ASP.NET中前台调用后台的方法

时间：2022-03-08 07:13:52

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

练习代码:

前台:

 <html xmlns="http://www.w3.org/1999/xhtml">

 <head runat="server">

     <title></title>

     <script src="Scripts/jquery-1.4.1.min.js" type="text/javascript"></script>

     <script language="javascript" type="text/javascript">

         $(document).ready(function () {

         });

         function CheckUnitNameExist() {

             var name = $("#TextBox1").get(0).value;

             PageMethods.CheckName(name, jsFunc);

         }

         function jsFunc(result) {

             alert(result);

         }

     </script>

 </head>

 <body >

     <form id="form1" runat="server">

      <asp:ScriptManager ID="ScriptManager1" runat="server"  EnablePageMethods="true">  </asp:ScriptManager>

     <div>

         请输入姓名:

         <asp:TextBox ID="TextBox1"  runat="server" Width="200" onchange="CheckUnitNameExist()"></asp:TextBox>

     </div>

     </form>

 </body>

 </html>

后台:

 using System.Collections.Generic;

 using System.Linq;

 using System.Web;

 using System.Web.UI;

 using System.Web.UI.WebControls;

 using System.Web.Services;

 using System.Web.Script.Services;

 namespace htmltest

 {

     public partial class WebForm7 : System.Web.UI.Page

     {

         protected void Page_Load(object sender, EventArgs e)

         {

         }

         [WebMethod]

         public static string CheckName(string UnitName)

         {

             if (UnitName == "苏州")

             {

                 return "苏州的名字已存在!";

             }

             else

             {

                 return "可随意填写!";

             }

         }

     }

 }

注意事项见学习文章.

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