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Questions tagged [duplex]

A duplex communication system is a point-to-point system composed of two connected parties or devices that can communicate with one another in both directions, simultaneously.

A duplex communication system is a point-to-point system composed of two connected parties or devices that can communicate with one another in both directions, simultaneously. An example of a duplex device is a telephone.

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Duplex WCF service - Direct call and callback do not use same channel

My goal is to reach a WCF service behind a firewall with no incoming ports opened. The solution I chose is to host a duplex WCF service on the public side, that has as callback the same contract that was used if no firewall was involved. It worked…
Gicanu
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UserObject does not implement the CallbackContractType 'Client.MyService.IMyServiceCallback'

I am trying to implement a generic duplex connection using WCF in Visual Studio 2015, however, upon running my client application this error appears: The InstanceContext provided to the ChannelFactory contains a UserObject that does not implement…
user5389897
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How to handle WCF Duplex timeout?

I've been searching the web for the last two days, but by no means, I can get my WCF Duplex service working. I've created a demo project which can be download from skydrive: WCFDuplexDemo.zip For the purpose of minimizing the number of possible…
reinberger
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Duplex Printing in XML Publisher report (PDF)

I want to print terms and conditions on Back of odd pages in XML publisher report. I have made the changes in RTF and able to view the output but while printing I'm not getting the prints back to back. In printer setup inside Oracle Apps Printer->…
Pravin Hinge
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Updating the asp.net page from the asynchronous WCF duplex call - object scope - ASP.NET

I've the following doubt. I've a page "MyPage" and i've declared few dictionary objects in the page class. My doubt is If i declare the dictionary as a private non-static object i'm not able to use it across the functions in that page class (the…
NLV
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How to debug a WCF service connected with multiple clients - .NET

I've written a WCF service with a duplex contract which asynchronously calls back the clients. I have some issues when multiple clients get connected and i dono how to debug the service. Any insights on this? Thank you. NLV
NLV
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custom code to run on server on every silverlight poll. (polling duplex)

Is it possible to run custom code when the silverlight client polls everytime to the server to keep the connection alive. My application is a implementation of the comet style polling duplex communication which is available from silverlight3. I…
Tiju John
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How to use a duplex wcf service to distribute messages to all clients?

I am building a simple duplex wcf service. In this service clients send messages to the server and the server distributes the message to all connected clients. However, despite the fact that I defined the ServiceBehavior attribute…
user207809
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Airprint > High Resolution > Duplex possible

Coming from Android I am new to iOS development and need advice :-) In a current project I need to print variable content (product, map and cam-picture) in high resolution in duplex mode via airprint. The structure and layout (of the pages) is…
emte
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Ensuring that all callbacks were completed before sending a new request through a DuplexChannel using WCF

I am experiencing some issues when using a Callback in a WCF project. First, the server invokes some function Foo on the client which then forwards the request to a Windows Forms GUI: GUI CLASS delegate void DoForward(); public void ForwardToGui()…
Etan
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Python printing a pdf file on my Brother Laser printer (Duplex print on/off)

I want to write a python script that prints each file in a Folder on my laser Printer. There should be the possibility to Switch the Duplex print mode on and off. The decission is made by the file Name. If there is a D in front of the file Name it…
MisterX
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Can I programmatically control the 'Rotate 180 Degree checkbox' option in HP Printer Driver settings with VBA?

I'm trying to switch on and off the Rotate 180 degree setting for an HP Laserjet printer (4200/ 4350) using a duplexer unit. The Business has a requirement to "print on both sides", for maximum control I'd like to be able to manipulate at print time…
David Pike
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wcf service with callback fails, probably concurrency issue

I have a duplex wcf service. the client registers and then the server calls a callback. The callback takes as parameter a list of list of strings. as this can be very large, the list is divided in chunks and the callback is called several…
wollow
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WCF ignore duplex in webhttpbinding

Hi i have an service looks something like this. [ServiceBehavior(InstanceContextMode = InstanceContextMode.PerCall, ConcurrencyMode = ConcurrencyMode.Multiple, UseSynchronizationContext = false)] public class Service : IService { public string…
Dendei
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WSDualHttpBinding wont work on some computers

I have an wcf that uses an wsdusalhttpbinding WSDualHttpBinding binding = new WSDualHttpBinding(); binding.MaxBufferPoolSize = int.MaxValue; binding.MaxReceivedMessageSize = int.MaxValue; binding.Security.Mode =…
Dendei
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