2 controller routes and a named action

Question

2 controller routes and a named action

Beau Barker 1

This question is similar, but removing the name is not a solution to my problem.
https://learn.microsoft.com/answers/questions/347031/exception-is-raised-when-2-controller-routes-and-a.html

My controller has two routes defined, one with a controller-wide parameter and one without. The controller is for report subscriptions. If the parameter is present, then all actions are filtered to operate only on the provided report. If the parameter is missing, then all action are filtered to all reports.

The name is needed to construct valid URLs with the URL helper since the Action method doesn't seem capable. Without names, I have to resort to "knowing" how the URL is constructed at runtime which makes maintenance more difficult if something changes in the future.

Is there a way to construct unique names with multiple routes on a controller?

[Route("reports/subscriptions", Name = "all_report_subs")]  
[Route("reports/{reportName}/subscriptions", Name = "specific_report_subs")]  
public class ReportSubscriptionsController : Controller  
{  
  [HttpGet(Name = "_index")]  
  public IActionResult Index(string? reportName)  
  {  
    // do something  
  }  
}

Anonymous

Hi @Beau Barker ,

You can try to add two action methods, and add the route attribute on the action method, instead of the controller:

   public class ReportSubscriptionsController : Controller  
    {  
        [HttpGet]  
        [Route("reports/{reportName}/subscriptions", Name = "specific_report_subs")]  
        public IActionResult ReportSpecific(string? reportName)  
        {  
            // do something  
            //return specific records.  
            return View("Index");  
        }  
        [HttpGet]  
        [Route("reports/subscriptions", Name = "all_report_subs")]  
        public IActionResult ReportAll()  
        {  
            // do something  
            //return all records.  
            return View("Index");  
        }  
    }

Then the request URL is https://localhost:{Port number}/reports/subscriptions or https://localhost:{Port number}/reports/{report name}/subscriptions.

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Anonymous

2022-12-06T03:10:26.343+00:00

Hi @Beau Barker ,

You can try to add two action methods, and add the route attribute on the action method, instead of the controller:

public class ReportSubscriptionsController : Controller { [HttpGet] [Route("reports/{reportName}/subscriptions", Name = "specific_report_subs")] public IActionResult ReportSpecific(string? reportName) { // do something //return specific records. return View("Index"); } [HttpGet] [Route("reports/subscriptions", Name = "all_report_subs")] public IActionResult ReportAll() { // do something //return all records. return View("Index"); } }

Then the request URL is https://localhost:{Port number}/reports/subscriptions or https://localhost:{Port number}/reports/{report name}/subscriptions.

Answer 1

Bruce (SqlWork.com) 75,386 Moderator

you should use UrlHelper.RouteUrl to generate the url. it supports using the route name:

var url = Url.RouteUrl("specific_report_subs", new RouteValueDictionary   
{   
   { "reportName", "MyReport" }  
});

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2 controller routes and a named action

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