Posts
  • OData Team

    New version of OData Validator

    • 14 Comments
    The OData team has been working on updating the OData Validator tool to support the new JSON format validation. We are pleased to announce that the tool now supports validating your V3 service for all three formats – ATOM, old JSON format (aka JSON Verbose...
  • OData Team

    New and improved EULA!

    • 5 Comments
    TL;DR: You can now (legally) use our .NET OData client and ODataLib on Android and iOS. Backstory For a while now we have been working with our legal team to improve the terms you agree to when you use one of our libraries (WCF Data Services, our...
  • OData Team

    OData Client Tools for Windows Phone Apps Now Available

    • 2 Comments
    Windows Phone 8 and Windows Phone SDK 8.0 were just announced and we are pleased to announce that OData Client Tools for Windows Phone 8 is also now available from the download center. OData Client Tools for Windows Phone 8 brings OData V3 support to...
  • OData Team

    Merge vs. Replace Semantics for Update Operations

    • 18 Comments
    So far Astoria has used “merge” semantics for update. That is, an “update” operation (an HTTP PUT request) replaces the values of the properties for the target entity that are specified in the input payload; this applies both to properties and links....
  • 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

    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

    WCF Data Services 5.2.0 Released

    • 12 Comments
    We’re pleased to announce that today we are releasing NuGet packages and a tools installer for WCF Data Services 5.2.0. As mentioned in the prerelease blog post , this release brings in the UriParser from ODataLib Contrib and contains a few bug fixes...
  • OData Team

    [Tutorial & sample] Functions & Actions in Web API V2.2 for OData V4.0 – Type Scenario

    • 1 Comments
    Introduction Functions and actions are two of the most important parts in OData. They are always very useful to define special/customized server-side behaviors to process the data in OData services. From OData V4 spec , functions and actions both...
  • OData Team

    [Announcement] WCF Data Services 5.6.3 RTM Tools Installer Release

    • 0 Comments
    We are happy to announce the release of WCF Data Services tooling version 5.6.3. It enables “Add Service Reference” to work with .NET 4.5.2 for consuming OData V1-3 services. Previously, when you try to “Add Service Reference”...
  • OData Team

    WCF Data Services 5.5.0 Release

    • 14 Comments
    WCF Data Services 5.5.0 has officially been released! The 5.5.0 release will be another NuGet-only release as we did not make any updates to the Visual Studio tooling. The last tooling update was version 5.3.0 . Services created using this version of...
  • OData Team

    Updated Item Templates for Microsoft Visual Studio 11 Express for Windows Developer Preview

    • 10 Comments
    Microsoft recently released the developer preview of the next version Windows as well as a developer preview of Visual Studio 11 for building apps on the new version of Windows. Some of you may have noticed that the “New Item” template for...
  • 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

    Actions in WCF Data Services – Part 2: How IDataServiceActionProvider works

    • 2 Comments
    In this post we will explorer the IDataServiceActionProvider interface, which must be implemented to add Actions to a WCF Data Service. However if you are simply creating an OData Service and you can find an implementation of IDataServiceActionProvider...
  • OData Team

    Announcing WCF Data Services June 2011 CTP for .NET4 & SL4

    • 8 Comments
    Today we are releasing June CTP of the next version of the WCF Data Services libraries targeting.NET 4 and Silverlight 4.  Based on broad community feedback , in addition to features shipped as part of Oct 2010 CTP1 , I’m happy to announce that this...
  • 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

    RESTing on the slopes

    • 9 Comments
    This past week we attended to some very high priority issues (shown below). We got a few good shots of our team .... This isn't quite the whole Astoria team (the next set of picks we'll have to get one of the entire team), but the folks in the picture...
  • OData Team

    WCF Data Service 5.1.0-rc2 Released

    • 15 Comments
    Today we are releasing refreshed NuGet packages as well as an installer for WCF Data Services 5.1.0-rc2 . This RC is very close to complete. We do still have a few optimizations to make in the payload, but this RC is very representative of the final product...
  • OData Team

    Breaking Down ‘Data Silos’ – The Open Data Protocol (OData)

    • 2 Comments
    A few weeks ago we posted about steps we’ve been taking to enable a wide range of data sources (DB, SharePoint, Reports, Cloud storage services, etc) to expose their data for programmatic access from any platform (Java, PHP, Silverlight, .NET, AJAX, etc...
  • OData Team

    Using Geospatial Data

    • 3 Comments
    This CTP of WCF Data Services adds support for geospatial data. The release allows use of all of the OData geospatial data types and the geo.distance() canonical function. This enables two key scenarios: Read and write geospatial data (all types supported...
  • OData Team

    WCF Data Services 5.3.0-rc1 Prerelease

    • 2 Comments
    Today we released an updated version of the WCF Data Services NuGet packages and tools installer . This version of WCF DS has some notable new features as well as several bug fixes. What is in the release: Instance annotations on feeds and entries (JSON...
  • OData Team

    Vocabularies in WCF Data Services

    • 11 Comments
    Update (6/4/2012): This post is updated to reflect the few changes that were made to the vocabularies in OData v3 and the vocabularies feature in WCF Data Services 5.0. Please download the WCF Data Services 5.0 from the download center to follow along...
  • OData Team

    Astoria futures: offline-enabled data services

    • 17 Comments
    We mentioned that we were doing some early thinking of “Astoria Offline” back in Mix 2008, where we even demo’ed an early proof of concept. Now we’ve been working on various design aspects of Data Services for its future versions...
  • OData Team

    Relationship links

    • 3 Comments
    Problem Statement OData (the protocol used by WCF Data Services) enables you to address the relationships between Entries. This functionality is required to be able to create or change a relationship between two instances, such as an Order_Detail that...
  • OData Team

    JSON Light Sample Payloads

    • 1 Comments
    We recently put together a document that contains some of our thinking about JSON light as well as a whole slew of sample payloads. We would love to hear any feedback you have on the format; you can comment in the accompanying OneNote. We will be accepting...
  • OData Team

    Using the ADO.NET Data Services Silverlight client in x-domain and out of browser scenarios – I

    • 5 Comments
    With the release of ADO.NET Data Services v1.5 CTP2 , you can now use the Silverlight Astoria client library to access Cross-Domain services and applications written with the new client library can go out of browser. The new Client Http networking stack...
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