Porting childAction from MVC5 to asp.net core's ViewComponent

I am in the process of migrating my existing MVC5 application to asp. net core hosted in asphostportal. In the app, I use grids in many Views, so I had implemented the Grid functionality as a child Action:
In the Views/Shared folder, I had my Grid. cshtml
In the Controllers folder, I had my GridController. cs

To show a grid, in the View I added:

1	@Html. RenderAction("Grid", "Grid", new {gridId=X, dataId=Y, param=Z, etc })

The grid had async loading and paging, so in the GridController, I had:

public ActionResult Grid(int gridId, int dataId, etc)
{
   <blah, blah>;
   return PartialView(myModel);    
}

and

public ActionResult Read(int dataId, int PageNo)
{
    <blah, blah>;
     return Json(data, JsonRequestBehavior. AllowGet);
}

So, moving to asp. net core, goodbye child Actions, hello ViewComponents. I have successfully created the ViewComponent class and the view and I am able to show the initial state of the Grid in the hosting View page. Still, I need to find a way to call the Read method and load data into my Grid. . .

Alas! As I found out after a lot of googling:

A view component never directly handles an HTTP request so you can’t call directly to a view component from the client side. You will need to wrap the view component with a controller if your application requires this behaviour. "

So, should I create a GridController. cs as well? Is this the best way to go, or there exists some other way / best practice?

Thanks in advance whoever takes the time to respond.