SilverlightShow: Working with collections in WCF RIA Services (part 1) Comments

Re: Working with collections in WCF RIA Services (part 1)

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RE: Working with collections in WCF RIA Services (part 1)

almostEric — Wed, 11 May 2011 00:54:55 GMT

I enjoy WCF RIA Services for the most part, but it is pretty stunning that many-to-many relationship support is so lacking.

RE: Working with collections in WCF RIA Services (part 1)

KevinDockx — Tue, 10 May 2011 15:12:42 GMT

Hello weitzhandler, you can find the EntityList in the WCF RIA Services Toolkit, in Microsoft.Windows.Data.DomainServices. The assembly is included in the example solution (if you do not want to download the complete toolkit).

RE: Working with collections in WCF RIA Services (part 1)

weitzhandler — Tue, 10 May 2011 14:41:32 GMT

I haven't found the EntityList but rather found the EntityCollection.

What's the differences, have I missed something?

RE: Working with collections in WCF RIA Services (part 1)

Teun — Tue, 10 May 2011 14:12:09 GMT

Hi Kevin,

Thank you for your quick reply. I tried adding a new item to the DomainContext, instead of the EntityList the DCV used as source, but that did not work either. I will try other ways.

After using the DataForm I still like the possibilities of it, but not the control itself.

Greetings,
Teun

Ps. sorry about the repost of the question.

RE: Working with collections in WCF RIA Services (part 1)

Teun — Tue, 10 May 2011 13:59:42 GMT

Hi Kevin,

have you tried using the DomainCollectionView source for the DataForm? Because I get exceptions if the DCV is sorted when adding a new item.

Do you maybe know a work around?

Greetings,
Teun

RE: Working with collections in WCF RIA Services (part 1)

KevinDockx — Tue, 10 May 2011 13:56:03 GMT

Hello Teun,

I don't work with the DataForm (not too fond of that control...), but one thing you might want to look into: the DCV is in essence a view which works on servers-side data, which implies adding data should be done on the server (eg: to the context & submit changes) after which the DCV can be refreshed/reloaded. Adding/removing data on the client on the DCV itself will typically result in unexpected behaviour, as it's not supposed to work like that. IMO, the DCV should even block an action like that, but at the moment it's still allowed (yet unusable).

Hope this helps!

RE: Working with collections in WCF RIA Services (part 1)

Teun — Tue, 10 May 2011 13:31:49 GMT

Hi Kevin,

have you tried using the DomainCollectionView source for the DataForm? Because I get exceptions if the DCV is sorted when adding a new item.

Do you maybe know a work around?

Greetings,
Teun