MVC4 Entity Framework Controller Database Issue - entity-framework

Question

I am trying to perform an insert or update from my controller but I get an error message stating that 'ICN.CourierClient does not contain a definition' of my various properties like 'Address' - when in fact it does, and my other similar calls to other database models work fine with the same code. Did I miss a reference or some configuration somewhere, I have it defined in the same way as my other models in my dbset statements:
public DbSet<Courier> Couriers { get; set; }
public DbSet<Driver> Drivers { get; set; }
public DbSet<Job> Jobs { get; set; }
public DbSet<CourierClient> CourierClients { get; set; }
IQueryable<Courier> Datasource.Couriers { get { return Couriers; } }
IQueryable<Driver> Datasource.Drivers { get { return Drivers; } }
IQueryable<Job> Datasource.Jobs { get { return Jobs; } }
IQueryable<CourierClient> Datasource.CourierClients { get { return CourierClients; } }
IEnumerable<CourierClient> client = null;
client = from c in db.CourierClients where c.ClientName == job.PickupCompanyName select c;
if (client != null)
{
client.Address = job.PickupAddress1;
client.City = job.PickupCity;
client.State = job.PickupState;
client.Zip = job.PickupZip;
client.Phone = job.PickupPhone;
db.Entry(client).State = EntityState.Modified;
}
else
{
client.ClientName = job.PickupCompanyName;
client.Address = job.PickupAddress1;
client.City = job.PickupCity;
client.State = job.PickupState;
client.Zip = job.PickupZip;
client.Phone = job.PickupPhone;
db.CourierClients.Add(client);
}
db.SaveChanges();
public class CourierClient
{
[Key]
public virtual int ID { get; set; }
public virtual string ClientName { get; set; }
public virtual string ContactName { get; set; }
public virtual string Address { get; set; }
public virtual string City { get; set; }
public virtual string State { get; set; }
public virtual string Zip { get; set; }
public virtual string Phone { get; set; }
public virtual string Fax { get; set; }
public virtual string Email { get; set; }
}

Answer 1

You declared client as IEnumerable<CourierClient>. That is why compiler tells you that it does not have properties, which you expect to find in CourierClient.
CourierClient client = (from c in db.CourierClients where c.ClientName == job.PickupCompanyName select c).SingleOrDefault();
if (client != null)
{
client.Address = job.PickupAddress1;
client.City = job.PickupCity;
client.State = job.PickupState;
client.Zip = job.PickupZip;
client.Phone = job.PickupPhone;
db.Entry(client).State = EntityState.Modified;
}
else
{
client = new CourierClient();
client.ClientName = job.PickupCompanyName;
client.Address = job.PickupAddress1;
client.City = job.PickupCity;
client.State = job.PickupState;
client.Zip = job.PickupZip;
client.Phone = job.PickupPhone;
db.CourierClients.Add(client);
}
db.SaveChanges();
Note the creation of the instance of CourierClient if it was not found.