The document provides steps for creating a simple WCF service and consuming it in a Windows Phone application. It involves creating a WCF service project with an interface and implementation class, configuring the web.config file, and adding a service reference in the phone app project to consume the WCF service. The phone app uses controls from the toolbox and makes calls to the WCF service's getter and setter methods.

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Objective
 Creating simple WCF Service
 Consuming WCF Service using Windows Phone application.
WCF SERVICE
STEP 1
First of all launch Visual Studio 2012. Click FILE->NEW->PROJECT. Create new "WCF Service
Application".
STEP 2
Once you create the project, you can see in solution that By Default WCF service and interface file are
already created. You should create file as we will create our own interface and WCF service file.
STEP 3
Now right click on solution and create one new WCF service file, and add two classes with your own
name, in my case I will name the interface IWin7MobileService.cs and the class that will implement the
interface Win7MobileService.svc.cs
STEP 4
IWin7MobileService.cs defines the interface of the WCF Service. It has two methods which are essentially
getter and setter methods.

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STEP 5
Win7MobileService.svc.cs is an implementation of the interface. The class contains a static data member and
the implementation of the methods of the interface.
STEP 6
Web.config file defines essentially the <service> and <serviceBehaviors>. In your implementation, modify
the <baseAddresses> tag with the IP address of the machine

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Consume WCF using Windows Phone application
STEP 1
Create a new Windows Phone Application. Here, we will not modify manually any XAML code but will
make use of toolbox for controls. As shown below, I’ve made use
of TextBlock, TextBox and Button controls from toolbox.

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STEP 2
In order to consume deployed WCF Service, right click the project and select Add Service Reference. Enter
the address of the WCF Service (i.e. http://{IP
Address}/wcfserviceforwinmobile/win7mobileservice.svc?wsdl).
This will create ServiceReferences.ClientConfig file in the project. Now you can use WCF Service in your
Client application.

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STEP 3
The following is the MainPage.xaml.cs code:

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