Understanding the new features of Silverlight 2 Beta2
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by Scott Guthrie
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Web Services

Beta2 enables significantly improved interop with SOAP based web-services.  Web service proxy class end-point URLs can now be configured without recompiling applications.  Visual Studio also now has a new "Silverlight-enabled WCF Service" project item template that you can add to ASP.NET web projects to publish services to clients.

REST and ADO.NET Data Services

Silverlight includes support for working with REST based web-services. 

Beta2 adds support for calling and consuming ADO.NET Data Services (formerly code-named: "Astoria").  ADO.NET Data Services will ship as part of .NET 3.5 SP1 and makes it easy to publish data end-points within an ASP.NET web project that are consumable from any client using REST URIs.  Silverlight Beta2 now includes ADO.NET Data Service client support that allows you to easily call these services (and optionally use LINQ expressions within Silverlight to express remote REST queries to them).

JSON

Silverlight supports calling JSON-based services on the web. 

Beta2 now includes LINQ to JSON support that enables you to easily query, filter, and map JSON results to .NET objects within a Silverlight application.  This makes it easy to call and work with existing AJAX end-points and services published on the web. 


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