在MVC视图中创建ActionLink

Question

I'm fairly new to MVC so, please excuse my possibly incorrect use of terminology.

In the RouteConfig.cs file of my MVC app there is this routes.MapRoute :-

  routes.MapRoute(
     name: "Default",
     url: "{controller}/{action}/{id}",
     defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
   );

The key line being :-

url: "{controller}/{action}/{id}"

so, I followed the example of creating ActionLinks, that were created in my default app template, and cobbled together this line :-

<p>@Html.ActionLink("portfolio details", "Detail", "Portfolio", new { portfolioId = portfolio.PortfolioId } , new { @class = "btn btn-default" })</p>

However, this gives me the URL :-

http://localhost:xxxxx/Portfolio/Detail?portfolioId=174198

If, I don't want the ID to be in a QueryString parameter, how do I create the link to match the pattern that is expected in the routes.MapRoute so that I get a URL link such as :- ?

http://localhost:xxxxx/Portfolio/Detail/174198

Answer 1

你可以用这种方式

<p>@Html.ActionLink("portfolio details", string.Format("Detail/{0}", portfolio.PortfolioId ), "Portfolio", null, null)</p>

Answer 2

Assuming your controller action has the parameter id then you could do:

<p>@Html.ActionLink("portfolio details", "Detail", "Portfolio", new { id = portfolio.PortfolioId } , new { @class = "btn btn-default" })</p>

This should give you:

http://localhost:xxxxx/Portfolio/Detail/174198

The this would pass 174198 to the controller action as the id parameter.