客戶端代理的作用
?在對象里做了一個標記
–“__type” = “ComplexType.Color”
?服務器端根據標記選擇反序列化的目標類型
?可出現“多態”效果

aspx
????<form?id="form1"?runat="server">
????????<asp:ScriptManager?ID="ScriptManager1"?runat="server">
????????????<Services>
????????????????<asp:ServiceReference?Path="EmployeeService.asmx"?InlineScript="true"?/>
????????????</Services>
????????</asp:ScriptManager>
????????
????????<div>Years:<input?type="text"?id="txtYears"?/></div>
????????<div>
????????????Status:
????????????<select?id="comboStatus"?style="width:150px;">
????????????????<option?value="ComplexType.Intern">Intern</option>
????????????????<option?value="ComplexType.Vendor">Vendor</option>
????????????????<option?value="ComplexType.FulltimeEmployee">FTE</option>
????????????</select>
????????</div>
????????
????????<input?type="button"?onclick="calculateSalary()"?value="Calculate!"?/>
????????
????????<br?/>
????????<b>Result:</b>
????????<div?id="result"></div>
????????
????????<script?language="javascript"?type="text/javascript">
????????????function?calculateSalary()
????????????{
????????????????var?emp?=?new?Object();
????????????????emp.__type?=?$get("comboStatus").value;
????????????????
????????????????emp.Years?=?parseInt($get("txtYears").value,?10);
????????????????
????????????????EmployeeService.CalculateSalary(emp,?onSucceeded);
????????????}
????????????????
????????????function?onSucceeded(result)
????????????{
????????????????$get("result").innerHTML?=?result;
????????????}
????????</script>
????</form> 定義一個emp的Object對象，指定“__type”（何種類型對象，是要轉換成相應的服務器端的類型的）的值，兩個下劃線“_”加上“type”

Employees.cs
using?System;
using?System.Data;
using?System.Configuration;
using?System.Web;
using?System.Web.Security;
using?System.Web.UI;
using?System.Web.UI.WebControls;
using?System.Web.UI.WebControls.WebParts;
using?System.Web.UI.HtmlControls;

namespace?ComplexType
{
????public?abstract?class?Employee
????{
????????private?int?_Years;
????????public?int?Years
????????{
????????????get
????????????{
????????????????return?this._Years;
????????????}
????????????set
????????????{
????????????????this._Years?=?value;
????????????}
????????}

????????public?string?RealStatus
????????{
????????????get
????????????{
????????????????return?this.GetType().Name;
????????????}
????????}

????????public?abstract?int?CalculateSalary();
????}

????public?class?Intern?:?Employee
????{
????????public?override?int?CalculateSalary()
????????{
????????????return?2000;
????????}
????}

????public?class?Vendor?:?Employee
????{
????????public?override?int?CalculateSalary()
????????{
????????????return?5000?+?1000?*?(Years?-?1);
????????}
????}

????public?class?FulltimeEmployee?:?Employee
????{
????????public?override?int?CalculateSalary()
????????{
????????????return?15000?+?2000?*?(Years?-?1);
????????}
????}
} 這里的Employee類是一個抽象類，它必須被繼承才能過使用

EmployeeService.asmx
<%@?WebService?Language="C#"?Class="EmployeeService"?%>

using?System;
using?System.Web;
using?System.Collections;
using?System.Web.Services;
using?System.Web.Services.Protocols;
using?System.Web.Script.Services;
using?ComplexType;


///?<summary>
///?Summary?description?for?EmployeeService
///?</summary>
[WebService(Namespace?=?"http://tempuri.org/")]
[WebServiceBinding(ConformsTo?=?WsiProfiles.BasicProfile1_1)]
[ScriptService]
public?class?EmployeeService?:?System.Web.Services.WebService
{
????[WebMethod]
????[GenerateScriptType(typeof(Intern))]
????[GenerateScriptType(typeof(Vendor))]
????[GenerateScriptType(typeof(FulltimeEmployee))]
????public?string?CalculateSalary(Employee?employee)
????{
????????return?"I'm?"?+?employee.RealStatus?+
????????????",?my?salary?is?"?+?employee.CalculateSalary()?+?".";
????}
} 這里的CalculateSalary方法指定要生成的參數類型不是Employee而是繼承Employee的類的Intern、Vendor、FulltimeEmployee的子類，是因為Employee是抽象類，在傳入參數時只要傳入Intern、Vendor、FulltimeEmployee中的一種就可以了。

轉載于:https://www.cnblogs.com/timy/archive/2008/04/27/1173088.html

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