ASP.NET Core–Generate URL using Url.Action

I needed to generate a URL that I could return inside an ASP.NET Controller.

Thanks to the built-in UrlHelper that is something that even I can do. At least that was what I thought…

This is the code I tried:

	var link = Url.Action(
	nameof(ProductController.Get),
	nameof(ProductController),
	new { id = Id });

view raw UrlActionWrong.cs hosted with ❤ by GitHub

Surprisingly this didn’t work.  It turns out that the controller argument needs the controllername without the controller suffix.  So in my example above ProductController should be Product instead.

I changed it to this:

	var controllerName = nameof(ProductController);
	var controller = controllerName.Remove(
	controllerName.LastIndexOf(
	"Controller",
	StringComparison.Ordinal));
	var link = Url.Action(
	nameof(ProductController.Get),
	controller,
	new { id = Id });

view raw UrlAction.cs hosted with ❤ by GitHub

Still refactor friendly but unfortunately a lot less readible.