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