Intersoft Community - Crosslight - Create and add child

Create and add child

prog1 — Wed, 18 Mar 2015 14:19:53 GMT

This is working. But you have two change operations and server calls now.

1. This woul increase incoming traffic on the server. Bad if you have to pay for.

2. If you have two relations you would have to keep three repositories. More relations -> more repositories to keep. You would need more memory.

I would expect a more efficent way to get this done. Especially within an enterprise application. The "normal" entitie framework can handle this with just one call.

Create and add child

yudi — Tue, 17 Mar 2015 06:51:41 GMT

Have you tried the following?

this.Item = this.ItemRepository.Create();

// set the ItemId to avoid foreign key constraint violation
Child child = new Child() { ItemId = this.Item.Id };
this.Item.Childs.Add(child);


this.ItemRepository.Insert(this.Item);
this.ChildRepository.Insert(child);

this.ItemRepository.SaveChangesAsync();
this.ChildRepository.SaveChangesAsync();

Hope this helps.

Create and add child

prog1 — Tue, 10 Mar 2015 09:29:27 GMT

Yes, I am using the EditableEntityRepository.

I am getting a foreign key contraint violation. Especially if I add two or more childs.

Should I use another repository? Is there a code sample?

Create and add child

technical@intersoftpt.com — Tue, 27 Jan 2015 17:05:12 GMT

Hello Fabian,

Could you please inform what type of repository that you use? Is it EditableEntityRepository?

Also, could you please inform the error you received in details?

Thanks!

Create and add child

prog1 — Thu, 22 Jan 2015 20:25:32 GMT

I am trying to add an item and some childs with one submit, but this does lead to an error.

What ist the regular way to add childs and child of child? An example would be nice.

this.Item = this.Repository.Create();

this.Repository.Insert(this.Item);

this.Item.Childs.Add(new Child());

this.Repository.SaveChangesAsync();