RazorEngine - How do I use my own HTML helper?

Question

I have the following in a RazorEngine template:

@using WAND.Helpers
@model Tour.Entities.Accommodation

<p>
    You can view your WAND accommodation home page by @Html.HomepageActionLink("Accommodation","clicking here",@Model.AccommodationId)
</p>

The HomePageActionLink is a helper I wrote that looks, in part, like this:

    public static MvcHtmlString HomepageActionLink(this HtmlHelper helper, string serviceProviderType, string linkText, int idValue )
    {
        ...

        return new MvcHtmlString(link);
    }

The problem is that when I run this, I get an error saying:

More details about the error: - error: (64, 60) The name 'Html' does not exist in the current context

Is there a way I can get this to work?

Have you added a `using` statement in the view to the assembly your helper is in (or added the assembly in the `web.config` file)? — , Nov 30 '15 at 23:31
@DavidG - The line where I'm calling Html.HomepageActionLink — Randy Minder, Nov 30 '15 at 23:32
Have you tried the fully qualifiied type name => System.Web.Mvc.Html.HomepageActionLink ? — CodeNotFound, Nov 30 '15 at 23:36
@CodeNotFound - How exactly would I code that so that line is not interpreted as straight HTML text? — Randy Minder, Nov 30 '15 at 23:38
This code looks fine to me. I think you missed to post some other information in the question which might help us to help you — Shyju, Nov 30 '15 at 23:48
Are you using MVC6? If so, just change HtmlHelper to IHtmlHelper. — Cleiton, Dec 01 '15 at 00:08
Do the normal HTMLHelpers work, such as `@Html.ActionLink(...)`? — DavidG, Dec 01 '15 at 00:37

score 1 · Accepted Answer · answered Jan 08 '17 at 10:28

You can override BaseTemplateType with class which has Html implementation. Like

var config = new TemplateServiceConfiguration();
        // MvcHtmlStringFactory code from 
        // http://stackoverflow.com/questions/19431365/razorengine-html-helpers-work-but-escape-the-html
        config.EncodedStringFactory = new MvcHtmlStringFactory();

        // HtmlTemplateBase code from
        // http://stackoverflow.com/questions/8561164/razorengine-issues-with-html
        config.BaseTemplateType = typeof(HtmlTemplateBase<>);
        var service = RazorEngineService.Create(config);

        var Colmodel ="@Html.BeginForm(\"UploadDocument\", \"Detail\", new{a=1,b=2})";

        string res = service.RunCompile(Colmodel, Colmodel,
            model.GetType(), model);

RazorEngine - How do I use my own HTML helper?

1 Answers1