Create WCF Service without using Wizard

Introduction

Windows Communication Foundation (WCF) is an SDK for developing and deploying services on Windows.

WCF provides a runtime environment for services, enabling you to expose CLR types as services, and to consume other services as CLR types.

Service: the functionality exposed to the world

Client: consuming the functionality from the service.

Main Components

The Endpoint in WCF Is ABC

WCF supports following transport schemas

Contracts in WCF

Service Contract

- Service Contract (at class level)
- Operation Contract(at method level)
Data Contract

- Data contract (at class level)
- Data Member (at property level)
Fault Contract
Message Contract

Hosting of WCF

Implementation

STEPS FOR WCF IMPLEMENTATION

Server Side

Create a service contract
1. [ServiceContract (Namespace=http://.......)] (this is for an interface)
Create an Interface
1. Public interface Icalc
2. {
3. …
4. …
5. }
Declare an method of each operation with OperationContract attribute
1. [ServiceContract (Namespace=http://.......)]
2. Public interface Icalc
3. {
4. [OperationContract]
5. Int add(int n1,int n2);
6. [OperationContract]
7. Int Sub(int n1,int n2);
8. }
Create an another class which implements the interface
1. public class cal_op:ICalc
2. {
3. public int add(int a,int b)
4. {
5. return(a+b);
6. }
7. public int sub(int a,int b)
8. {
9. return(a-b);
10. }
11. }

In main program

Config. The address
1. Uri baseaddress=new uri(http://…..”);
Create a service host
1. ServiceHost selfhost=new ServiceHost(typeof(class_name),<object of uri >);
2. ServiceHost selfhost=new ServiceHost(typeof(cal_op),baseAddress);
Add service end point
1. Selfhost.AddServiceEndPoint(typeof(<interface name>),new WSHttpBinding(),”<service name>”);
2. Selfhost.AddServiceEndPoint(typeof(Icalc),new WSHttpBinding(),”calc_server”);
Hosting with Metadata
1. ServiceMetadataBehavior smb=new ServiceMetadataBehavior();
2. Smb.HttpGetEnabled=true;
3. Selfhost.Description.Behaviors.Add(smb);
Then open the host
1. <host_name>.open();
2. Selfhost.Open();
4. …
5. …
6. Selfhost.Close();

In VS2008 CMD

Add that file to client solution.

Client side

Create an end point by using tat obj: