用Visual Studio.NET 2008实现Ajax+WCF Service交互

[ServiceContract(Namespace="")]
[AspNetCompatibilityRequirements(RequirementsMode=AspNetCompatibilityRequirementsMode.Allowed)]
public class DiscService
...{
// Add [WebGet] attribute to use HTTP GET
[OperationContract]
public void DoWork()
...{
// Add your operation implementation here
return;
}
    // Add more operations here and mark them with [OperationContract]
}

using System;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.ServiceModel.Activation;
using System.ServiceModel.Web;
using System.IO;
using System.Diagnostics;
using System.Collections.Generic;
[ServiceContract(Namespace="")]
[AspNetCompatibilityRequirements(RequirementsMode=
  AspNetCompatibilityRequirementsMode.Allowed)]
public class DiscService
...{
// Add [WebGet] attribute to use HTTP GET
[OperationContract]
public MyProcess[] GetProcess(string random)
...{
List myProcesses = new List();
Process[] processes = Process.GetProcesses();
foreach (Process process in processes)
...{
MyProcess mp = new MyProcess();
mp.ProcessName = process.ProcessName;
mp.Memory = process.VirtualMemorySize64;
mp.ThreadCount = process.Threads.Count;
myProcesses.Add(mp);
}
return myProcesses.ToArray();
}
    // Add more operations here and mark them with [OperationContract]
}
[DataContract]
public class MyProcess
...{
[DataMember]
public long Memory;
    [DataMember]
public int ThreadCount;
    [DataMember]
public string ProcessName;
}

<script type="text/javascript" src="ProcessService.svc/js"></script>
<script type="text/javascript" >...
function GetProcessList()
...{
ProcessService.GetProcess(Math.random().toString(), GetProcessSuccess, GetProcessFail,
 "");
}
function GetProcessSuccess(result)
...{
var div = document.getElementById("processlist");
for(var i=0;i<result.length;i++)
...{
var mp = document.createTextNode(result[i].ProcessName + " Thread:" + result[i].
ThreadCount + " memory:" + result[i].Memory); 
var newLine = document.createElement("br");
div.appendChild(mp);
div.appendChild(newLine);
}
}
function GetProcessFail(error)
...{
}
</script>
<input type="button" onclick="javascript:GetProcessList()" value="refresh" />
<div id="processlist"></div>