对Url.Content扩展的智能感知

Question

When using MVC Razor you often write @Url.Content("~/images/someimage.png") and you get intellisense on that string - it somehow knows that it's a path.

I created an extension method for Url.Content() but it doesn't get intellisense when typing the path parameter.

Does anyone know if there is some kind of attribute you can put on parameters, or is there a better way (an override?) I can cut in and change the default Url.Content's behaviour?

    public static string ContentExtended(this UrlHelper urlHelper, string contentPath)
    {
        string result = urlHelper.Content(contentPath);

        // do stuff here to remove application folder name on godaddy hosting

        return result;
    }

EDIT: I use resharper, and just realised this might be a resharper-specific feature that regular VS users don't actually have. I disabled Resharper intellisense, and just had the regular VS intellisense on, and the path specific auto-complete didn't work. So this is a resharper feature, not a programming problem

Answer 1

Matt, it's really ReSharper's feature. You need to mark contentPath parameter with PathReferenceAttribute attribute. You can copy it's implementation to your project from ReSharper → Options → Code Inspection → Code Annotations.

Answer 2

You'd need to provide XML documentation:

/// <summary>
/// Lorem ipsum...
/// </summary>
/// <param name="urlHelper">The helper to provide content to</param>
/// <param name="contentPath">The path to the content</param>

This isn't just for extension methods - it's how you provide documentation (picked up by IntelliSense) for everything.

If you're talking about something more than that, in terms of IntelliSense suggesting possible values, that may be an attribute...

Answer 3

尝试使用此http://mvccontrib.codeplex.com/wikipage?title=T4MVC具有静态内容智能功能。