The class is used in MVCnamespace Storage.Models
{
    public class Topic : TableServiceEntity
    {
        [DisplayName("Partition Key")]
        public override string PartitionKey { get; set; }
        [DisplayName("Row Key")]
        public override string RowKey { get; set; }
        [DisplayName("Description")]
        public string Description { get; set; }
        public DateTime Created { get; set; }
        public DateTime Modified { get; set; }
        public String CreatedBy { get; set; }
        public string ModifiedBy { get; set; }
    }
}

public ActionResult Create(MyCreateViewModel viewModel)
{
    if (ModelState.IsValid)
    {
        viewModel.Entity.Created = DateTime.UtcNow;
        _myService.Insert(viewModel.Entity);
        _myService.SaveChanges();
        return this.RedirectToAction(x => x.Index());
    } else {
        PopulateViewModel(viewModel);
        return View(viewModel);
    }
}

public ActionResult Edit(MyEditViewModel viewModel)
{
    if (ModelState.IsValid)
    {
        viewModel.Entity.LastEditDate= DateTime.UtcNow;
        _myService.AttachAndUpdate(viewModel.Entity);
        _myService.SaveChanges();
        return this.RedirectToAction(x => x.Index());
    } else {
        PopulateViewModel(viewModel);
        return View(viewModel);
    }
}

public class Topic
{
    public Topic()
    {
        this.Created = DateTime.Now;
        this.CreatedBy = UserName;
    }
    [DisplayName("Partition Key")]
    public override string PartitionKey { get; set; }
    [DisplayName("Row Key")]
    public override string RowKey { get; set; }
    [DisplayName("Description")]
    public string Description { get; set; }
    public DateTime Created { get; set; }
    public DateTime Modified { get; set; }
    public String CreatedBy { get; set; }
    public string ModifiedBy { get; set; }
}