Using html helpers in Razor web helper

问题:

I am trying to create a Razor web helper something like this :

@helper DisplayForm() {    
    @Html.EditorForModel();    
}

But this gives the error "CS0103: The name 'Html' does not exist in the current context".

Is there any way to reference html helpers within web helpers?

回答1:

You can cast the static Page property from the context to the correct type:

@helper MyHelper() {
    var Html = ((System.Web.Mvc.WebViewPage)WebPageContext.Current.Page).Html;

    Html.RenderPartial("WhatEver");
    @Html.EditorForModel();
}

回答2:

Declarative helpers in Razor are static methods. You could pass the Html helper as argument:

@helper DisplayForm(HtmlHelper html) {
    @html.EditorForModel(); 
}

@DisplayForm(Html)

回答3:

Razor inline WebHelper is generate static method.

So can not access instance member.

@helper DisplayForm(HtmlHelper html){
    @html.DisplayForModel()
}

How about this?