Calling method from razor page

Question

I have a asp.net core mvc project.

In my layout file, I want to display the name of the currently logged in user, such that the username is displayed in the header. For this, I want to be able to call a function in my homecontroller that does this. So, I made a simple function taht looks like this in the home controller:

    public String GetLoggedInuser()
    {
        return "garse garsebro";
    }

And then I have tried every method I have been able to find. The first couple of methods here are just function suggested around the web, that are simply not available to me:

@HtmlHelper.Action("GetLoggedInuser");
@Html.RenderAction("GetLoggedInuser");

To name a few. Then there is this one, which I can find:

 @Html.ActionLink("GetLoggedInuser")

But for this one, my function "GetLoggedInuser" can't be found anywhere.

How do you, in a razor page call a controller function that you can get returned a string from that function and display it?

Answer 1

If you are using Microsoft.AspNet.Identity then below line will do the work post login.

@Html.ActionLink("Hello " + User.Identity.GetUserName() + "!", "Index", "Manage", routeValues: null, htmlAttributes: new { title = "Manage" })