日期:2014-05-16 浏览次数:20402 次
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="textBox.WebForm1" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> <script type="text/javascript"> function validate() { var name = document.getElementById("txtName"); if (name.value == 2) { alert("你必须不是二!"); name.focus(); return false; } return true; } </script> </head> <body> <form id="form1" runat="server"> <div> <asp:TextBox ID="txtName" onblur="validate();" runat="server" /> </div> </form> </body> </html>