用js取得返回的DataTable类型时，报错：A circular reference was detected while serializing an object of type 'System.Reflection.Module'解决方法 _Web Service

用js取得返回的DataTable类型时，报错：A circular reference was detected while serializing an object of type 'System.Reflection.Module'
创建了一个WebService，返回一个DataTable，代码如下：

C# code

    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [ToolboxItem(false)]
    [ScriptService]
    public class Service1 : System.Web.Services.WebService
    {
        [WebMethod]
        public DataTable GetData()
        {
            DataTable dt = new DataTable("testDT");
            dt.Columns.Add(new DataColumn("col1", typeof(int)));
            dt.Rows.Add(new object[] { 1 });
            return dt;
        }
    }

前台代码：

JScript code

function btnClick(){
    Service1.GetData(HandleStateChange,err);
}        
function HandleStateChange(result){
    alert(result);
    assa
}
function err(result){
    alert("Error:" + result._message );
}

一点击就报错：A circular reference was detected while serializing an object of type 'System.Reflection.Module'

但是直接进入asmx，调试，没有问题，难道说ASP.Net2.0没有解决DataTable在js上的序列化问题吗？

------解决方案--------------------
up
------解决方案--------------------
http://www.cnblogs.com/yinix/articles/767311.html