Posts
  • OData Team

    Announcing datajs version 0.0.4

    • 0 Comments
      We are excited to announce that datajs version 0.0.4 is now available at http://datajs.codeplex.com/ . The latest release adds support for Reactive Extensions for Javascript (RxJs), forward and backwards cache filtering, extended metadata, simplified...
  • OData Team

    Any/All support in WCF Data Services

    • 3 Comments
    The latest CTP of WCF Data Services adds one of the most frequently requested features , namely support for Any/All queries. Prior to this CTP there was no way to filter results based on properties of a related collection (or a multi-value property)....
  • OData Team

    Accessing an OData Media Resource Stream from a Windows Phone 7 Application (Streaming Provider Series-Part 3)

    • 1 Comments
    In this third post in the series on implementing a streaming data provider, we show how to use the OData client library for Windows Phone 7 to asynchronously access binary data exposed by an Open Data Protocol (OData) feed. We also show how to asynchronously...
  • OData Team

    Using Microsoft WCF Data Services Reference Data Caching Extensions (CTP)

    • 4 Comments
    Introduction Last week at MIX we announced proposed extensions to the OData protocol for obtaining changes (deltas) to the results of an OData Request. The extensions provide a hypermedia-driven model for obtaining a "Delta Link" from a delta...
  • OData Team

    Reference Data Caching Walkthrough

    • 3 Comments
    This walkthrough shows how a simple web application can be built using the reference data caching features in the “Microsoft WCF Data Services For .NET March 2011 Community Technical Preview with Reference Data Caching Extensions” aka “...
  • OData Team

    Announcing datajs version 0.0.3

    • 1 Comments
    Today we are very excited to announce a new release of datajs. The latest release of datajs makes use of HTML5 storage capabilities to provide a caching component that makes your web application more interactive by reducing the impact of network latency...
  • OData Team

    Announcing WCF Data Services March 2011 CTP2 for .NET4 & SL4

    • 4 Comments
      Today we are releasing CTP2 of the next version of the WCF Data Services libraries.  This release targets .NET 4 and Silverlight 4 and includes new client and server features in addition to those that shipped as part Oct 2010 CTP1 .  ...
  • OData Team

    Introduction to Derived Properties

    • 5 Comments
    What is a derived property? A derived property is a property that does not exist on the EntityType associated with the EntitySet; rather it exists on a type that derives from the base type of the entity set. This feature has been among our customers top...
  • OData Team

    New JavaScript library for OData and beyond

    • 7 Comments
    Today we are announcing a new project called ‘datajs’, a cross-browser JavaScript library that enables web applications to do more with data. datajs leverages modern protocols such as JSON and OData as well as HTML5-enabled browser features...
  • OData Team

    Connecting to an OAuth 2.0 protected OData Service

    • 1 Comments
    This post creates a Windows Phone 7 client application for the OAuth 2.0 protected OData service we created in the last post . Prerequisites: To run this code you will need: An AppFabric Access Control Services (ACS) instance & OData Service...
  • OData Team

    OData and OAuth – protecting an OData Service using OAuth 2.0

    • 6 Comments
    In this post you will learn how to create an OData service that is protected using OAuth 2.0, which is the OData team’s official recommendation in these scenarios: Delegation: In a delegation scenario a third party (generally an application...
  • OData Team

    Using ASP.NET output caching with Data Services

    • 0 Comments
    A lot of our customers have asked us how to cache results from their Data Service. Which is why I want to point you to this excellent post by Peter Qian (a developer on the Data Services team) that shows you how to setup ASP.NET output caching. It...
  • OData Team

    Entity Set Resolver

    • 6 Comments
    Problem Statement: In previous versions, the WCF Data Services .NET and Silverlight client libraries always assumed that all collections (aka entity sets) had the same base URI. This assumption was in place because the library used the URI provided...
  • OData Team

    Additional Feed Customization Support

    • 0 Comments
    1.      Problem: In the previous version, WCF Data Services introduced the feed customization feature. This feature enabled users to map properties to certain elements in the Atom document. As an example, users could map a name property...
  • OData Team

    Named Resource Streams

    • 2 Comments
    One of the new WCF Data Services features in the October 2010 CTP is something called Named Resource Streams. Background Data Services already supports Media Link Entries which allows you to associate a single streamed blob with an entry.   For example...
  • OData Team

    Introduction to Multi-Valued Properties

    • 3 Comments
    Although you may see both the terms, “Bags” and “Multi-Valued Property”, they refer to the same thing. While this naming change was not included with the latest WCF Data Services 2010 October CTP release, based on community feedback, we’ve decided to...
  • OData Team

    Data Services Client for Win Phone 7 Now Available!

    • 3 Comments
      Today, at the PDC , we announced that a production-ready version of the WCF Data Services client for Windows Phone 7 is available for download from http://odata.codeplex.com .  This means that it is now simple to create an app that connects...
  • OData Team

    Walkthrough: OData client for Windows Live Services

    • 1 Comments
    Background As described recently on the Windows Live team blog , programming against your Windows Live artifacts (Calendar, Photos, etc) is now possible using OData. This blog post will walk through how to use our recently released WCF Data Services CTP...
  • OData Team

    Announcing WCF Data Services Oct 2010 CTP1 for .NET4 & SL4

    • 6 Comments
    Today we are releasing CTP1 of the next version of the WCF Data Services libraries.  This release targets .NET 4 and Silverlight 4 and includes new client and server features in addition to those that shipped as part of .NET 4 & SL4.  With...
  • OData Team

    WCF Data Services Client Library and Windows Phone 7 – Next Steps

    • 2 Comments
    We’ve received a fair number of questions regarding our current CTP library for Windows Phone 7 and what our RTM plans are. The goal of this post is to address many of those questions by describing our plans for the coming months…. Background The CTP...
  • OData Team

    ASP.NET Security Vulnerability

    • 2 Comments
    Over the weekend the ASP.NET team released a Microsoft Security Advisory about a security vulnerability found in ASP.NET: http://www.microsoft.com/technet/security/advisory/2416728.mspx The WCF Data Services team looked into the issue and don’t believe...
  • OData Team

    What do you want to see added/changed in WCF Data Services?

    • 8 Comments
    As we’ve posted a few times before on this blog the data services team is beginning to explore improvements and new features for our next release.  As part of this process, it’s critical that we hear your feedback, as it helps us ensure that what...
  • OData Team

    Data Services Streaming Provider Series-Part 2: Accessing a Media Resource Stream from the Client

    • 3 Comments
    In this second post in the series on implementing a streaming data provider, we show how to use the WCF Data Services client library to access binary data exposed by an Open Data Protocol (OData) feed, as well as has how to upload binary data to the data...
  • OData Team

    OData and Authentication – Part 8 – OAuth WRAP

    • 2 Comments
    OAuth WRAP is a claims based authentication protocol supported by the AppFabric Access Control (ACS) which is part of Windows Azure . But most importantly it is REST (and thus OData) friendly too. The idea is that you authenticate against an ACS server...
  • OData Team

    Data Services Streaming Provider Series: Implementing a Streaming Provider (Part 1)

    • 12 Comments
    The Open Data Protocol (OData) enables you to define data feeds that also make binary large object (BLOB) data, such as photos, videos, and documents, available to client applications that consume OData feeds. These BLOBs are not returned within the feed...
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