Help with MVC Dropdownlist generation [Resolved]

Hii,
I have the following code.Can anyone help me with the view code to populate IEnumerable<SelectListItem>GroupsList data into the dropdownlist..where GroupsList is a list of records in a table with id and name as columns.I also need a default ''select value" in dropdown list .


My controller code:

  public ActionResult GetMyGroups()
        {
         var groupslist = _adminSystemServices.GetGroups();
          var model = new GroupsViewModel
          {
            GroupsList = groupslist.Select(x => new SelectListItem
              {
                Text = x.Name,
                Value = x.Id.ToString()
              })
          };
      return View(model);
         }

Model:

 public class GroupsViewModel : HeaderViewModel
    {
      public Guid Id { get; set; }
      public String Name { get; set; }
      public Guid GroupId { get; set; }
      public Guid ClaimId { get; set; }
      public String Description { get; set; }
      public List<ClaimViewModel> AvailableClaimsList { get; set; }
      public IEnumerable<SelectListItem> GroupsList { get; set; }
      public List<ClaimViewModel> GroupClaimsList { get; set; }
      public ClaimViewModel ClaimViewModel { get; set; }
    }

[Resolved]