We are excited to announce that datajs version 0.0.4 is now available at https://datajs.codeplex.com/. The latest release adds support for Reactive Extensions for Javascript (RxJs), forward and backwards cache filtering, extended metadata, simplified OData call configuration, and provides various performance and quality improvements. To g...
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). For example if you have this model: You couldn’t ask for all movies starring someone calle...
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 upload binary data to the data service. This Windows Phone sample is the asynchronous equiv...
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-enabled feed that can later be used to obtain changes from the original results. Along with t...
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 “Reference Data Caching CTP”. The walkthrough isn’t intended for production use but s...
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. The library also comes with a pre-fetcher component that sits on top of the cache. The pre-fetc...
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. Below is a brief summary of the features available in this CTP. Subsequent blog pos...
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 asks since the lack of support makes exposing models with rich, well-defined inheritance hier...
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. ‘datajs’ is an open source project, released under MIT. In this initial release, the...
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: Our application: Our application is a very basic Windows Phone 7 (WP7) application that allows you to browse favorites and if logged in create new favorite...
