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10-4 Episode 27: Server-Driven Paging with ADO.NET Data Services

Posted: Jul 15, 2009 at 9:59 AM
By: Jonathan Carter
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In this episode of 10-4, we discuss a new feature coming in the next release of ADO.NET Data Services: server-driven paging. This allows you to constrain the size of result sets that can be requested by clients, eliminating potentially problematic scenarios. In addition, clients can also now request the total count of an entity set, without having to retrieve its data in entirety.

ADO.NET Data Services 1.5 CTP1:
http://www.microsoft.com/downloads/details.aspx?FamilyID=3e3d4eaf-227b-4ad3-ad0d-3613db8aa9df&displaylang=en

For more 10-4 episodes, be sure to visit:
http://channel9.msdn.com/shows/10-4

Visual Studio Topic Area on Channel 9:
http://channel9.msdn.com/VisualStudio

Visual Studio 2010 CTP VPC:
http://tinyurl.com/GetCTP

10-4! Over and out!

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cdwatkins

Jul 16, 2009 at 7:49 AM

Well it took all of about 5 seconds after seeing Astoria (before it became ADO.NET data services), for me to ask for a total record count. Glad to know you guys finnaly got this in.
Tavo2k4
Aug 04, 2009 at 8:30 AM
I created a plain Web application (not SL) and added an ADO.net Data Service, Entity Data Model, and Domain Service.

I am using the Entity Data Model as the DAL and the Domain Service as the BL. When I use the Domain Service as a data source for the the ADO.NET Data Service, it does not expose any data;
```
 <?xml version="1.0" encoding="utf-8" standalone="yes" ?> 
- <service xml:base="http://localhost:54015/DomainDataService.svc/" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:app="http://www.w3.org/2007/app" xmlns="http://www.w3.org/2007/app">
- <workspace>
  <atom:title>Default</atom:title> 
  </workspace>
  </service>
```
Is it possible to do this in current version of ADO.NET Data Services?

I appreciate any help on this

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