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• How to secure WCF service with public private ket pair without using any certificated

  - by malik

  I want to secure my wcf service. For example if i want to generate public private key pair without involving any third part certifation authority. What is the way and method to do it? Any idea or any other approach.

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• Why limit WCF ServiceContracts to 10-20 OperationContracts?

  - by Gary B

  I've seen recommendations (Juval Lowy, et al) that a service contract should have "no more than 20 members...twelve is probably the practical limit". Why? It seems that if you wish to provide a service as the interface to a relatively large db (50-100 tables) you're going to go way past that in just CRUD alone. I've worked with plenty of other services that provided hundreds of 'OperationContracts'...is there something peculiar about WCF? Is there something I'm missing here?

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• WCF service is not responding

  - by Costa

  Hi A Flash program is connecting to WCF web service hosted on a server without anti-virus and without firewall and windows server 2003 64 bit environment. The flash return Connection failed message When I sniffer it I found that the Flash program cannot find these requests, http://IP:2805/BLL.svc?xsd=xsd1 http://IP:2805/BLL.svc?xsd=xsd0 The strange thing is that the service work fine with asp.net. also the same service deployed on another server, just work fine!! Is there a work around. Thanks

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• How to swap WCF deserializer from configuration

  - by JohnIdol

  I have a problem with WCF deserialization where the client hangs on the response for more than a minute. I'd like to try to swap different deserializers and see if it affects the behavior. Can I swap in/out DataContract/Xml serializers (are there any others?) from configuration, and if so can I do that with any binding? Any help appreciated!

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• See what XML is being serialized down the wire for a WCF Service

  - by Burt

  I have a WCF service that I pass a lit of objects down from the server to the client, what I would like to do is to know what exactly is getting passed down to the client. How can I see the unecrypted serialized payload that is sent over the wire?

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• wcf message size causing permission issue

  - by Ferrell Carr

  silverlight 3.0 client wcf 3.0 VS.Net 2005 Web Site Win 2003 Server 50 column observable collection. return observable collection select top 975 * ... no problem return observable collection select * .... Issue On SL client after proxy.Get 50 col OC logon screen from win 2003 server pops up Mever makes it to the completed event.

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• WCF wrapper COM object

  - by LarryR

  I have a third party COM component (they don't offer a .Net assy), that has the additional feature that it only works under x86 compile. I am trying to wrap this in a WCF service, but if I select x86, the service won't start (System.BadImageFormatException). Any workarounds for this ? Thanks Larry

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• WCF Service doesnt run on IIS!

  - by Jayesh

  Hi, I have a WCF service hosted at local IIS. I created a ASP.NET website that consumes this service hosted at IIS. While running it from Visual Studio WebDev Server, everything works fine, but as soon as i run the same website [after hosting in IIS] from the browser, the website doesnt seem to be communicating with the Service! The same setup when runs from Visual Studio WebDev Server, doesnt function from IIS! Any know isues? Please help! Thanks

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• Client configuration to consume WCF JSON web service

  - by Grzenio

  Hi, I have configured the web service to use Json as described on this blog: http://www.west-wind.com/weblog/posts/164419.aspx and various other blogs, but I couldn't create a client to consume this service. I tried various things, but invariably I got meaningless exceptions. What is the correct way to implement the (WCF I should add) client?

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• Http Post Format for WCF Restful Service

  - by nextgenneo

  Hey, super newbie question. Consider the following WCF function: [ServiceContract] [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)] [ServiceBehavior(InstanceContextMode = InstanceContextMode.PerCall)] public class Service1 { private static NLog.Logger logger = NLog.LogManager.GetCurrentClassLogger(); [WebInvoke(UriTemplate = "", Method = "POST", ResponseFormat = WebMessageFormat.Json, RequestFormat = WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.Bare) ] public SomeObject DoPost(string someText) { ... return someObject; In fiddler what would my request headers and body look like? Thanks for the help.

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• Can I swap WCF deserializer from configuration?

  - by JohnIdol

  I have a problem with WCF deserialization where the client hangs on the response for more than a minute. I'd like to try to swap different deserializers and see if it affects the behavior. Can I swap in/out different serializers (are there any others?) from configuration, and if so can I do that with any binding, or is that out of control once the service reference is imported? Any help appreciated!

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• How to precompile WCF code and then host it on IIS ?

  - by Attilah

  How do you precompile WCF code so that the WCF code can't be seen by anyone who has access to the WCF code. it's possible to this with ASP.NET code by using the "precompilation" feature. basically, what the precompilation feature does is enable the developper to deploy "binaries" to IIS instead of a folder containing source code. can this be done with WCF too ?

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• testing wcf service in browser

  - by pankaj

  How can i test a wcf service in a browser? I mean if i only enter the url in the browser it should give me only relevent xml

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• wcf - .net 3.5 client and .net 4.0 routing service

  - by Chen Kinnrot

  is it possible for a .net 3.5 application to communicate smoothly with .net 4.0 routing wcf service? should i get in to any problems when trying to perform this operation? can i work with the simple channel factory?

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• Invokation of Target Service Failed WCF Invokation Using Biztalk

  - by azamsharp

  we are having this error on our production. When the biztalk invokes the WCF service it gets the following error: Invokation of Target Service Failed I invoke the production service using my console application and it works fine. Any ideas?

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• Sharing common class in wcf project

  - by Saint

  class MyCommonClass { //properties } This class should be accessible in service project wcf-client project the other for which they are references. In this common project I can't generate servicereferences. I think, I could don't generate MyCommonClass in ServiceReferences but how to mark class to be nonserializable? In properties there's IgnoreDataMemberAttribute. I tried also reuse MyCommonClass type located in common project, but it is still generated

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• WCF Custom Binding help

  - by Bram

  I'm a newb to WCF bindings and would appreciate any help making a custom binding that: Supports Binary Message encoding. Uses Transport Security (clientCredentialType="None"). Thanks for any help.

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• Passing a Dictionary to WCF service

  - by Sandeep

  I need to pass a Dictionary (with max 20,000 entries) to a WCF service. Can I pass it all by once? void SubmitDictionary(Dictionary<string, MyEntry> val); where MyEntry is : class MyEntry { string Name; long Age; } Is there a configuration for size of the value passed? or can we pass as large data as this?

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• How to get configuration for WCF Service

  - by klashar

  I want to check whether the endpoint is defined in the configuration before I'll try to create it System.ServiceModel.ClientBase<T> sourceClient = new System.ServiceModel.ClientBase<T>(EndpointName, new EndpointAddress(discoveryUri)); To check it I need get a configuration but how can I define whether I need to use WebConfigurationManager or ConfigurationManager. Is there any way to define where a WCF service is hosted?

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• WCF Dataservices and OData

  - by rkrauter

  Could someone please explain the difference? From what I understand, I could expose my data directly using WCF data services or expose it using OData. http://msdn.microsoft.com/en-us/data/aa937697.aspx

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• WCF Operation contract availability

  - by nettguy

  This question was asked at interview. Say I have a contract. [ServiceContract] public interface IMyService { [OperationContract] void methodForClientA(); [OperationContract] void AnothermethodForClientA(); [OperationContract] void methodForClientB(); [OperationContract] void AnothermethodForClientB(); } When a clientA access the contract it should only see the operation contracts void methodForClientA(),void AnothermethodForClientA(). Is it possible in WCF ?

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• Using msmq and wcf

  - by ltech

  I had posted this question earlier past ? Started reading up on wcf and msmq. My first question would be - say ii have a 100 messages in the Q , how would i tell my service to start working on each message asynchronously so that it is working on multiple messages at the same time. is this even possible or is it always a synchronous operation?

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• WCF MSMQ consumer thread count

  - by Andy White

  What's the best way to configure the maximum number of threads that can pull messages from an MSMQ queue, using a netMsmqBinding in WCF? For example, say I have an MSMQ service for which I only want to have 2 (or 10, or whatever number of) worker threads pulling messages off at a time.

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• WCF - StructureMap - Caching objects for the duration of the request only

  - by Maxim

  So I already have a working implementation of StructureMap with the WCF service (including custom instance provider, behaviors, etc.) When I try to have an object that is instantiated only once per user request, I use the InstanceScope.HttpContext and it throws because the context is null. Do anyone have a proper way of doing that?

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• .Net 3.5 Windows Service hide WCF Service Host

  - by Melursus

  I got a Windows service installed on my development machine (that I made) and I want to interact with it. For a reason I don't know, each time I start the client, a WCF Service Host pop and said that the address is already in use ... which is true ... but how can I do to NOT start that Windows ? Is it because my two projects (server and client) are in the same solution ?

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