zoukankan html css js c++ java

ASP.NET中前台调用后台的方法

学习文章:http://www.cnblogs.com/kingteach/archive/2010/11/12/1875633.html

练习代码:

前台:

 1 <html xmlns="http://www.w3.org/1999/xhtml">
 2 <head runat="server">
 3     <title></title>
 4     <script src="Scripts/jquery-1.4.1.min.js" type="text/javascript"></script>
 5     <script language="javascript" type="text/javascript">
 6         $(document).ready(function () {
 7         });
 8 
 9         function CheckUnitNameExist() {
10             var name = $("#TextBox1").get(0).value;
11             PageMethods.CheckName(name, jsFunc);
12         }
13         function jsFunc(result) {
14             alert(result);
15         }
16     </script>
17 </head>
18 <body >
19 
20     <form id="form1" runat="server">
21      <asp:ScriptManager ID="ScriptManager1" runat="server"  EnablePageMethods="true">  </asp:ScriptManager>
22     <div>
23         请输入姓名:
24         <asp:TextBox ID="TextBox1"  runat="server" Width="200" onchange="CheckUnitNameExist()"></asp:TextBox>
25     </div>
26     </form>
27 </body>
28 </html>

View Code

后台:

 1 using System.Collections.Generic;
 2 using System.Linq;
 3 using System.Web;
 4 using System.Web.UI;
 5 using System.Web.UI.WebControls;
 6 using System.Web.Services;
 7 using System.Web.Script.Services;
 8 
 9 namespace htmltest
10 {
11     public partial class WebForm7 : System.Web.UI.Page
12     {
13         protected void Page_Load(object sender, EventArgs e)
14         {
15            
16         }
17 
18         [WebMethod]
19         public static string CheckName(string UnitName)
20         {
21             if (UnitName == "苏州")
22             {
23                 return "苏州的名字已存在!";
24             }
25             else
26             {
27                 return "可随意填写!";
28             }
29         }
30 
31     }
32 }

View Code

注意事项见学习文章.

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原文地址：https://www.cnblogs.com/hshuai/p/4224579.html