如何知道 ASP.NET 中 controller 索引的调用者路由？

Question

So I have a something like this in my cshmtl:

<div>
    <a href="/cars"></a>
</div>
<div>
    <a href="/bikes"></a>
</div>

So it goes to cars controller and hits the function below:

[HttpGet]
[Route("cars")]
[Route("bikes")]
public ActionResult Index()
{
    //here I want to set up if else depending on if cars got called or bikes
    return View();
}

In the index function, I wanna know through some if else which route got called. Maybe using view bag or something?

Answer 1

The request context should have all the information you need.

[HttpGet]
[Route("cars")]
[Route("bikes")]
public ActionResult Index()
{
    var requestUri = Context.Request.Url.AbsoluteUri;

    return View();
}

Here are the relevant documentation pages:

• https://docs.microsoft.com/en-us/dotnet/api/system.web.httpcontext?view=netframework-4.8
• https://docs.microsoft.com/en-us/dotnet/api/system.web.httprequest?view=netframework-4.8
• https://docs.microsoft.com/en-us/dotnet/api/system.uri?view=netframework-4.8