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>