[Solved] Trying to adapt the current Telerik sample (AJAX client binding) with the way I do updates in my generic Repository

[Max]

I am trying to apply the method below on a Telerik Grid (AJAX calls). Here is how I used to update a row in a database:

REPOSITORY:
===========
    public class GenericRepository<TEntity> where TEntity : class
    {
        internal UdsContext context;
        internal DbSet<TEntity> dbSet;

        public GenericRepository(UdsContext context)
        {
            this.context = context;
            this.dbSet = context.Set<TEntity>();
        }

        public virtual void Update(TEntity entityToUpdate)
        {
            dbSet.Attach(entityToUpdate);
            context.Entry(entityToUpdate).State = EntityState.Modified;
        }
...

    public class CourseRepository : GenericRepository<Course>
    {
        public CourseRepository(SchoolContext context) : base(context)
        {
        }
...

CONTROLLER:
===========

        public ActionResult Edit(int id)
        {
            Course course = unitOfWork.CourseRepository.GetByID(id);
            return View(course);
        }

        [HttpPost]
        public ActionResult Edit(Course course)
        {
            try
            {
                if (ModelState.IsValid)
                {
                    unitOfWork.CourseRepository.Update(course);
                    unitOfWork.Save();
                    return RedirectToAction("Index");
                }
            }
            catch (DataException)
            {
                ModelState.AddModelError("", "Unable to save changes.");
            }
            return View(course);
        }

However, on the Telegrid examples they use the following:

        public static EditableProduct One(Func<EditableProduct, bool> predicate)
        {
            return All().Where(predicate).FirstOrDefault();
        }

        public static void Update(EditableProduct product)
        {
            EditableProduct target = One(p => p.ProductID == product.ProductID);
            if (target != null)
            {
                target.ProductName = product.ProductName;
                target.UnitPrice = product.UnitPrice;
                target.UnitsInStock = product.UnitsInStock;
                target.Discontinued = product.Discontinued;
                target.LastSupply = product.LastSupply;
            }
        }

So their action accepts an ID and mine accepts the entity object.
I am trying to find out how I can adapt the current Telerik sample (AJAX client binding) with the way I do updates in my generic Repository.

Sorry for the long post.

Thank you