The .NET Endpoint

Blog by the .NET and AppFabric teams about WCF and WF development, deployment, and management

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  • Blog Post: Error message in WF4: "The argument of type '<type>' cannot be used. Make sure that it is declared on an activity."

    The following error might occur when an activity executes: The argument of type '<type>' cannot be used. Make sure that it is declared on an activity. If the type above refers to an implementation child, then it's possible that it's being created in the Execute method of the activity. If...
  • Blog Post: WF4 Activity Pack CTP1 Available (State Machine, Database)

    I’m happy to announce that the WF4 Activity Pack CTP1 is now available for download.  This release consists of two different activities, database activities for interacting with a database and the much anticipated State Machine for authoring event driven workflows.  Here are a few key links...
  • Blog Post: Windows Server AppFabric Architecture

    A l ong time ago , applications running on Windows Server were simply EXEs, where developers wrote a lot of custom code on top of the Operating System (OS) to interact with clients and other applications over the network. COM+ and Microsoft Transaction Server (MTS) were added to make it easier to write...
  • Blog Post: New CTP Available for Download: WF Migration Kit

    Happy Monday! It’s an exciting time here as we start ramping up for launch next month. Within the product group, there has been a flurry of activity as they squash their bugs, and the final polish is being placed on the Visual Studio release. In the business group, we’re busy finalizing web content and...
  • Blog Post: Windows Server AppFabric Beta 2 is Available!

    We are excited to announce that the Beta 2 release of Windows Server AppFabric is now available for download via http://msdn.microsoft.com/appfabric . This is the Windows Server AppFabric build that works with the RC (Release Candidate) build of Visual Studio 2010/.NET 4. Windows Server AppFabric is...
  • Blog Post: Conditional GET and ETag Support in WCF WebHttp Services

    This is part ten of a twelve part series that introduces the features of WCF WebHttp Services in .NET 4. In this post we will cover: Generating and including ETags in responses from a WCF WebHttp Service Adding Conditional GET support to a WCF WebHttp Service using ETags Over the course of...
  • Blog Post: Providing WCF and WF Feedback to Microsoft

    Perhaps known to a smaller portion of general community of WCF developers and WF developers, there is a Connection for WCF and Connection for WF that enable you, our customers, to submit bugs and feature suggestions. As the focusing for Visual Studio 2010 and .NET Framework 4 turns to polish and final...
  • Blog Post: Creating Views in WCF WebHttp Service with T4

    This is part nine of a twelve part series that introduces the features of WCF WebHttp Services in .NET 4. In this post we will cover: Learning the basics of T4 (Text Template Transformation Toolkit) Using T4 to create views in WCF WebHttp Services for text-based content Over the course of...
  • Blog Post: RC docs are live!

    The Visual Studio 2010 RC and .NET Framework 4.0 RC went live this week to MSDN subscribers. Our UE team has made available a bunch of improved topics and new topics along with the RC release. All the samples have a readme / documentation topic. More than ~200 WF/WCF sample readmes were added...
  • Blog Post: Returning Custom Formats from WCF WebHttp Services

    This is part eight of a twelve part series that introduces the features of WCF WebHttp Services in .NET 4. In this post we will cover: Using the new WCF WebHttp Services API for content negotiation Returning content with custom formats in addition to XML and JSON Configuring WCF WebHttp Services...
  • Blog Post: Integrating ASP.NET Output Caching with WCF WebHttp Services

    This is part seven of a twelve part series that introduces the features of WCF WebHttp Services in .NET 4. In this post we will cover: Creating ASP.NET cache profiles in configuration for use with WCF WebHttp Services Using the [AspNetCacheProfile] attribute to associate service operations with...
  • Blog Post: Using Routes to Compose WCF WebHttp Services

    This is part six of a twelve part series that introduces the features of WCF WebHttp Services in .NET 4. In this post we will cover: Composing multiple WCF WebHttp Services into a single web service Using ASP.NET routes with WCF WebHttp Services Over the course of this blog post series, we...
  • Blog Post: Error Handling in WCF WebHttp Services with WebFaultException

    This is part five of a twelve part series that introduces the features of WCF WebHttp Services in .NET 4. In this post we will cover: Handling Errors with the WebFaultException class Over the course of this blog post series, we are building a web service called TeamTask . TeamTask allows a team...
  • Blog Post: Automatic and Explicit Format Selection in WCF WebHttp Services

    This is part four of a twelve part series that introduces the features of WCF WebHttp Services in .NET 4. In this post we will cover: Configuring automatic format selection for a WCF WebHttp Service Setting the response format explicitly in code per request Over the course of this blog post...
  • Blog Post: Updating State in WCF WebHttp Services

    This is part three of a twelve part series that introduces the features of WCF WebHttp Services in .NET 4. In this post we will cover: Creating operations for updating server state with the [WebInvoke] attribute Persisting changes with the ADO.NET Entity Framework in a web service scenario ...
  • Blog Post: New Beta 2 docs posted in the WF Migration series

    Welcome to 2010! Over the past week, we posted four new documents into the WF4 Migration Guidance series . We also added new sample code up to the WF4 Migration Guidance Code Gallery page around Workflow Services migration guidance. Revisiting the structure I used in the Beta 1 migration guidance post...
  • Blog Post: Monitoring and troubleshooting with .NET 4 and Windows Server AppFabric

    By now you may have read about the exciting new capabilities in Windows Server AppFabric . In this post we will dive deeper into the features that enable monitoring and troubleshooting of your WCF and WF applications. The monitoring capabilities for WCF and WF applications in AppFabric are built using...
  • Blog Post: Clients and the Automatic Help Page in WCF WebHttp Services

    This is part two of a twelve part series that introduces the features of WCF WebHttp Services in .NET 4. In this post we will cover: Using the HttpClient from the WCF REST Starter Kit Preview 2 Browsing the Automatic Help Page of a WCF WebHttp Service Over the course of this blog post series...
  • Blog Post: Getting Started with WCF WebHttp Services in .NET 4

    This is part one of a twelve part series that introduces the features of WCF WebHttp Services in .NET 4. In this post we will cover: Downloading and using the new online project templates for WCF WebHttp Services Learning the basics of a WCF WebHttp Service : [WebGet] and UriTemplates Creating...
  • Blog Post: Introducing WCF WebHttp Services in .NET 4

    Over the next six weeks we are going to be releasing a series of blog posts that will focus on the new features in .NET 4 around WCF WebHttp Services . WCF WebHttp Services is the flavor of WCF that is most appropriate for developers who need complete control over the URI, format, and protocol when...
  • Blog Post: New Beta 2 docs to help with code migration (from .NET 3.x and .NET 4 Beta 1)

    Fresh on the heels of the beta 2 release of .NET 4/Visual Studio 2010 , the team has been working on supplemental documentation to help you out with evaluation and adoption of WCF and WF in .NET 4. Last week, two sets of documentation went live: WF4 Migration Guidance : The WF team updated the documents...
  • Blog Post: Client Profile in .NET 4

    If you redistribute or require .NET 4 for your applications, you now have the option of installing .NET 4 Client Profile – a subset of the Framework intended for client applications. Even better, Client Profile includes almost all pieces of Windows Workflow Foundation and Windows Communication Foundation...
  • Blog Post: WF4 Changes Between Beta 1 and Beta 2

    Hi all, I’m Matt Winkler , a PM on the WF team and occasional guest blogger here on the endpoint.  I wanted to take a moment to highlight some of the interesting new things in WF4 in Beta 2.  For more info on Beta 2, please check out this page . The goals of a milestone like Beta 2 are two...
  • Blog Post: All WCF, WF, and ‘Dublin’ sessions live on PDC site; 5 Weeks to Go!

    We’re five weeks out from PDC09 , and the rest of our sessions went live last week. I know I posted a couple weeks ago about PDC and sessions that went live, but I wanted to let folks know about the four new sessions – to help you maximize your experience around the Connected Framework technologies!...
  • Blog Post: The team is getting ready for PDC; are you?

    The 2009 Professional Developers Conference (PDC) is less than a couple months away, and the team is starting to create content and demos for the event. The team has been working with PDC event management over the last couple months to secure sessions and space at the event; and I wanted to share with...
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