操作步骤：
1。新建一个WebApplication项目，取默认设置。
2。双击设计界面，进入后天代码编辑界面，代码如下：
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | using System; using System.Web.Services; namespace WebApplication1 { public partial class _Default : System.Web.UI.Page { protected void Page_Load( object sender, EventArgs e) { } [WebMethod] public static string TestFunc1() { return "This is the returns of behind code function one" ; } [WebMethod] public static string TestFunc2( string str) { return "This is the returns of behind code function two!You give me the string :" +str; } } } |
3。准备好PageMethods后，编辑Default.aspx文件。代码如下：
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication1._Default" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" ""> < html xmlns = "" > < head runat = "server" > < title >JS调用后台PageMethods</ title > < script type = "text/javascript" language = "javascript" > function TheJSTestfunc1() { PageMethods.TestFunc1(onsuccess); } function TheJSTestfunc2() { var txt=document.getElementById('Text1').value; PageMethods.TestFunc2(txt,onsuccess); } function onsuccess(value) { document.getElementById('divResult').innerHTML=value; } </ script > </ head > < body > < form id = "form1" runat = "server" > < asp:ScriptManager ID = "ScriptManager1" runat = "server" EnablePageMethods = "true" > </ asp:ScriptManager > < div > < input id = "Button1" type = "button" value = "button" onclick = "TheJSTestfunc1()" /> < hr /> < input id = "Text1" type = "text" />< input id = "Button2" type = "button" value = "button" onclick = "TheJSTestfunc2()" /> < hr /> The returns :< div id = "divResult" ></ div > </ div > </ form > </ body > </ html > |
操作说明：
其实与我的另一篇随笔[]里面提到的相似。
1.页面中需要添加ScriptManager组件，然后将它的EnablePageMethods属性设置为True。
2.编写页面方法时也要向调用WebService一样，在方法前加[WebMethod]，调用WebService与PageMethods其实是同出一辙,原理都是一样的。