public static void AddCustomer(Customer customer)
{
using (context=new NORTHWNDEntities())
{
context.Customers.Add(customer);
context.SaveChanges();
}
}
public static void ModifyCustomer(Expression<Func<Customer, bool>> exp, Customer newData)
{
using (context=new NORTHWNDEntities())
{
var customer = context.Customers.First(exp);
customer = newData;
context.SaveChanges();
}
}