library

The Microsoft Ajax Content Delivery Network (CDN) hosts popular third party JavaScript libraries such as jQuery and enables you to easily add them to your Web applications. For example, you can start using jQuery which is hosted on this CDN simply by adding a <script> tag to your page that points to ajax.aspnetcdn.com.

By taking advantage of the CDN, you can significantly improve the performance of your Ajax applications. The contents of the CDN are cached on servers located around the world. In addition, the CDN enables browsers to reuse cached third party JavaScript files for web sites that are located in different domains.

via Microsoft Ajax Content Delivery Network – ASP.NET Ajax Library.