Where can I find tutorials on how exactly get this to work?
I am trying to have @helper in App_code directory of my MVC3 app, so far when I try to use them in other razor pages, they cannot be found.
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Looks like your question was answered by SLaks - could you pelase mark it as such?Adam Tolley– Adam Tolley2011-08-04 18:51:00 +00:00Commented Aug 4, 2011 at 18:51
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3 Answers
You need to call the helpers as static methods of the page name.
For example, if you have a helper named HelpMe in App_Code/MyHelpers.cshtml, you would write
@MyHelpers.HelpMe(...)
3 Comments
Ken Smith
It might not be the "Areas" that are the problem. I can use the @MyHelper.Help() syntax just fine in a normal ASP.NET MVC project. But I'm trying to get it working in an Orchard module, implemented as a separate project. And in that separate project, which isn't itself a full Web app, the @MyHelper.Help() syntax works in the IDE, but at runtime it says, "Compiler Error Message: CS0103: The name 'MyHelper' does not exist in the current context." It doesn't seem to be picking up the files in the App_Code directory for compiling. Might be worth its own question.
SLaks
Yes; you should ask a separate question.
Miguel Angelo
Hi! I have created an idea in ASP.NET to make this more useful: Support @helper ExtensionMethod(this HtmlHelper html) for views in APP_CODE... I know this is just a little bit of suggar, but it could make a lot for people trying to write html extension methods... Thanks!
Scott Gu just wrote a blog post about this:
Comments
Look at this SO question and associated answer: Razor: Declarative HTML helpers
It does work, though I find that in the end, I usually opt for writing another extension method off of HtmlHelper.
