A simple script that allows you to apply a css class to all validators in a web project.

Another look at how to use xVal like validation goodness with traditional ASP.NET WebForms.

I finally found some time last night to see what it would take to get xVal working in an ASP.NET Web Application Project. After a few hours I had something. I only needed to add two classes on top of xVal, DataAnnotationsValidationRunner and ModelValidator.

I just wanted to do a “refresher” post regarding ASP.NET MVC validation as many things have changed over the last couple of months and there is a lot of information out there. I wanted to aggregate my known validation options and recommend them in one tabular list.

TNValidate is a fluent validation library for .Net. It allows you to write validation logic in a form that is readable both by programmers and non-programmers, but still entirely in your .Net language. TNValidate has plenty of built-in validation rules, but also provides an extension mechanism to ...

In this article I discuss encorporating the MetadataType attribute to allow usage with LINQ2SQL classes. Most of us would have heard of Steve’s brilliant new swanky ASP.NET MVC Validation Framework coined xVal which allows you to use any validation component you wish.

Surfing in the NET, to find some NHibernate.Validator (NHV) example, I saw that there are various things not so clear about how NHV is working. In this post I’ll try to give you a more deep explication....

After trying a ton of techniques, I bring you the tried & tested definitive guide to ASP.NET MVC validation utilising both CLIENT (jQuery validator plugin) and SERVER validation ready to go with strong object model validation AND compatible with LINQ 2 SQL. What more could one want?!

In this post, Tuna tries to implement validation that uses Fluent Validation as its validation framework. The approach he has taken is to apply validation rules at persistence level.

xVal lets you link up your choice of server-side validation mechanism with your choice of client-side validation library. It guides you to fit them both into ASP.NET MVC conventions, so everything plays nicely with model binding and errors registered in ModelState.

A guide to closing some security holes that might be left open when using or building ASP.NET Validator controls.

A clear walkthrough on how to build an ASP.NET validator control in three steps with an example of how to apply this to build a credit card number validator.

I have been working on a proof of concept for a way to insert a bunch of contact data for a record. One of the requirements that has been pretty challenging is the client side validation since a lot of info isn't known until run time.

In earlier ASP.NET MVC previews, form validation was something that should be implemented "by hand". Since the new ASP.NET MVC preview 5, form validation has become more handy. Let me show you how you can add validation in such a ridiculously easy manner.