如何解析〜来自TagHelper的根链接

在ASP.NET 5 MVC6 RC1中-我有一个ViewComponent，旨在代表我的传统“屏幕左侧”主菜单。

我正在编写我的第一个TagHelper来代表每个菜单项链接。

我被困在试图创建超链接的部分。

我该如何解决 ~/dashboard/summary?

如果我在此页面上显示菜单，则链接显示为/dashboard/~/dashboard/summary。

@Url.Content("...")显示@Url.Content("...")即未作为剃刀处理。标记帮助器输出pure。

理想情况下，我希望该解决方案与.NET Core兼容，因为我最终的目标是.NET Core可部署解决方案。

见下文：

namespace Website
{

    /// 

    /// 
    /// 
    /// to render
    /// 
    ///  
    ///    
  Change my password
    /// 
    /// 
    /// 
    /// 
    [HtmlTargetElement(Attributes = "area, controller, action")]
    public class MainMenuLinkTagHelper : TagHelper
    {
        [HtmlAttributeName("area")]
        public string Area { get; set; }

        [HtmlAttributeName("controller")]
        public string Controller { get; set; }

        [HtmlAttributeName("action")]
        public string Action { get; set; }

        public UrlHelper urlHelper { get; set; }

        public override void Process(TagHelperContext context, TagHelperOutput output)
        {
            output.TagName = "a";    // Works    
            // Stuck here - I want ~/ to resolve to the base root.  
            // At the moment the address is here is localhost:XXXXX/dashboard/~/dashboard/summary

            // Would prefer to use a method which can be used with .net core and not System.Web

            output.Attributes.Add("href", "~/dashboard/summary");
            output.Content.SetHtmlContent("Click me");

        }        
        /// 
            
    }
}

谢谢！担。

默认情况下，ASP Core 2.0似乎未包含IActionContextAccessor在中IServiceCollection，因此您需要在启动时进行注册才能使接受的解决方案起作用：

services.AddSingleton();

using Microsoft.AspNetCore.Mvc.Rendering;
using Microsoft.AspNetCore.Mvc.Routing;
using Microsoft.AspNetCore.Mvc.ViewFeatures;
using Microsoft.AspNetCore.Razor.TagHelpers;

[HtmlTargetElement("my-tag")]
public class MyTagHelper : TagHelper {

    private readonly IUrlHelperFactory urlHelperFactory;

    [ViewContext]
    [HtmlAttributeNotBound]
    public ViewContext ViewContext { get; set; }

    public MyTagHelper (IUrlHelperFactory urlHelperFactory) {
        this.urlHelperFactory = urlHelperFactory;
    }

    public override void Process(TagHelperContext context, TagHelperOutput output) {
        var urlHelper = urlHelperFactory.GetUrlHelper(ViewContext);
    }
}