如何在 C# 代码中创建 Razor Page Urls？

Question

Microsoft introduced Razor Pages in ASP.NET Core 2.0 as an alternative to MVC. We are looking to migrate our legacy ASP.NET MVC 5 app to NET Core and Microsoft recommends using Razor Pages instead of MVC moving forward.

We are currently using T4MVC framework to help generate strongly-typed ActionResult objects to construct complex navigation menus. The nav menu is created using a viewmodel which is a linked list of ActionResult routes where each route can be something quite complex such as:

https://example.com/Client/1/Documents/2/Edit?p1=123&p2=ABC&h2=456

In T4MVC I can add this controller action to my viewmodel with:

menu.Add(MVC.Client.Documents.Edit(cliendId, documentId, requestParameters));

The ASP documentation doesn't go into detail on how to create routes in code, other than a simple: RedirectToPageResult("./Index") so how does one build more complex page routes without the benefit of T4MVC or resorting to magic strings?

Answer 1

You can easily hard code the URL if you know the name of the path of the razor page relative to the Pages folder(this is by default).For example:

 public IActionResult OnPostGoogle(string provider)
        {

            var redirectUrl = "https://localhost:5001/UserPages/ExternalLoginCallback";
            var properties = signInManager.ConfigureExternalAuthenticationProperties(provider, redirectUrl);
            return new ChallengeResult(provider, properties);
        }

This is a method that configure Google login and redirects user to ExternalLoginCallback page. Here I have ExternalLoginCallback.cshtml.cs that is in Pages/UserPages. So you can append a relative path to your page from PagesFolder to your website address or in my case localhost and you will get full url to your page.That is why they used in example RedirectToPageResult("./Index") because Index.cshtml.cs is directly in Pages folder.