My entities are these:
public class Customer
{
public Customer()
{
Invoices = new List<Invoice>();
Payments = new List<Payment>();
}
public int ID { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
public IList<Payment> Payments { get; set; }
}
public class Payment
{
public int ID { get; set; }
public int CustomerID { get; set; }
public decimal CreditPrice { get; set; }
public decimal DebitPrice { get; set; }
public DateTime PaymentDate { get; set; }
[ForeignKey("CustomerID")]
public Customer Customer { get; set; }
}
and this is my context:
public class AccountingContext : DbContext, IDisposable
{
public DbSet<Customer> Customers { get; set; }
public DbSet<Payment> Payments { get; set; }
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
modelBuilder.Conventions.Remove<PluralizingTableNameConvention>();
modelBuilder.Entity<Payment>()
.HasRequired(s => s.Customer)
.WillCascadeOnDelete();
base.OnModelCreating(modelBuilder);
}
}
i get this error in WillCascadeOnDelete():
Error 1 'System.Data.Entity.ModelConfiguration.Configuration.RequiredNavigationPropertyConfiguration' does not contain a definition for 'WillCascadeOnDelete' and no extension method 'WillCascadeOnDelete' accepting a first argument of type 'System.Data.Entity.ModelConfiguration.Configuration.RequiredNavigationPropertyConfiguration' could be found (are you missing a using directive or an assembly reference?) D:WorkC# ProjectsVisual Studio 2010WindowsWPFNew folderAccounting Without EF Code FirstAccounting - CopyDAL.EF.CodeFirstEntitiesContextAccountingContext.cs 22 22 DAL.EF.CodeFirst
i want to delete payments of the customer cascading (Just if customer getting deleted). how can i achieve this in EF code first?
also i want to use cascade update.
please help me in these issues.
thanx.
See Question&Answers more detail:
os 与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…