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Implementing WCF

Integration through Biztalk, August 29, 2007
Views: 10,828 | Hits 282

Why WCF?WCF aka Windows Communication Foundation services is latest product from MSFT for creating Distributive Applications. Year 2007 has been buzzing with new product releases on a weekly basis. It...

WCF and Apache AXIS interop

All About Interop, October 9, 2007
Views: 6,713 | Hits 501

I'm getting back to building and publishing working examples. My latest is a working example of a WCF client communicating with an Apache AXIS 1.4 server, using web services.  You can find it he...

WCF exception: The remote certificate is invalid according to the validation procedure

hongmeigs WebLog, May 1, 2007
Views: 6,482 | Hits 349

If you are using Https, this might fix it.             ServicePointManager.ServerCertificateValidationCallback = RemoteCertificateValidationCallb...

WCF, IErrorHandler and propagating faults

Glavs Blog, October 16, 2008
Views: 6,341 | Hits 70

On a recent project, I have needed to set up a generic error handler just above the service layer which ensured that only known exceptions were propagated up to the client in a controlled manner. This...

Controlling HTTP Cookies on a WCF Client

kennyw.com, December 1, 2007
Views: 6,316 | Hits 956

A few customers have tried to control their HTTP Cookie headers from a smart client (using a previously cached cookie for example). The common experience has been “I enabled AllowCookies=true, and add...

Architecture, WCF Services and Caching

Glavs Blog, August 10, 2007
Views: 6,257 | Hits 208

Blog Article On a recent project we had the requirement to produce a web application as part of the main deliverable, but also to provide a services layer or implementation, that will allow external c...

Populating Silverlight TreeView from WCF Service with LINQ to SQL

the telerik blogs, August 27, 2008
Views: 5,748 | Hits 74

In this example I will show you how to populate a RadTreeView using LINQ and WCF. Also you will see how to transform a flat data into a hierarchical one. The target result is: 1. Create a new Silver...

My Dumb WCF Lesson for the day

Julia Lerman Blog - Dont Be Iffy..., January 18, 2008
Views: 5,680 | Hits 1,208

I was moving some code around and had a nice WCF Interface and Service Interface created. So I copied them into a new project where I was re-creating my work. When I tried to debug (self-host) the s...

WCF Client Performance

Glavs Blog, April 21, 2007
Views: 5,366 | Hits 241

One of the easiest performance traps when using WCF services is constant creation of new client proxies when accessing those services. In WSE land, this was common place: MyProxy prox = new MyProxy();...

Take Two: A jQuery WCF/ASMX ServiceProxy Client

Rick Strahls WebLog, September 16, 2009
Views: 5,146 | Hits 535

Ive discussed creating a WCF or ASMX Service proxy for operation with jQuery and without using the Microsoft AJAX libraries. This was some time ago and some things have changed since then most notabl...

Host multiple services in windows service (on-line WCF services and batch services)

Wortzels blog, December 14, 2007
Views: 4,984 | Hits 670

In the last sprint we (Ori my teammate and me) had a task to create an infrastructure to manage some common processes in our systems. The processes can be a batch, schedule tasks and on-line services...

WCF & ASP.NET Role Provider

Glavs Blog, February 8, 2008
Views: 4,731 | Hits 89

So I was talking to Shea Strickland a relatively new starter in readify who is doing some WCF work and asked  about the role provider support in WCF. He pointed me to an article by Dominick Baier...

WCF - Handling Generic Messages

Glavs Blog, January 19, 2008
Views: 4,730 | Hits 205

I had a requirement for a client where we were upgrading a web site that had a business web service exposed, and we had to create a new service that was identical in operation to the old (from a consu...

How to use performance counters to diagnose performance of WCF applications

Wenlong Dongs Blog, September 7, 2007
Views: 4,470 | Hits 352

There are many ways to diagnose the performance of WCF applications. Here is a simple one that uses performance counters to get some rough ideas. There are two categories of performance counters that ...

Sending Attachments with WCF

Pablo M. Cibraro (aka Cibrax), August 29, 2007
Views: 4,432 | Hits 502

WCF mainly supports two modes to send attachments in a efficient way, an streamed mode and a buffered/chunked mode. In the first mode, the transport basically transfers large amount of data...

Web services interop with WCF - Relevant Forum Questions

All About Interop, September 4, 2008
Views: 4,417 | Hits 130

I was just browsing the WCF forum on MSDN. Here's a summary of the interesting threads dealing with interop: How to map complex data types exposed by a J2EE web services, into a WCF client? How to u...

Self-Hosting WCF Services in Windows Services

Keyvan Nayyeri, September 25, 2007
Views: 4,395 | Hits 662

You know that there are two common ways to host a Windows Communication Foundation service as a self-hosted service or in IIS.  But there is a division of self-hosting that is a bit different and...

Best Practice: Always open WCF client proxy explicitly when it is shared

Wenlong Dongs Blog, October 26, 2007
Views: 4,124 | Hits 308

In order to provide symmetric programming model for the client-side as for the server-side, WCF leverages .NET Remoting transparent proxy technique so that the service contract interface can be used s...

Sample Starter Project Using WCF and MSMQ

The Code Project Latest Articles, January 4, 2009
Views: 4,079 | Hits 285

This project is provided as a starter application to get you started with WCF and MSMQ. It uses MsmqIntegrationBinding. The sample messages borrow their structure from the Northwind database, but that...

WCF and WSDL

Thom Robbins .NET Weblog, February 5, 2007
Views: 3,986 | Hits 119

By definition the Web Service Description Language (WSDL) is the XML based document that describes a Web Service. It specifies the location of the service and the operation or methods the servic...

Wcf configuration - InstanceContextMode and ConcurrencyMode

Wortzels blog, March 7, 2009
Views: 3,896 | Hits 349

Two of the important configuration settings in WCF refer to InstanceContextMode and ConcurrencyMode. These two are very important to control the system resources in your live service. The first (Insta...

Detect Client IP in WCF 3.5

Keyvan Nayyeri, January 28, 2008
Views: 3,883 | Hits 346

One of the features that was missing from WCF 3.0 was the ability to detect client IP address in services. For a technology that is completely built on top of SOA hence a server/client mechanism where...

WSE, DIME; WCF, MTOM; OH My!

Stephen Kaufman's WebLog, July 20, 2009
Views: 3,856 | Hits 129

I was recently working on a proof of concept where we needed to interface to a repository that returned the documents using DIME attachments.  I don't know if you have had the 'opportunity' to wo...

Free WCF Training

Guy Barrettes WebLog, November 30, 2008
Views: 3,794 | Hits 271

Someone emailed me looking for some free WCF training.  There are numerous free resources available.  Here are a few: WCF Portal:http://msdn.microsoft.com/en-us/netframework/aa663324.aspx Fr...

Why Does WCF Become Slow After Being Idle For 15 Seconds?

Wenlong Dongs Blog, February 11, 2010
Views: 3,709 | Hits 98

Customers reported the following WCF performance issue recently:         A WCF service over TCP or Named Pipe idles for over 15 seconds and the first request after t...

Notify Client Applications Using WCF Callbacks

EggHeadCafe.com New Articles, September 5, 2009
Views: 3,613 | Hits 12

This article shows how to use WCF Callbacks in a client-server scenario where the server notifies connected clients of any event, like changes in database records or message from a client that is broa...

Passing data efficient to and from WCF Services

Patrik Löwendahls shout, July 4, 2007
Views: 3,607 | Hits 231

I spend some time in the msdn forums on and off (http://forums.microsoft.com/MSDN/) and a couple of days ago a question about contract design in WCF appeared. The idea was to get the most out of the W...

Fixing MaxItemsInObjectGraph quota Error in WCF Service

Steven Smith, April 28, 2011
Views: 3,578 | Hits 32

I have a WCF Service that occasionally yields a message like this one: Maximum number of items that can be serialized or deserialized in an object graph is '65536'. Change the object graph or incr...

WCF Custom FaultException

Guy Barrettes WebLog, April 11, 2008
Views: 3,568 | Hits 137

I was trying to return a WCF custom FaultException and just couldnt figure out how to read the custom info I was sending from the client when I found this blog entry from Jean-Paul Smit:http...

Consuming a WCF Service from an SSRS (RDL) Server Report

The Code Project Latest Articles, June 15, 2009
Views: 3,512 | Hits 242

An article illustrating how to consume a WCF service from an SSRS Server Report...

How to Use a Singleton WCF Proxy to Call Different Workflow Service Instances in .NET 3.5?

Wenlong Dongs Blog, November 8, 2007
Views: 3,507 | Hits 247

In .NET 3.5, a new type WorkflowServiceHost is introduced to provide the integration of WF and WCF. On the server-side, ReceiveActivty plays the main role to implement WCF service operations. With thi...

IDisposable and WCF

Steven Smith, February 9, 2009
Views: 3,457 | Hits 18

Recently weve been separating our monolithic application into smaller systems which communicate via services.  Were using WCF for this communication, and one of the things that weve quickly notic...

A Walkthrough of WCF Support in Visual Studio 2008

The Visual Basic Team, August 30, 2007
Views: 3,381 | Hits 394

One feature in Visual Studio 2008 I would like to highlight is our support of Windows Communication Foundation. WCF was introduced with .NET Fx3.0 as a next generation communications API. Previously ...

Use IOperationBehavior to Customize Operation Behavior in WCF

Keyvan Nayyeri, February 19, 2009
Views: 3,368 | Hits 196

Windows Communication Foundation is one of the top technologies in the field of flexibility and customizability and those who have worked with this great product already know that a simple task can be...

Testing WCF REST Services

Pablo M. Cibraro (aka Cibrax), December 11, 2008
Views: 3,353 | Hits 207

Many of the WCF services that we build today rely on the WCF context (OperationContext and WebOperationContext) for performing different things, specially REST services where the context is necessary ...

WSDL-First development with WCF

All About Interop, September 24, 2008
Views: 3,309 | Hits 125

A couple days ago I mentioned that you could do WSDL-First development with WCF, but I didn't go into detail as to how that would work.  Somebody asked, so I guess I'll describe the specific step...

Eliminate Server Polling with WCF Callbacks

DevX: .NET Feed, August 8, 2008
Views: 3,261 | Hits 245

Client applications that share centralized information typically poll a central service to get updated informationa pull model. But by using WCF callbacks, the central service can push updated informa...

WCF and JQuery Exception Handling

Chris Love's Official Blog - Professional ASP.NET, February 12, 2010
Views: 3,244 | Hits 110

Now that I have covered the basics of calling a WCF service using JQuerys AJAX functionality with JSON its time to deal with bugs. Yep, we all create them and have to troubleshoot them on a daily basi...

WCF Service Debugging with the serviceDebug element.

Peter Brombergs UnBlog, July 29, 2007
Views: 3,164 | Hits 365

Learning the ""WCF way to do stuff"" that you already know how to do is hard enough - but being able to debug boo-boos and fix them along the way can be an important part of your toolset. Since W...

OAuth channel for WCF RESTful services

Pablo M. Cibraro (aka Cibrax), November 14, 2008
Views: 3,158 | Hits 67

While OpenID and WS-Federation focus on delegating user identity (or a collection of identity claims), OAuth was designed to address a different and complementary scenario, the delegation of user auth...

REST in WCF: Varying response content type based on HTTP Request Headers

All About Interop, November 4, 2008
Views: 3,123 | Hits 129

Damian Mehers made a comment on my blog post from April, but I felt it was worth a full reblog. Damian's used the same WCF extensibility points I used to produce some boilerplate that varies...

How to do SSL pass-through with WCF (a link for the MVP crowd)

Web Services, April 14, 2008
Views: 3,039 | Hits 207

I sat in on a very informative roundtable discussion about WCF tips, tricks and pitfalls this afternoon here at the MVP conference. In that discussion one of the topics that came up was load balancing...

Processing FIFO MSMQ Messages using WCF

Stephen Kaufman's WebLog, September 17, 2007
Views: 2,995 | Hits 201

  I have been having fun working on the middle tier of an application which is using BizTalk, Windows Workflow, MSMQ and the Windows Communication Framework.   One of the requirements is to...

Updated jQuery and WCF 3.5 JSON Samples posted

Rick Strahls WebLog, June 25, 2008
Views: 2,989 | Hits 278

Since I last posted my DevConnection samples, there have been a number of changes with jQuery and jQuery Ui. During the conference and for some of my own applications I'd been using intermediate build...

Wcf configuration - Throttling settings

Wortzels blog, May 11, 2009
Views: 2,962 | Hits 132

In my pervious post I explained how to define the wcf service concurrency and instance context modes. In this post I will show you how to control these specific numbers (number of calls and number of ...

WCF Proxy Generator - Significant Updates

dasBlonde, July 11, 2009
Views: 2,953 | Hits 64

Thanks to a customer of mine (thank you Christoph!) some major improvements have been made to the ExceptionHandlingProxyBase type. Plus, a duplex version now exists. Nothing like using the code in pr...

Example: Validation Application Block and WCF

Patrik Löwendahls shout, June 29, 2007
Views: 2,938 | Hits 205

I'm currently investing a lot of work in both WCF and Enterprise Library 3. It will probably turn out as a couple of blogposts. This post however is just a placeholder for my Validation Application B...

Windows workflow as WCF Service and Workflow persistence

The Code Project Latest Articles, January 19, 2009
Views: 2,935 | Hits 219

Workflow calculator WCF service , an example of long running workflows...

Use IDispatchMessageFormatter and IClientMessageFormatter to Customize Messages in WCF

Keyvan Nayyeri, February 23, 2009
Views: 2,907 | Hits 176

In one of my recent blog posts I talked about IOperationBehavior interface as an extensibility point to customize operation behavior in Windows Communication Foundation. There I pointed that this inte...