How to invoke a View Component from controller

Question

Is it possible to invoke a View Component from controller and render it to a string? I am really looking for some code example for this. Any help will be much appreciated.

Answer 1

Code from dotnetstep's answer updated for MVC 6.0.0-beta4 (VS2015 RC):

public class HomeController : Controller
    {
        Microsoft.AspNet.Mvc.ViewComponents.DefaultViewComponentHelper helper = null;

        public HomeController(IViewComponentDescriptorCollectionProvider descriptorProvider, IViewComponentSelector selector, IViewComponentInvokerFactory invokerFactory)
        {
            helper = new DefaultViewComponentHelper(descriptorProvider, selector, invokerFactory);
        }
        public IActionResult Index()
        {                  
            ViewContext context = new ViewContext(ActionContext, null, ViewData, null, null);
            helper.Contextualize(context);
            string st1 = helper.Invoke("My", null).ToString();
            return View();
        }
}