本文共 881 字,大约阅读时间需要 2 分钟。
webform1.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="test4_2.WebForm1" %>
webform1.aspx.cs
using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;namespace test4_2{ public partial class WebForm1 : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { txtName.Focus(); } protected void txtName_TextChanged(object sender, EventArgs e) { if (txtName.Text == "admin") { lblValidate.Text = "此用户已存在"; } else { lblValidate.Text = "用户名可用"; } } }}
转载地址:http://gurm.baihongyu.com/