Track the current active page, or how to get controller and action names in a view

Question

I am new in ASP.NET Core. I have a navigation menu and I would like to track the active item. My idea is to use the action and controller names as navigation keys:

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Answer 1

Use

var controller = ViewContext.RouteData.Values["Controller"];
var action = ViewContext.RouteData.Values["Action"];

PS: Use ToLower() if required

ViewContext.RouteData.Values["Action"].ToString().ToLower();

Also you can activate your menu by style block