Posts
  • 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

    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

    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 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...
  • 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

    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

    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

    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

    Simplifying our n-tier development platform: making 3 things 1 thing

    • 9 Comments
    As you’ve probably observed, we’ve been working hard over the past year or so to grow our application stacks to better support the types of applications (Silverlight, rich desktop, AJAX, etc) and services (SOAP, REST, etc) that are required to build modern...
  • 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

    WCF Data Services 5.0.1 Released

    • 13 Comments
    We have just pushed the official bits for 5.0.1 to NuGet and should be releasing an updated MSI sometime within the next week. Thanks to feedback from the community we found and fixed several bugs, detailed below. NuGet Links http://www.nuget.org/packages...
  • OData Team

    ADO.NET Data Services Update for .NET Framework 3.5 SP1 - Refresh

    • 1 Comments
    The Data Services team has released a refresh of the ADO.NET Data Services Update for .NET Framework 3.5 SP1 today and provides fixes for issues reported to us in the update to .NET Framework 3.5 SP1. For Windows Vista, Windows XP, Windows Server 2003...
  • 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 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

    Announcing the OData SDK

    • 37 Comments
    Last November at PDC 09 we announced the Open Data Protocol (OData), providing a way to unlock your data and free it from silos that exist in applications today. OData makes it easy for data to be shared in a manner that follows the philosophy of Open...
  • OData Team

    Announcing WCF Data Services Oct 2011 CTP for .NET 4 and Silverlight 4

    • 8 Comments
        I’m very excited to announce the release of the October 2011 CTP of the next version of WCF Data Services libraries. This release includes libraries for .NET 4 and Silverlight 4 with new client and server features in addition to those included...
  • 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

    Trying out the prerelease OData Client T4 template

    • 11 Comments
    TL;DR We recently prereleased an updated OData Client T4 template to NuGet. The template will codegen classes for working with OData v3 services, but full support has not been added for all v3 features. What is the OData Client T4 template? The OData...
  • OData Team

    OData 101: Building our first OData-based Windows Store app (Part 1)

    • 3 Comments
    Download the sample code In this OData 101 we will build a Windows Store app that consumes and displays movies from the Netflix OData feed. Specifically, we will focus on getting data, displaying it in the default grid layout, and enabling search functionality...
  • OData Team

    WCF Data Service 5.0.2 Released

    • 4 Comments
    We’re happy to announce the release of WCF Data Services 5.0.2. What’s in this release This release contains a number of bug fixes: Fixes NuGet packages to have explicit version dependencies Fixes a bug where WCF Data Services client did not send the...
  • OData Team

    OData team embraces open source

    • 0 Comments
    Dear OData lovers, As many of you may have already noticed, the OData team is embracing open source. What does this empower you to do? You now can: About codes Get and build them Run tests: unit tests, functional tests & end...
  • OData Team

    Announcing ADO.NET Data Services v1.5 CTP1

    • 50 Comments
    It's been a little while since we've written about the future direction of data services, so this post is intended to layout our thinking towards our next release. The release described below isn't yet available, but should be in the coming months, so...
  • OData Team

    Alpha preview of Project Codename "Astoria Offline" coming soon

    • 6 Comments
    As we already discussed in a previous blog post , one of the problem spaces related to data services we’d like to take on is synchronization-capable services, enabling offline scenarios. We’re still in the early stages of the project, where...
  • OData Team

    Related entries and feeds: links and link expansion

    • 11 Comments
    While going through application scenarios for the ADO.NET Data Services Framework (Project Astoria) one of the first things we noticed is that data-centric applications usually want to bring down graphs of related resources in each interaction with the...
  • OData Team

    Optimistic Concurrency & Data Services

    • 14 Comments
    Different applications have different requirements around consistency and how concurrent modifications are handled. I’ll oversimplify and put all these applications in two buckets: either you care about controlling concurrent changes or you don’t. If...
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