To delete the data from the table using linq c#

   public bool delete()

        {

            int res = 0;

            var query = dbcontext.taskdetails.Where(s => s.tid == 1).SingleOrDefault();

       

           dbcontext.taskdetails.Remove(query);

           res = dbcontext.SaveChanges();

           if (res > 0)

           {

               return true;

           }

           else

           {

               return false;

           }         

       

        }