I don't really like to see namespaces in my Views in ASP.NET MVC for several reasons, but one of the more important reasons is that if you change the namespace of the classes you use in your views you then have to go to every view and update the namespaces appropriately. Nothing more painful than forgetting to update those namespaces and/or having to change them on the views.
There is a handy-dandy area in the Web.config where you can add namespaces for your views once that will be referenced in all your views. Add them there and if you ever need to change namespaces you only have to make the change once in the Web.config.
Before with the ugly namespace in the ASP.NET MVC View:
After with the namespace in the Web.config and removed from the ASP.NET MVC View:
It truly does help with the maintainability of your web applications, ASP.NET Webforms or ASP.NET MVC :)
David Hayden
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