UIGridWebAPIController

 public class CustomerController : ApiController
    {
        //Creating dbcontext class for NorthwindDatabase
        NorthwindEntities dbContext = new NorthwindEntities();

        [HttpGet]
        public IHttpActionResult GetCustomer()
        {
            //Here we will fetch the value from Customer Table
            return Json(dbContext.Customers.Take(10).ToList());
        }
    }