Deleting a record in a table MVC 4 - asp.net-mvc

Question

Im having some trouble when I try to delete a record from a table. I get the error:
The number of primary key values passed must match number of primary key values defined on the entity.
The table has a composite primary key. They are cabinCrewId and flightId.
Controller:
public ActionResult Delete(string name)
{
using (A1Context db = new A1Context())
{
var id = from person in db.person
from flightcabincrew in db.flightcabincrew
from cabincrew in db.cabincrew
where person.name == name
where person.id == cabincrew.person
where cabincrew.person == flightcabincrew.cabinCrewId
select new { flightcabincrew.cabinCrewId, flightcabincrew.flightId };
FlightCabinCrew fcc = db.flightcabincrew.Find(id);
if (fcc == null)
{
return HttpNotFound();
}
else
{
return View(fcc);
}
}
}
Post:
[HttpPost]
public ActionResult Delete(FlightCabinCrew fcc)
{
using (A1Context db = new A1Context())
{
db.Entry(fcc).State = System.Data.EntityState.Deleted;
db.SaveChanges();
}
return View();
}
and part of the view concerned:
#model IEnumerable<Assignment2.Models.FlightCrewGrid>
#{
WebGrid grid = new WebGrid(Model);
}
<h2>#ViewBag.Title</h2>
#grid.GetHtml(columns: grid.Columns(
grid.Column("PersonName", "Crew Member"),
grid.Column("FlightDay", "Flight Day"),
grid.Column("FromAirport", "From"),
grid.Column("ToAirport", "To"),
grid.Column("Model", "Model"),
grid.Column("startDate", "Start Date"),
grid.Column(header: "Delete", format: (item) => Html.ActionLink("Delete", "Delete", new { id=item.PersonName})))
Thanks in advance for any guidance.

Answer 1

Maybe you didn't declare a primary key for the entity. You do this by marking the primary key column with the [Key] attribute.
[Key]
public int cabinCrewId { get; set; }
[Key]
public int flightId { get; set; }

Answer 2

public ActionResult Demodelete(int id)
{
Employee emptbl = new Employee();
emptbl.EmpId = id;
dbc.Entry(emptbl).State = EntityState.Deleted;
dbc.SaveChanges();
return View();
}