Why aren't ASP.NET MVC tag helpers creating the correct link?

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Why aren't ASP.NET MVC tag helpers creating the correct link?



I have an asp.net core MVC project with scaffolded Identity, and the tag helpers in the _LoginPartial view are acting wonky. In the Razor view, the link looks like this and don't navigate to any page or view.


<a class="nav-link" asp-area="Identity" asp-page="/Account/Manage/Index">Manage Account</a>



but for some reason it's being rendered like this (taken from the dev console in chrome):


href="/?area=Identity&page=%2FAccount%2FManage%2FIndex"



I don't know why this is happening and I can't figure out how to get it to render properly and allow navigation to the correct page.





You should be using asp-controller=".." and asp-action="..."
– Stephen Muecke
2 days ago


asp-controller=".."


asp-action="..."





asp-page="/Account/Manage/Index" write like this=> asp-page="~/Account/Manage/Index"
– Tazbir Bhuiyan
2 days ago





@TazbirBhuiyan that throws an InvalidOperationException
– db2
2 days ago





default routing controller template: "{controller=Home}/{action=Index}/{id}/{closeOnSubmit?}" How is your controller routing template?
– Tazbir Bhuiyan
2 days ago





I had to delete my answer. This is a mess, including the docs and scouring the github issues. I found this hiding, it may be of some help: docs.microsoft.com/en-us/aspnet/core/security/authentication/…
– Adam Vincent
yesterday




2 Answers
2



I actually found out the issue. In the IdentityHostingStartup class in the Configure method of the Identity area, I had changed services.AddDefaultIdentity<IdentityUser> to services.AddIdentity(IdentityUser, IdentityRole> It doesn't make sense to me why that changes how the URLs are generated, but as soon as I changed it back to services.AddDefaultIdentity<IdentityUser> things returned to normal.


Identity


services.AddDefaultIdentity<IdentityUser>


services.AddIdentity(IdentityUser, IdentityRole>


services.AddDefaultIdentity<IdentityUser>



You can try following


<a asp-area="Account"
asp-controller="Manage"
asp-action="Index">About Blog</a>



It will create following html


<a href="/Account/Manage/Index">About Blog</a>



If you have custom Route mapping like below


[Route("/Speaker/Evaluations", Name = "speakerevals")]
public IActionResult Evaluations() => View();



Then try


<a asp-route="speakerevals">Speaker Evaluations</a>



It will create html like below


<a href="/Speaker/Evaluations">Speaker Evaluations</a>



For more information click here





You absolutely can mix <asp-area=".."> and <asp-page="..">, especially since that's how it's wired up in the template generated from the dotnet new mvc --auth Individual command
– db2
yesterday


<asp-area="..">


<asp-page="..">


dotnet new mvc --auth Individual






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