DotNetKicks.com - Stories tagged with Validation

ASP.NET MVC Validation Refresh: Best Techniques & Frameworks

Thu, 25 Jun 2009 09:30:52 GMT

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 - A Fluent Validation Library for .NET

Tue, 12 May 2009 13:32:50 GMT

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 allow you to easily add your own without having to modify the library itself. The library is released under the MIT License.

Use MetadataType Attribute with ASP.NET MVC xVal Validation Framework

Wed, 04 Mar 2009 17:05:02 GMT

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.

Diving in NHibernate.Validator

Thu, 26 Feb 2009 18:16:02 GMT

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....

Fluent Validation With ASP.NET MVC and Db4o

Tue, 10 Feb 2009 03:16:02 GMT

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.

ASP.NET MVC Validation - The Definitive Guide (in my eyes)

Tue, 10 Feb 2009 06:16:03 GMT

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?!

ASP.NET MVC Validation - The Definitive Guide (in my eyes)

Tue, 10 Feb 2009 06:16:03 GMT

xVal - a validation framework for ASP.NET MVC

Sun, 11 Jan 2009 13:46:03 GMT

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.

How Not To Compromise Security Through ASP.NET Validators

Wed, 24 Sep 2008 02:31:11 GMT

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

The Three Steps of Building an ASP.NET Validator Control

Tue, 23 Sep 2008 19:46:10 GMT

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.

Client Side Validating Bulk Insert With jQuery Validation Plugin

Tue, 09 Sep 2008 13:15:41 GMT

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.

Form validation with ASP.NET MVC preview 5

Fri, 29 Aug 2008 23:31:02 GMT

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.

How to control ASP.NET Validators ClientSide validation from JScript?

Sun, 03 Aug 2008 23:10:03 GMT

Recently I needed to disable some ASP.NET RequiredFieldValidator controls on one page depending on the user input. This is trivial you say. But the problem was that this needed to occur instantly on Client Side based on the state of one CheckBox control and not after a full page PostBack. There is a simple way to do this...

Release of a simple validation framework for ASP.NET

Fri, 04 Jul 2008 04:58:38 GMT

SimpleValidation is a framework that enables you to tag your entities' properties with attributes, and it will generate web validators based on those attributes, and add them to your edit form. No more manual adding of those numerous RequiredValidator!

ASP.NET MVC Action Precondition Filter v2 now part of MVCContrib

Wed, 04 Jun 2008 23:05:10 GMT

An updated version of ASP.NET MVC Precondition Filter that is now part of MVCContrib ...

ASP.NET MVC: UI Validation Framework Update

Mon, 19 May 2008 20:55:03 GMT

I've taken some recommendations regarding the MVC UI Validation framework I originally posted about, which is available within the MvcContrib project. I'm still working on future advancements like attributing your model, but I did make a significant step forward ensuring both client and server side validation is successful. With some simple changes to how you are generating your validators, you can easily achieve this new functionality.

ASP.NET MVC Controller Action Precondition Filter

Thu, 15 May 2008 07:33:03 GMT

Here is code that will allow you to decorate your MVC Actions with attributes that will define your needed "preconditions". I often find the need to check for the existence of a parameter passed to a web page, such as an ID, and also often need to check if the ID is valid as well (e.g.: a valid primary key). These, I consider "preconditions".

MonoRail #4: Validation

Sat, 29 Sep 2007 03:16:02 GMT

Shows how to wire-up validation in MonoRail using the Validator Component/Library.

How To Do Credit Card Validation in VB.NET

Fri, 21 Sep 2007 01:07:11 GMT

This VB.NET code example shows how to build a simple credit card validation class that indicates if a credit card is valid and what type of card it is.

Javascript validation has just become self aware...

Fri, 07 Sep 2007 18:23:04 GMT

LiveValidation is a small open source javascript library built for giving users real-time validation information as they fill out forms. Not only that, but it serves as a sophisticated validation library for any validations you need to make elsewhere, it is not just limited to form fields.

Domain model validation with LightSpeed

Thu, 30 Aug 2007 03:16:02 GMT

Details on how to create rich domain model validation with Mindscape LightSpeed including why validation at the domain model level is advantageous over existing approaches.

Don't Be a Validation Nazi

Mon, 27 Aug 2007 14:31:02 GMT

"Postel wrote that in an RFC that defined TCP, but it applies much more broadly. It's natural that developers, used to the exacting nature of writing code for a compiler, where even the most minor of typos can bring a program screeching to a halt, have a tendency to apply such exactitude on their users."

IsGuid() method (Regular Expression Based Guid Validation)

Tue, 24 Jul 2007 16:46:02 GMT

Here is a function I try to keep handy which tests a string for a Guid and returns True or False.

Custom "All or Nothing" Required Validator web control in C#

Thu, 12 Jul 2007 15:06:10 GMT

C# code for an ASP.NET required validator web control that requires a specified set of controls to be all populated, or all empty, as a group. It inherits from the RequiredFieldValidator ASP.NET class, so it essentially works the same way, it just treats the set of controls you specify as if they were one control (in the sense of requirement).

Credit Card Number Validation VB.Net Function

Tue, 10 Jul 2007 20:28:44 GMT

This VB.Net code checks the validity of a credit card number. Pass a credit card number to the function and it returns true or false based upon the CC number's validity.