Convert/Migrate Web Service to WCF service

Step 1: Create an empty Web Application

Step 2:  Add new Web Service in this project

Now we can see the dummy code that is generated by Web Service default Template.

Here we have a WebService class inherited from System.Web.Services.WebService. Class also have  a web method “HelloWorld” that returns “Hello World” string.

Step 3: Add reference of System.ServiceModel in your project.

Step 4: Add “ServiceContract” and “OperationContract” on class and method, and add

using System.ServiceModel; on the top of the code

Step 5: Add WCFService in same project.

Step 6: Remove WCF Service interface “IWCFService” and Class “WCFService.svc.cs” files.

Step 7: Right click on .svc and .asmx file and Go to view Markup.

.svc markup view:

< %@ ServiceHost Language="C#" Debug="true" Service="ConvertWebServiceToWCFService.WCFService" CodeBehind="WCFService.svc.cs" %>

.asmx markup view:

< %@ WebService Language="C#" CodeBehind="WebService.asmx.cs" Class="ConvertWebServiceToWCFService.WebService" %>

Step 8: Change .svc and .asmx markup as below


.svc markup view:

< %@ ServiceHost Language="C#" Service="ConvertWebServiceToWCFService.WCFService" %>

.asmx markup view:

< %@ ServiceHost Language="C#" Service="ConvertWebServiceToWCFService.WebService" %>

Step 9: Changes in Web.Config file. Open config file.

Add below settings under tag.

< compilation debug="true" targetFramework="4.0">

< buildProviders>

< remove extension=".asmx"/>

< add extension=".asmx" type="System.ServiceModel.Activation.ServiceBuildProvider, System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />

< /buildProviders>

< /compilation>

< httpHandlers>

< remove path=".asmx" verb="*" />

< add path="*.asmx" verb="*" type="System.ServiceModel.Activation.HttpHandler, System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" validate="false" />

< /httpHandlers>




Add this also in web.config file of service.

< system.serviceModel>


< services>

< service name="MyService" behaviorConfiguration="MyServiceTypeBehaviors">

< endpoint contract="ConvertWebServiceToWCFService.WebService" binding="mexHttpBinding" address="mex" />

< /service>

< /services>

< behaviors>

< serviceBehaviors>

< behavior name="MyServiceTypeBehaviors">

< serviceMetadata httpGetEnabled="true" />

< serviceDebug includeExceptionDetailInFaults="true" />

< /behavior>

< behavior name="">

< serviceMetadata httpGetEnabled="true" />

< serviceDebug includeExceptionDetailInFaults="false" />

< /behavior>

< /serviceBehaviors>

< /behaviors>

< serviceHostingEnvironment multipleSiteBindingsEnabled="true" />

< /system.serviceModel>

Step 10: Finally you can see Conversion is working fine: