使用WCF在Silverlight中共享服务接口和模型

Question

Say I have the following interface that I want to share between my server (a regular web service) and my client (a silverlight 2.0 application):

public interface ICustomerService
{
    Customer GetCustomer(string name);
}

My web service implements this interface, and references a class library where Customer type is defined.

Usually, if you want to consume this service from a WCF client, say a winforms app, you could share your model assembly and your service contract interfaces. Then, by using a ChannelFactory , you can dynamically create a proxy which implements your service interface. Something like:

ICustomerService myService = new ChannelFactory<ICustomerService>(myBinding, myEndpoint);
Customer customer = myService.GetCustomer("romain");

I basically want to do the same thing, but from a Silverlight 2.0 application. The silverlight ChannelFactory doesn't seems to act like the other one...

Do you know if it's possible ?

Note : Since a Silverlight application can only refers Silverlight projects, I have:

Two versions of MyModel.dll which contains Customer type:

• One compiled targetting .NET framework 3.5, referenced by my web service project
• Another compiled targetting the silverlight 2.0 framework, referenced by my silverlight app

Two versions of MyServicesContracts.dll which contains ICustomerService interface:

• One compiled targetting .NET framework 3.5, referenced by my web service project
• Another compiled targetting the silverlight 2.0 framework, referenced by my silverlight app

Answer 1

I think you will find this thread interesting. You can share code files between separate projects or compile a single project against multiple targets.

Answer 2

I know it's too late to provide a solution but it was my problem too and I found Portable Class Libraries . It's a perfect solution to your issue.

Answer 3

我可能是错的，但我认为如果您使用DataContract和DataMember属性装饰WCF服务返回的对象，您应该能够在Silverlight应用程序和WCF服务之间共享对象而无需在客户端中创建类（应该处理通过代理。

Answer 4

Very short...

You can have your proxies created under the silverlight application adding a service reference to your service. When you do this, you'll have your proxies automaticaly generated on the client.

Your wcf services interfaces must be anotated with DataContract and OperationContract attributes and the POCO classes used with this services must have DataContract and DataMember attributes.

http://msdn.microsoft.com/en-us/library/cc197940(VS.95).aspx