Comment Feed for Channel 9 - Silverlight TV 18: WCF RIA Services Validation http://ecn.channel9.msdn.com/o9/previewImages/100/538811_100x75.jpg Channel 9 - Silverlight TV 18: WCF RIA Services Validation Just prior to MIX10, Nikhil Kothari appears on the show to demonstrate some of the key advantages around validation when using WCF RIA Services. He demonstrates how to use a Domain Service to expose your domain model and how to create a custom service method to further filter your data server side. Nikhil also shows how the Domain Services generates validation rules using the database attributes such as required fields or maximum string lengths. Other topics Nikhil covers: Domain service generated services and validation Custom service methods Adding your own validation attributes Creating custom validation methods for server and client Creating cross property validation in an entity Creating server only validation that may be called asynchronously from the client Showing validation errors to the user Relevant links: Silverlight Training Course on Channel 9 Nikhil's Blog  WCF RIA Services  John's Blog  Follow us on Twitter @SilverlightTV  en Wed, 22 May 2013 23:10:37 GMT Wed, 22 May 2013 23:10:37 GMT Rev9 Re: Silverlight TV 18: WCF RIA Services Validation John, you ask great questions, as if you could read my mind Smiley

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) Smiley

..Ben

posted by Ben Hayat

]]> http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634051416160000000 Thu, 25 Mar 2010 19:20:16 GMT http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634051416160000000 Ben Hayat Re: Silverlight TV 18: WCF RIA Services Validation Ben - Thanks, glad you liked it. You can get the code from Nikhil's blog post righ here: http://www.nikhilk.net/RIA-Services-Validation.aspx

posted by jopapa

]]> http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634051426240000000 Thu, 25 Mar 2010 19:37:04 GMT http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634051426240000000 jopapa Re: Silverlight TV 18: WCF RIA Services Validation 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 Smiley Dr. Sneath picked a good one. I bet Disney is upset Smiley

 

Thanks!

 

posted by Ben Hayat

]]> http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634051432800000000 Thu, 25 Mar 2010 19:48:00 GMT http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634051432800000000 Ben Hayat Re: Silverlight TV 18: WCF RIA Services Validation 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!

posted by PerfectPhase

]]> http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634051527490000000 Thu, 25 Mar 2010 22:25:49 GMT http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634051527490000000 PerfectPhase Re: Silverlight TV 18: WCF RIA Services Validation Great ep, also very interested in the validation based on db/xml rules.

posted by chooksy

]]> http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634051637810000000 Fri, 26 Mar 2010 01:29:41 GMT http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634051637810000000 chooksy Re: Silverlight TV 18: WCF RIA Services Validation Ben - Thanks for the head sup. Nikhil just updated his blog post with the code from this episode.

 

posted by jopapa

]]> http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634052182160000000 Fri, 26 Mar 2010 16:36:56 GMT http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634052182160000000 jopapa Re: Silverlight TV 18: WCF RIA Services Validation  

PerfectPhase & Chooksy - I'll see if I can line up an episode showing how to do DB or XML driven validation. Thanks for the interest!

posted by jopapa

]]> http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634052182250000000 Fri, 26 Mar 2010 16:37:05 GMT http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634052182250000000 jopapa Re: Silverlight TV 18: WCF RIA Services Validation 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

posted by Atif Shahzad

]]> http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634052277740000000 Fri, 26 Mar 2010 19:16:14 GMT http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634052277740000000 Atif Shahzad Re: Silverlight TV 18: WCF RIA Services Validation >>Thanks for the head sup. Nikhil just updated his blog post with the code from this episode.

 

@John;

Except that the link is broken Smiley

I just left Nikhil a message on his blog;

 

thanks for keeping alert attentions!

posted by Ben Hayat

]]> http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634052330850000000 Fri, 26 Mar 2010 20:44:45 GMT http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634052330850000000 Ben Hayat Re: Silverlight TV 18: WCF RIA Services Validation @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!

posted by Ben Hayat

]]> http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634052337280000000 Fri, 26 Mar 2010 20:55:28 GMT http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634052337280000000 Ben Hayat Re: Silverlight TV 18: WCF RIA Services Validation UPDATE:

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

..Ben

 

posted by Ben Hayat

]]> http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634052347080000000 Fri, 26 Mar 2010 21:11:48 GMT http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634052347080000000 Ben Hayat Re: Silverlight TV 18: WCF RIA Services Validation 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 ....

posted by figuerres

]]> http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634052397750000000 Fri, 26 Mar 2010 22:36:15 GMT http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634052397750000000 figuerres Re: Silverlight TV 18: WCF RIA Services Validation Thanks Ben Hayat so i have to ship on VS2010.Smiley  

posted by Atif Shahzad

]]> http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634053184160000000 Sat, 27 Mar 2010 20:26:56 GMT http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634053184160000000 Atif Shahzad Re: Silverlight TV 18: WCF RIA Services Validation 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)

posted by TimothyP

]]> http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634053995250000000 Sun, 28 Mar 2010 18:58:45 GMT http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634053995250000000 TimothyP Re: Silverlight TV 18: WCF RIA Services Validation 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!

posted by Ben Hayat

]]> http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634054051850000000 Sun, 28 Mar 2010 20:33:05 GMT http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634054051850000000 Ben Hayat Re: Silverlight TV 18: WCF RIA Services Validation Validation is always one of the tasks i dred. This makes things alot more streamlined.. good work.

posted by Weqster

]]> http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634063842250000000 Fri, 09 Apr 2010 04:30:25 GMT http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634063842250000000 Weqster Re: Silverlight TV 18: WCF RIA Services Validation 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.

posted by MaheshK

]]> http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634083977350000000 Sun, 02 May 2010 11:48:55 GMT http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-18-WCF-RIA-Services-Validation#c634083977350000000 MaheshK