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Friday, July 18, 2008 5:00 AM

Finding a Client Channel

Where can I get the IContextChannel that OperationContextScope requires? OperationContextScope allows you to create a temporary scope in which context for a service operation can build up before and after the operation is actually called. The constructor
Posted by Nicholas Allen | 1 Comments
Friday, July 11, 2008 5:00 AM

Naming Contracts for Versioning

Some tips for building support for versioning into the naming of data contracts. First, the primary route for versioning should be through the namespace part of the contract rather than the member name part of the contract. Versioning the contract through
Posted by Nicholas Allen | 1 Comments
Tuesday, July 08, 2008 5:00 AM

Adding Headers to a Call (HTTP Version)

Yesterday I talked about adding SOAP headers to an outgoing request using a variety of different methods. The most straightforward method was to create an OperationContextScope in your application code to establish an OutgoingMessageHeaders collection.
Posted by Nicholas Allen | 2 Comments
Monday, July 07, 2008 5:00 AM

Adding Headers to a Call

How do I add SOAP headers to an outgoing request? There are a few different ways to add headers to a message depending on how you need to control the header content and where you need to insert the header. I like to think of these methods as being split
Posted by Nicholas Allen | 2 Comments
Tuesday, May 27, 2008 5:00 AM

Finding the Service Instance

How do I get access to the service instance from inside of a service operation? Assuming that you're executing somewhere that a service operation is meaningful, you'll have access to the service operation context OperationContext.Current. From the service
Posted by Nicholas Allen | 2 Comments
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Wednesday, May 21, 2008 5:00 AM

Faster Known Types in Orcas

When I talked about some of the enhancements in Orcas, I left out a performance improvement for services that use a large number of known types. There are various ways of defining the known types for a service operation, and all of the known type collections
Posted by Nicholas Allen | 3 Comments
Monday, May 19, 2008 5:00 AM

Pointing to External Metadata

I've previously talked about using WSDL extensions to provide custom modifications to the WSDL import and export process. Making modifications to an existing WSDL document or to the existing WSDL processing is a great way to make small changes when the
Posted by Nicholas Allen | 1 Comments
Thursday, May 15, 2008 5:00 AM

Customizing Proxy Configuration

In the past I've written about overriding ApplyConfiguration on a service to take control of the configuration process. There is a similar technique that you can use for client proxies although getting started is not quite as obvious. I'll talk today
Posted by Nicholas Allen | 1 Comments
Friday, May 09, 2008 5:00 AM

Setting the Configuration Name

What's the difference between the Name and ConfigurationName on service contracts and behaviors? The Name property sets the name of the service in metadata while the ConfigurationName property sets the name of the service in configuration. Metadata is
Posted by Nicholas Allen | 2 Comments
Wednesday, May 07, 2008 5:00 AM

Generating Types with Lists

I have a data contract that contains a collection type but the generated proxy appears as an array. How can I make the proxy use a collection type as well? I've talked in the past about how the representation of a type in metadata is decoupled from the
Posted by Nicholas Allen | 1 Comments
Monday, May 05, 2008 5:00 AM

Private Data Members

Why does a data contract with private or internal members generate a proxy with public fields? The obvious answer is that the representation for data contracts doesn't contain information about member visibility but that just leads to the question of
Posted by Nicholas Allen | 1 Comments
Wednesday, April 23, 2008 5:00 AM

Manual Context Management

How do I manually manage the context when sharing a client object? The default mode when using a context binding is for the context to be managed internally by the context channel underneath the client proxy. This is similar to how by default cookies
Posted by Nicholas Allen | 1 Comments
Tuesday, April 15, 2008 5:00 AM

One Shot Serialization

Why do some serialization errors when sending a response not result in a fault being returned to the client? In the typical service operation, sending a response is comprised of returning the appropriate information from the service method to construct
Posted by Nicholas Allen | 1 Comments
Friday, April 11, 2008 5:00 AM

Passing Around Endpoints

Can I construct a proxy object on one machine and pass it to another? No, there's no concept in WCF of sending a fully constructed proxy object from one place to another. Consider that there are two different things that "passing" a proxy object could
Posted by Nicholas Allen | 1 Comments
Thursday, March 20, 2008 5:00 AM

Single Reader for MSMQ

My application needs to process messages from a queue in-order but multiple messages are being read at once. How do I make the service only use a single reader? There are two modes that control how many requests a service can process at once. InstanceContextMode
Posted by Nicholas Allen | 1 Comments
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