//Ext.JS
function LoginForm() {
var loginPanel = new Ext.form.FormPanel({
id: "loginPanel",
labelPad: 0,
labelWidth: 60,
frame: true,
labelAlign:"left",
items: [
{ xtype: "field", id: "userName", fieldLabel: "用户名" },
{ xtype: "field", id: "password", fieldLabel: "密 码" }
]
});
var loginWindow;
if (!loginWindow) {
loginWindow = new Ext.Window({
id: "loginWindow",
title: "登录窗口",
width: 230,//Window宽度
height: 137,//Window高度
resizable: false,/*是否可手动调整Window大小，默认为true*/
closable: false,//关闭按钮，默认为true
items: [loginPanel],
buttons: [
{ xtype: "button", text: "确定", pressed: true, handler: validatorData }, /*pressed表示按钮是否按下，默认为false*/
{xtype: "button", text: "取消", handler: function() { loginWindow.close(); } }]/*点击取消关闭Window,也可以调用loginWindow.hide()隐藏这个Window*/
});
}
loginWindow.show();
//按回车时调用确定事件
var map = new Ext.KeyMap(loginWindow.getEl(), {
key: 13,//回车的键盘key值
fn: validatorData //确定事件
});
//确定事件
function validatorData() {
var userName=Ext.getCmp("userName").getValue();
var Password = Ext.getCmp("password").getValue();
if (Ext.util.Format.trim(userName) == "" || Ext.util.Format.trim(Password)=="")
{
Ext.Msg.alert("警告","请正确输入数据，用户名和密码都不能够为空！");
return;
}
//数据库连接及处理
Ext.Ajax.request({
url: "LoginValidator.aspx",//登录处理页面
params: {ParamUserName: userName, ParamPassword: Password },//参数
success: function(response, option) {
var obj = Ext.util.JSON.decode(response.responseText); /*decode将json字符串转换成对象;(对应的是encode将对象转换成json字符串)*/
if (obj.success == true) {
Ext.Msg.alert("登录成功", "登录成功！");
}
},
failure: function() {
Ext.Msg.alert("登录失败", "登录失败！");
}
});
}
}
Ext.onReady(LoginForm);
/*===========LoginValidator.aspx代码============*/
//要把其他的页面代码都去掉，只保留第一行，类似下面的代码
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Login.aspx.cs" Inherits="ExtExmaple.Login.Login" %>
/*==========LoginValidator.aspx.cs代码========================*/
protected void Page_Load(object sender, EventArgs e)
{
string UserName = Request.QueryString["ParamUserName"];
string Password = Request.QueryString["ParamPassword"];
//连接数据库
#region 连接数据库
/*
SqlConnection conn = new SqlConnection();
conn.ConnectionString = "连接字符串";
if (conn.State == ConnectionState.Closed)
conn.Open();
SqlCommand cmd = new SqlCommand();
cmd.Connection = conn;
cmd.CommandText = string.Format(" select UserID from 表 where UserName = '{0}' and Password = '{1}'", UserName, Password);
object obj = cmd.ExecuteScalar();
if (obj != null)
{
if (Convert.ToString(obj) != "")
{
Response.Write("{success:true}");
}
else
{
Response.Write("{success:false}");
}
}
else
{
Response.Write("{success:false}");
}
*/
#endregion
Response.Write("{success:true}");
}