handling faults in WCF

Specifying and handling faults in WCF

ms-help://MS.MSSDK.1033/MS.NETFX30SDK.1033/WCF_con/html/a9696563-d404-4905-942d-1e0834c26dea.htm 

---

In this article,  it is discussed  how and when to convert DotNet exceptions to WCF faults and sent them to the clients. The folowing main contents included:

Error handling overviewDefining and specifying faults

---

 

namespace  Microsoft.WCF.Documentation{  [ServiceContract(Namespace = " http://microsoft.wcf.documentation " )]   public   interface  ISampleService{    [OperationContract]    [FaultContractAttribute(       typeof (GreetingFault),      Action = " http://www.contoso.com/GreetingFault " ,      ProtectionLevel = ProtectionLevel.EncryptAndSign      )]     string  SampleMethod( string  msg);  }   [DataContractAttribute]   public   class  GreetingFault  {      private   string  report;     public  GreetingFault( string  message)    {       this .report  =  message;    }    [DataMemberAttribute]     public   string  Message    {       get  {  return   this .report; }       set  {  this .report  =  value; }    }  }   class  SampleService : ISampleService  {   #region  ISampleService Members    public   string   SampleMethod( string  msg)  {    Console.WriteLine( " Client said:  "   +  msg);     //  Generate intermittent error behavior.     Random rand  =   new  Random(DateTime.Now.Millisecond);     int  test  =  rand.Next( 5 );     if  (test  %   2   !=   0 )       return   " The service greets you:  "   +  msg;      else        throw   new  FaultException < GreetingFault > ( new  GreetingFault( " A Greeting error occurred. You said:  "   +  msg));  }   #endregion   }}