login.aspx.cs

这是一学习的好东西

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using DocAdmin.BLL ;
using DocAdmin.COMMON ;

namespace DocAdmin.USL
{
	/// <summary>
	/// _Default 的摘要说明。
	/// </summary>
	public class Login : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Image Image2;
		protected System.Web.UI.WebControls.Label lwelcome;
		protected System.Web.UI.WebControls.TextBox tb_UsrID;
		protected System.Web.UI.WebControls.TextBox tb_UsrPassword;
		protected System.Web.UI.WebControls.Label luserid;
		protected System.Web.UI.WebControls.Label lpassword;
		protected System.Web.UI.WebControls.RequiredFieldValidator R1;
		protected System.Web.UI.WebControls.Label err_Usrid;
		protected System.Web.UI.WebControls.Label err_Pwd;
		protected System.Web.UI.WebControls.RequiredFieldValidator R2;
		protected System.Web.UI.WebControls.Button b_Login;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
		}

		#region Web 窗体设计器生成的代码
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{    
			this.b_Login.Click += new System.EventHandler(this.b_Login_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void b_Login_Click(object sender, System.EventArgs e)
		{
			string loginID = this.tb_UsrID.Text.Trim() ;
			string pwd = this.tb_UsrPassword.Text.Trim() ;

			int i = Usr.UserLogin(loginID,pwd) ;			 
			
			switch(i)
			{
				case 0:
					//登录成功
					//保存登录信息
					//初始化员工信息
					Usr usr = new Usr() ;
					usr.GetUsrFromLoginID(loginID) ;
					DocAdminGlobals.LoginUsr = usr ;

					//页面重定向到菜单页
					string cmd = "window.parent.location.reload();" ;
					CommHandler.ExeClient(Page,cmd) ;
					break ;
				case 1:
					//密码错误
					this.err_Pwd.Visible = true ;
					this.err_Usrid.Visible = false ;
					break ;
				case 2:
					//用户ID错误
					this.err_Pwd.Visible = false ;
					this.err_Usrid.Visible = true ;
					break ;				
			}
		
		}
		
	}
}