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  • WCF and streaming requests and responses

    - by Cheeso
    Is it correct that in WCF, I cannot have a service write to a stream that is received by the client? My understanding is that streaming is supported in WCF for requests, responses, or both. Is it true that in all cases, the receiver of the stream must invoke Read ? I would like to support a scenario where the receiver of the stream can Write on it. Is this supported? Let me show it this way. The simplest example of Streaming in WCF is the service returning a FileStream to a client. This is a streamed response. The server code is like this: [ServiceContract] public interface IStreamService { [OperationContract] Stream GetData(string fileName); } public class StreamService : IStreamService { public Stream GetData(string filename) { FileStream fs = new FileStream(filename, FileMode.Open) return fs; } } And the client code is like this: StreamDemo.StreamServiceClient client = new WcfStreamDemoClient.StreamDemo.StreamServiceClient(); Stream str = client.GetData(@"c:\path\to\myfile.dat"); do { b = str.ReadByte(); //read next byte from stream ... } while (b != -1); (example taken from http://blog.joachim.at/?p=33) Clear, right? The server returns the Stream to the client, and the client invokes Read on it. Is it possible for the client to provide a Stream, and the server to invoke Write on it? In other words, rather than a pull model - where the client pulls data from the server - it is a push model, where the client provides the "sink" stream and the server writes into it. Is this possible in WCF, and if so, how? What are the config settings required for the binding, interface, etc? The analogy is the Response.OutputStream from an ASP.NET request. In ASPNET, any page can invoke Write on the output stream, and the content is received by the client. Can I do something similar in WCF? Thanks.

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  • WCF Advanced Books

    - by hgulyan
    Hi, I've read all questions like mine and found a few good links. My question is about architect of WCF, how it is designed, how is generated reference.vb, wsdl and xsd files. How can I do that manually, some good examples of WCF Systems (mostly on desktop applications over TCP). I'd like a book or documentation or anything else, that can give me advanced knowledge of WCF. What do you think of this book http://www.amazon.com/Professional-WCF-Windows-Communication-Foundation/dp/0470563141/ref=sr_1_5?ie=UTF8&s=books&qid=1269425390&sr=8-5 ? And generally is there any source that would give me this all or the only way is practising, trying, looking in all that generated files and reading documentations? Thank you.

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  • asp.net mvc should calls wcf

    - by niao
    Greetings, I have a wcf service that exposes functionality to my wpf application. This works fine. I would like to create a web version and I am wondering how can I connect from my asp.net mvc application to my wcf service? Should I use the same approach as for WPF application (which uses Proxy to connect to the WCF Service. Is there any nice article how can i do this?

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  • Hosting WCF on IIS5/6

    - by Pinu
    I have developed a Web service using WCF Service Application. This service application is a part of multiple projects. we have data access , services(business logic) , testing(to test class) and WCF Service application.Where WCF Service application is just like an infterface and all the request are sent to the services project. so all the projects communicate with each other. I am new to hosting WCF application. Now to host this on IIS do i have to put the whole project in the IIS virtual directory?

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  • WCF Service Library Reference in a Web Form (asp.net)

    - by Abu Hamzah
    i am not sure if this is the correct way of doing but i read that you not suppose to have a WCF Service Library reference in your web form project rather you add endpoints to your web.config, is that true? here is what i have done: 1) create a WCF service library project 2) create a simple service called "MyService.svc" WebForm: 1) Create a web project 2) create a WCF Service and in it i have this code <%@ ServiceHost Language="C#" Service="WCFJQuery.ContactBLL.Implementation.ContactUs" Factory="System.ServiceModel.Activation.WebScriptServiceHostFactory" %> 3) right click on the web proejct and "Add Reference" and add teh MyService.dll reference from WCF service library project. is this something how you suppose to do?

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  • WCF service and COM interop callback

    - by Sjblack
    I have a COM object that creates an instance of a WCF service and passes a handle to itself as a callback. The com object is marked/initialized as MTA. The problem being every instance of the WCF service that makes a call to the callback occurs on the same thread so they are being processed one at a time which is causing session timeouts under a heavy load. The WCF service is session based not sure if that makes any difference.

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  • How to use Client Application Services with WCF?

    - by Adabada
    Howdy, I followed these two tutorial to get Client Application services working using WCF instead of the traditional web services project: http://msdn.microsoft.com/en-us/library/bb398990.aspx http://msdn.microsoft.com/en-us/library/bb546195.aspx But when configuring the winforms project services tab with the wcf services location, the generated code in app.config points to a "Authentication_JSON_AppService.axd" service uri that doesn't exist. How can I use Client Application Services using WCF as the "transport" and still use the services tab to configure the settings on the client windows application? Thanks

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  • Custom description page for the WCF endpoint?

    - by Joannes Vermorel
    I am migrating an ASP.NET Web Service toward WCF. The old Web Service endpoint had a nice extensive description page generated from the comment of the underlying class exposed as a service endpoint. In particular, all available web methods were listed. Is there a way to emulate somehow this behavior with WCF? At least, how can I customize the HTML content of the WCF endpoint?

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  • WCF client throws SocketException if I'm also running a Fiddler

    - by user437291
    Hi I'm trying to use Fiddler2 to inspect SOAP messages exchanged between WCF client and WCF service ( both client and service are running on same machine). But problem is, whenever I use Fiddler2, WCF client reports "EndpointnotFoundException:There was no endpoint listening at http://a-PC:8100 that could accept the message à System.Net.WebException: Unable to connect to the remote server - à System.Net.Sockets-SocketException:An attempt was made to access a socket in a way forbidden by its access permissions 127.0.0.1:8888" Thank you

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  • Calling a WCF from ASP.NET with same the single-signon user LogonUserIdentity

    - by Dennis Cheung
    I have a ASP.NET MVC page, which call WCF logic. The system is single-signon using NTML. Both the ASP page and the WCF will use the UserIdentity to get user login information. Other then NTML, I will also have a Form based authorization (with AD) in same system. The ASP page, is it simple and I can have it from HttpContext.Current.Request.LogonUserIdentity. However, it seem it is missing from the WCF which call by the ASP, not from browser. How to configure to pass the ID pass from the ASP to the WCF?

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  • WCF port routing

    - by C james
    I have NAT which received incoming WCF requests and changes port number before it hands off to the host however, this is causing problem is there anyway to turn this off or fix? ex) wcf.service.com:80 - NAT - wcf.service.2522 !error Thank you.

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  • WCF RIA Services and RFC calls

    - by Kottan
    I want (have) to write a Silverlight and (or) ASP.NET based webapplication with SAP in the backend (the usage of Silverlight and ASP.NET is a precondition) Is it possible to use the WCF RIA Services (and Silverlight) where the data-source are RFCs from SAP ? Makes this sense ? If yes, how the pattern/architecture could be shortly described ? Or should I take other architectures into considerations (usage of plan WCF services, WCF data services,...) ?

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  • WCF data service hosting in Windows Form

    - by user158598
    Hi, I want to host a WCF Data Service (formerly known as ADO.NET data Service) in windows form.Is it possible? If yes,then is there any blog, which talks about it? I know WCF can be hosted in Windows Form, but I am not sure about WCF data service, as all the examples I see, is asking to create ASP.NET web project. -Brajesh

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  • Custom membership provider via WCF authorization question

    - by Diego
    I've made a global authentication via WCF to use with the most of our systems, but found that load data via WCF not very so fast. What I need to do now is verify every time that the page is loading if the user has access granted to that page.... Its a good pratice to go back in WCF request this info for every page that the user access?This will not slow down my entire system?

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  • Letting Wcf data service implement another contract

    - by Wasim
    Hi all , I have a wcf data service with the standart configuration . I want to add another functionality to it , so I built a contract interface and let my wcf data service implements it . Now I see in the service the InitializeService method , and the contract interface methods . When I come to connect the service , I get an error , that there is no end point declared to the contract I added . How can do that ? examples ? links ? I choosed to add the contract interface to the wcf data service and not adding another service , because the client application uses the wcf data service generated objects , and I want to use the same obkject to make operations not related to data , for more coplex processing . If I do the methods in another service , then I have types incompatibility . Thanks in advance ...

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  • How to share asp.net Session into WCF service

    - by Throjen
    Im using asp.net website with WCF service, having wsHttpBinding,Aspnet compatibility enabled, specified as Sessionmode -allowed, service behavior- isinitiated and client session cookie enabled. Its looking like Asp.Net session object and WCF Session( HTTPContext.Current.Session) work independently. How can I share Asp.net Session value to WCF Session and vise versa.

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  • calling a wcf/soap method as an http get

    - by gleasonomicon
    Is there any way to enforce that a method call in soap based wcf is called as an HTTP get? I'm not sure if this would be handled on the client or server side. We wanted to have the wcf call process as a get vs. post for cacheability, etc. I'm also not sure how to monitor a wcf service to determine if calls are doing gets or posts (or if it always does one or the other). Can I use fiddler for this? I would imagine I could use a restful wcf service to wrap the call, but I wasn't sure if there was a way to do it straight in a soap based service.

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  • C# and WCF + Getting the location of execution

    - by user208662
    Hello, I have a WCF service that is responsible for writing a log file. I would like to write a log file relative to the location of my WCF service. This service does NOT have an HttpContext available. Because of this, I cannot use HttpContext.Current.Server.MapPath. How can I get the location of where my WCF service is running so that I can create a log file? Thank you

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  • Can phper give me some code snippet to consume the .net wcf service

    - by Vincent
    Hi, I can successfully make a call to wcf from php without WCF message security enabled. I search the whole forum and cannot find any clue. I'd like to know how can I pass the credential ? My WCF service use the basichttpbinding on SSL with Message security enabled. Here is my code snippet to call my wcf from .NET ServiceReference1.TestClient sc = new TestClient(); sc.ClientCredentials.UserName.UserName = "[email protected]"; sc.ClientCredentials.UserName.Password = "ABC123"; Console.WriteLine(sc.GetProfiledSchemas(412));

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  • Ways to make your WCF services compatible with non-.NET consumers

    - by Mayo
    I'm working on adding a WCF services layer to my existing .NET application. This layer will be hosted in IIS and will be consumed by a variety of UIs, at least one of which will not use Microsoft technologies. I can make a Web service in WCF that is consumed by my .NET application. However, I'm concerned about things that work in the .NET world but not with other technologies. For example, simply throwing an exception from my WCF service works fine in .NET. But according to this article, one should approach exception handling with fault contracts to ensure compatibility with non-.NET consumers. The author labels this lack of foresight as The Fallacy of the .NET-Only World. Does anyone have any high level suggestions or links to articles that cover interoperability between WCF and non-.NET consumers? I realize I'm potentially working against the YAGNI principle. I'm only really looking to avoid things that will be incredibly difficult to overcome later when the developers of the non-.NET consumer report problems to me.

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  • Using WCF to expose underlying process

    - by Steven
    I have a server application that spins up and monitors about 8 separate processes that gather data from different systems. The server app then runs some calculations over the aggregated data and stores it in a db. Simple stuff. I now have a requirement to modify the process so that it no longer saves data to the db but rather exposes it directly to clients via WCF. That's cool, I've used WCF a fair bit but I'm struggling a little with it for some reason. Basically my plan is to HOST the WCF service in my application and have calls redirect into the internals of my existing application but I can figure out how to do that without getting the WCF class to encapsulate the existing app. I want the service to inside my current app, not become it. Any suggestions?

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  • WCF proxy: Do I need to create a new and different proxy for each binding?

    - by WCFDeveloper
    Hi, Let's say that I have created a WCF proxy from a WCF service (which is configured with wsHttpBinding) using Add Service (in Visual Studio 2008). Later I want to use basicHttpBinding so I'll go and change the WCF service to use basicHttpBinding. But what about the WCF proxy? Can I just change this via Web.config or do I need to create the WCF proxy again from the WCF service via Add Service? Thanks

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