Out of the box, ASP.Net MVC provides a web application Data Annotations validation. Data Annotations uses a attribute based approach to mark models with rules. For simple validation Data Annotations can be enough. Data Annotations can be extended, but can be complex to do so and can feel at times ve...

This article looks at how you go at validating composite models with knockout.js.

I am doing a short series of blog posts on using FluentValidation with ASP.NET MVC. In this first instalment I cover the basics of installing via NuGet and replacing the standard data annotations validation.

Knockout validation is a plugin that allows you to extend observables with validation. If you're familiar with jQuery validation, you will notice that most provided validation rules are very similar. One of the validation rules available out-of-the-box is pattern validation. By default the error mes...

At least as long as programming has existed, people have tried to be tricky. I'm sure we have all tried to architecture something tricky only to have to revert our project and sheepishly go with a simpler solution.

Hi Guys, Well after the last few months of building a commercial WPF app (and learning a lot along the way!) I’ve been generally delighted with the experience. A few things I feel could be a lot more polished, or a lot more thought out, but thems the breaks and we can only hope to see some improvem...

A great post that goes into details about how to validate an email address against the actual definition provided in RFC 2821.

How to use ASP.NET validators on controls without ViewState.

One of the most exciting new features in MVC 2 is "Enhanced Model Validation support across both server and client"; this new enhanced support allows for client side validation to be dynamically generated into a view from DataAnnotations attributes on models. One minor problem: Out of t...

This article attempts to explain how validation in Silverlight works (beyond validation code in property setters). It draws some conclusions on what's possible and the ramifications. And it peeks at the changes with SL4.

A look into how to add custom validation to MVC 2 to allow for validating a hidden field in a form.

Describes how to add validation rules in MVC 2.0 from code. Yeah, data annotation and rules in model is cool. But I have found no info about how to add client validation rules from code, it can be useful in many cases. So, I go to Reflector and try to find some way to do this.

Article described general validation techniques that could be used in ASP.NET MVC. It is based on real project experience and explains the peculiarities and drawback of some approaches to help developers and architects to choose the best one for them.

Article fully compares different validation techniques which could be used in ASP.NET MVC trying to help in choosing the best one for some projects. It's a first article from the series about validation written by AST.NET MVC specialists from Qulix Systems.