# IT:AD:ASP.NET:MVC:Views:Forms:Validation:Conditional #



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Types Needed:

* If Other Field is !Null
* If Other Field is Rendered
* If other Field is Requred
* 

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* Library to extend  [this library](http://blogs.msdn.com/b/simonince/archive/2011/09/29/mvc-validationtookit-alpha-release-conditional-validation-with-mvc-3.aspx).
* Or [this one](http://foolproof.codeplex.com/releases/view/87805#ReviewsAnchor)
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http://blogs.msdn.com/b/simonince/archive/2010/06/04/conditional-validation-in-mvc.aspx


http://www.beletsky.net/2012/01/using-aspnet-mvc-validation-mechanism.html


http://weblogs.asp.net/scottgu/archive/2008/10/16/asp-net-mvc-beta-released.aspx#five

Read again:

http://stackoverflow.com/questions/957840/how-to-whitelist-blacklist-child-object-fields-in-the-modelbinder-updatemodel-me

Disabling Validation:

http://msdn.microsoft.com/en-us/library/hh882339.aspx








* [http://www.codeproject.com/Articles/234096/Multiple-Custom-DataAnnotations-on-Same-Field-With](http://www.codeproject.com/Articles/234096/Multiple-Custom-DataAnnotations-on-Same-Field-With)
*[http://blogs.msdn.com/b/simonince/archive/2011/09/29/mvc-validationtookit-alpha-release-conditional-validation-with-mvc-3.aspx](http://blogs.msdn.com/b/simonince/archive/2011/09/29/mvc-validationtookit-alpha-release-conditional-validation-with-mvc-3.aspx)

An interesting project is: [http://foolproof.codeplex.com/](http://foolproof.codeplex.com/)