default.aspx.cs

电子商务购物网站

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 shop.DbBase;

namespace shop
{
	/// <summary>
	/// _default 的摘要说明。
	/// </summary>
	public class _default : System.Web.UI.Page
	{  

		
		#region 自定义变量
		private string sUserId;
		private string sUserName;
		protected System.Web.UI.WebControls.HyperLink lnkLogout;
		private string sPassword;
		#endregion
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
			if(!object.Equals(Session["UserId"],null) && !object.Equals(Session["UserName"],null))
			{
				lblLoginInfo.Text = Session["UserName"] + "您好，欢迎光临!";
				lnkLogout.Visible = true;
			}
		}

		#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.imgBtnLogin.Click += new System.Web.UI.ImageClickEventHandler(this.imgBtnLogin_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void imgBtnLogin_Click(object sender, System.Web.UI.ImageClickEventArgs e)
		{
			string sSql = "select UserId,UserName,Pwd from Users where UserName=\"" + txtUserName.Text + "\"";
			DataSet oDS = OleBase.ExecuteSql4Ds(sSql);
			lblLoginFail.Visible = true;
			/**/
			if(oDS.Tables[0].Rows.Count > 0)
			{
				sUserId = oDS.Tables[0].Rows[0].ItemArray[0].ToString();
				sUserName = oDS.Tables[0].Rows[0].ItemArray[1].ToString();
				sPassword = oDS.Tables[0].Rows[0].ItemArray[2].ToString();
				if(sPassword == txtPassWord.Text)
				{
					Session["UserId"] = sUserId;
					Session["UserName"] = sUserName;
					lblLoginFail.Visible = false;
					lblLoginInfo.Text = sUserName + "您好，欢迎光临!";
					lnkLogout.Visible = true;
				}
			}
			/**/
		}
	}
}