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Add namespaces for Razor pages

, 18 Sep 2011 CPOL
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How to add namespaces for Razor pages

There are two ways to add namespaces:

  1. Put @using namespace at the top of the page.
  2. Put all the namespaces in Views\Web.config.

For example, if you want to use FunctionName(parameters) in your Razor view from the SiteHelper\BasicHelper class, you can pick any one from the above two ways:


Add namespace at the top of the page:

@using myMvc3.SiteHelper


This is so that you can get @Html.FunctionName(parameters) to work without having to put @using at the top of all pages. In your Views\Web.config file, you should add the following:

  <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, 
                        Version=, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
  <pages pageBaseType="System.Web.Mvc.WebViewPage">
      <add namespace="System.Web.Mvc" />
      <add namespace="System.Web.Mvc.Ajax" />
      <add namespace="System.Web.Mvc.Html" />
      <add namespace="System.Web.Routing" />
      <add namespace="myMvc3.SiteHelper"/>


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


About the Author

Monjurul Habib
Software Developer (Senior)
Bangladesh Bangladesh
A life-long-learner, maker and soft music fan. Likes building things to solve problems. Lives in Dhaka with wife and wonderful, smart kid and works as a Senior Software Engineer in applications architecture team.
He has years of successful records serving mid and large scale .NET applications. Have a wide range of experience working in domestic and international client environment. Expertise in different areas of software development life cycles and Software Architecture.
I am always looking for new information and value your feedback (especially where I got something wrong!).
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Generalokye Pinmembersonusharmaji18-Jan-12 4:00 

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