经常看到有人在网上问,如何使用WebService中使用ArrayList.其实这是因为没有好好看MSDN的原因.

ArrayList 是一个线性列表对象(它还是有点意思的.),不过WebService不支持其,不是标准变量对象,如果要有WebService中使用得加上属性.  [XmlRoot("根元名")]

例:

______________________序列化的类 YouClass.cs

using System;
using System.Xml.Serialization;

namespace SomeNS

{
 [Serializable]
 [XmlRoot("NewYouClass")]     //该属性需要加上 xml根元的序列化
 public class YouSerializabledClass
 {
  private long m_lID;

   public YouSerializabledClass()
  {
  }
  public long lID
  {
   get
   {
    return m_lID;
   }
   set
   {
    m_lID=value;
   }
  }

}

______________________________操作YouClass的类 A.cs

[XmlInclude(typeof(YouSerializabledClass))]
  public YouSerializabledClass YouSerializabledClassOperation(Some Var)
  {
    YouSerializabledClass.lID=Convert.ToInt64(Var);
     return YouSerializabledClass;
  }

_______________________ WebMethod

[WebMethod]
  [XmlInclude(typeof(YouSerializabledClass))]
  public  YouSerializabledClass YouWebMetho(SomeVar Var)
  {
   YouSerializabledClass YouSerializabledClass1=A.YouSerializabledClassOperation(Var);
   return YouSerializabledClass ;
  } 这样完了之后,将在客户端产生序列化类的影射.

_________________________________客户端的Reference.cs

//------------------------------------------------------------------------------
// <autogenerated>
//     This code was generated by a tool.
//     Runtime Version: 1.1.4322.573
//
//     Changes to this file may cause incorrect behavior and will be lost if
//     the code is regenerated.
// </autogenerated>
//------------------------------------------------------------------------------

//
// 此源代码是由 Microsoft.VSDesigner 1.1.4322.573 版自动生成。
//
namespace SomeNS.SomeNSReference {
    using System.Diagnostics;
    using System.Xml.Serialization;
    using System;
    using System.Web.Services.Protocols;
    using System.ComponentModel;
    using System.Web.Services;
    
    
  [System.Web.Services.Protocols.SoapDocumentMethodAttribute("http://tempuri.org/BeginYouWebMetho",RequestNamespace="http://tempuri.org/",ResponseNamespace="http://tempuri.org/",Use=System.Web.Services.Description.SoapBindingUse.Literal,ParameterStyle=System.Web.Services.Protocols.SoapParameterStyle.Wrapped)]
        [return: System.Xml.Serialization.XmlElementAttribute("NewYouClass",IsNullable=true)]
        public YouSerializabledClass YouWebMetho(string EPID) {
            object[] results = this.Invoke("YouWebMetho",new object[] {
                        EPID});
            return ((YouSerializabledClass )(results[0]));
        }
       
        /// <remarks/>
        public System.IAsyncResult BeginYouWebMetho(SomeVar Var,System.AsyncCallback callback,object asyncState) {
            return this.BeginInvoke("BeginYouWebMetho",new object[] {
                        Var},callback,asyncState);
        }
       
        /// <remarks/>
        public YouSerializabledClass EndGetYouWebMetho(System.IAsyncResult asyncResult) {
            object[] results = this.EndInvoke(asyncResult);
            return ((YouSerializabledClass )(results[0]));
        }

                     
        /// <remarks/>
    [System.Xml.Serialization.XmlTypeAttribute(Namespace="http://tempuri.org/")]
    public class YouSerializabledClass {                /// <remarks/>        public long lID;       } 这就是你产生的序列化类.       }