Nop2.0 Error! The requested URL returned 404 - Not Found

I have adding New controller ,model and pages like List.cshtml ,Edit.cshtml and Create.cshtml

i am getting the data on grid but i am sorting in telrik grid control  . .but when i am click on grid then is gives alert
"Error! The requested URL returned 404 - Not Found"

i have added   method for gridcommand also

[HttpPost, GridAction(EnableCustomBinding = true)]
        public ActionResult List(GridCommand command)
        {
///Code for that
}

what is i m  missing in my code. . . .


please reply asap