Extending WCF Data Service to synthesize missing data on request

Posted by Schneider on Stack Overflow See other posts from Stack Overflow or by Schneider
Published on 2010-04-01T05:29:47Z Indexed on 2010/04/01 5:33 UTC
Read the original article Hit count: 679

Filed under:

wcf

|

wcf-data-services

|

ado.net-data-services

I have got a WCF Data Service based on a LINQ to SQL data provider.

I am making a query "get me all the records between two dates".

The problem is that I want to synthesize two extra records such that I always get records that fall on the start and end dates, plus all the ones in between which come from the database.

Is there a way to "intercept" the request so I can synthesize these records and return them to the client?

Thanks

© Stack Overflow or respective owner

Related posts about wcf

Calling a WCF service from another WCF service

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi ! I have a WCF service hosted on a windows service on my Server1. It also has IIS on this machine. I call the service from a web app and it works fine. But within this service, I have to call another WCF sevice (also hosted on a windows service) located on Server2. The security credentials are… >>> More
wcf + Byte array through wcf service using MTOM

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, How to pass Byte array through wcf service using MTOM..please give me any sample >>> More
WCF 4.0 new enhancements over WCF 3.5

as seen on Stack Overflow - Search for 'Stack Overflow'
What are the new enhancements in WCF 4.0 and how easy would it be to upgrade existing WCF services to 4.0? >>> More
Reuse classes and objects for both WCF and non-WCF

as seen on Stack Overflow - Search for 'Stack Overflow'
I have several classes such as Order, Customer, etc. These classes serve for holding data and nothing more. I want to be able to reuse these classes in other projects in the future, but for some reason I don't quite understand, WCF forces me to decorate the data members with the [DataMember] attribute… >>> More
Summarizing client side asynchronous invocations in WCF/WCF Silverlight

as seen on Code Project - Search for 'Code Project'
Summarizing client side asynchronous invocations in WCF/WCF Silverlight. Introducing ServiceClient class. >>> More

Related posts about wcf-data-services

How to use "SelectMany" with DataServiceQuery<>

as seen on Stack Overflow - Search for 'Stack Overflow'
I have the following DataServiceQuery running agaist an ADO Data Service (with the update installed to make it run like .net 4): DataServiceQuery<Account> q = (_gsc.Users .Where(c => c.UserId == myId) .SelectMany(c => c.ConsumerXref) .Select(x =>… >>> More
How do I properly host a WCF Data Service in IIS? Why am I getting errors?

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm playing around with WCF Data Services (ADO.NET Data Services). I have an entity framework model pointed at the AdventureWorks database. When I debug my svc file from within Visual Studio, it works great. I can say /awservice.svc/Customers and get back the ATOM feed I expect. If I publish the… >>> More
WCF Data Service BeginSaveChanges not saving changes in Silverlight app

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm having a hell of a time getting WCF Data Services to work within Silverlight. I'm using the VS2010 RC. I've struggled with the cross domain issue requiring the use of clientaccesspolicy.xml & crossdomain.xml files in the web server root folder, but I just couldn't get this to work. I've resorted… >>> More
How to achieve "Blendability" when using DataServiceCollection in my ViewModel

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm looking at using oData endpoints in my Silverlight client. Naturally, I'm doing MVVM and I want the project to be nice and "Blendable" (i.e. I must be able to cleanly use static data instead of the oData endpoints when in design mode.) Now to the problem. I'd like to use the DataServiceCollection… >>> More
WCF Data Service Exception

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I am working on C#.Net with ADO.NET Dataservice WCF Data Services. I try to update one record to relational table, when I reach context.SetLink() I am getting exception("The context is not currently tracking the entity"). I don't know how to solve this problem. My code is specified below. LogNote… >>> More