How to Create Base Controller in Asp.net Core MVC?

This might help you. https://visualstudiomagazine.com/articles/2017/09/14/mvc-controller-default.aspx?m=1

its creating baseviewmodel that is not going to work for me

i need such controller to control my own content as i want including layout.cshtml

also need the syntax for creating basecontroller in asp.net core mvc

Correct me if I understand wrong https://stackoverflow.com/questions/13225315/pass-data-to-layout-that-are-common-to-all-pages