Difficulty in DinnerRepository class

flyinhawaiian · March 10th, 2011, 10:37 AM

This is the right way

Code:

public void Add(Dinner dinner)
{
	entities.Dinners.AddObject(dinner);
}

But you say you have compiler error? Sounds like you don't have right version of .Net Framework (need .NET Framework 4)

Download here

jlaracena · March 11th, 2011, 03:30 AM

thankÂ´s you for your help flyinhawaiian, the .NET framework 4 I have it installed,automatically installed by Visual Studio 2010 Ultimate.

The problem is that when I try this, does not recognize the method .AddObject()

entities.Dinners.AddObject(dinner)

if I delete .Dinners., and I write entities.AddObject(dinner); it works.

where I can define the method .AddObject() for the Class Dinners????
itÂ´s automatically defined? where I can check?

ThankÂ´s you.

flyinhawaiian · March 11th, 2011, 10:53 AM

Should not have to define it yourself. AddObject() is part of ObjectSet class. Your entity might be differently named. I recall an error in the book (Dinners versus Dinner). Review the steps to create the entity and pay careful attention to the name you use.

Or, look in NerdDinner.Designer.cs This is what my Dinners looks like. Don't touch anything in this file, unless you really know what you're doing. It is meant to be changed only by the designer.

Code:

        public ObjectSet<Dinner> Dinners
        {
            get
            {
                if ((_Dinners == null))
                {
                    _Dinners = base.CreateObjectSet<Dinner>("Dinners");
                }
                return _Dinners;
            }
        }

        private ObjectSet<Dinner> _Dinners;

obama549 · April 13th, 2011, 03:27 AM

Quote:

Originally Posted by Ole F

kermit1965, I guess you will get a problem with your code - especially if there are two (or more) RSVP's to a dinner!

Why? Because in you "foreach" loop you first delete the first rsvp. Then you (within your loop) delete the dinner. I guess your application will crash when going to the next RSVP (or maybe the other RSVP's will just stay in the database undeleted...)

Sorry I was not precise. The code was only creating three methods. I did not intend that they be run sequentially