Silverlight TV 18: WCF RIA Services Validation

John, you ask great questions, as if you could read my mind

Nikhil, thank you for great show. Hope to see more of you here. Love to have the code for this show. Need to check a couple of things against the code.

Thanks guys (Gentlemen)

..Ben

Ya, but that code is for the MIX and not this show. He just told me that he may not have the code, since it was on a laptop image and he is not sure he has it. This was a great show. I hope the presenters don't get frustrated with you stopping them, but you break down very important points that the presnters go over quickly. Man, you should have joined MS in 2007 Dr. Sneath picked a good one. I bet Disney is upset

Thanks!

Great episode, answered a lot of questions I had.  But, please, please post the next video soon, validation based on volatile rules from a database is exactly what I want to know!

Great ep, also very interested in the validation based on db/xml rules.

I like RIA Services but i have only one question why XAML designer is not availabe in Vsial Studio 2008 for RIA Services please convey my message to Microsoft beacause i don't want to purchase Visaual studio 2010 now , but i want to develop my future application on RIA services please tell me is there any solution to view XAML designer for RIA services in Visual Studio 2008, because without designer i think its useless to use RIA Service in VS 2008.

Regards

Atif Shahzad

>>Thanks for the head sup. Nikhil just updated his blog post with the code from this episode.

@John;

Except that the link is broken

I just left Nikhil a message on his blog;

thanks for keeping alert attentions!

@Atif;

This issue goes back to several months ago where the RIA team had to move forward with some new features that were introduced in .Net 4 and WCF4.0. Also, VS10 has new capabilities for rendering XAML that is not available in VS2008.

RIA services RC/RTW basically depends on certain elements that are only in .Net 4 and VS10 and it's beyond RIA team when it comes to these requirements. So, RIA had no other choice!

My humble suggestion (and it's a good suggestion) to move to VS10 and new RIA and new WCF4.0 and EF4.0. You'll be better off!

Note: I don't speak on behave of Microsoft or RIA team, just my own suggestion.

Good luck!

UPDATE:

The link to the sample code is fixed and working;
Thanks Nikhil!

..Ben

Yes, Ben is right.... SL4 targets VS 2010 and .Net 4.0 and not VS 2008

this was not a thing that MS wanted to force on us... it was just not really possible / worth the re-doing of VS 2008 to make it work.

on the plus side if you get vs 2010 you can still maintain projects that target .net 2.0 and 3.0 and 3.5 so it's not like you have keep both versions and switch back and forth ....

Thanks Ben Hayat so i have to ship on VS2010.  

They removed the XAML designer in 2008 because of stability and performance issues,

they will not be adding it again... unless they release an SP2 which is unlikely

(This only applies to silverlight, not to WPF)

Yes, you're much better off to deply based on WCF 4 and EF 4, which are both used with RIA RTW and VS10;

I stayed with RIA PDC (.net 3.5/vs2088) until MIX, but now they are all in sync and the RTW of SL4, RIA, .Net all happening in April. Time to move on.

Good luck with your move!

Validation is always one of the tasks i dred. This makes things alot more streamlined.. good work.

John/Nikhil,

Can this example be considered as blue-print of MVVM in SIlverlight?

If not, what changes will you consider to make it like one?

I am struggling to understand the use of ProductEditTask and Product partial classes.

If MainPageModel is used as VM for MainPage, then couldn't it have contained all the operations in ProdctEditTask class?

Any explanation will be really helpful.

Thanks,
Mahesh.