bookshow.aspx.cs

网上书店系统由两部分组成:购书网站和订单处理中心。其中购书网站是一个Web应用程序, 用户可以通过Web浏览器登录到此网站.在此网站

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 System.Data.OleDb;

namespace Bookshop
{
	/// <summary>
	/// BookShow 的摘要说明。
	/// </summary>
	public class BookShow : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.WebControls.ImageButton ImageButton1;
		protected System.Web.UI.WebControls.Label Label2;
		protected System.Web.UI.WebControls.Image Image1;
	
		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( Session["uid"] != null ) this.ImageButton1.Visible = true;
			else this.ImageButton1.Visible = false;
			if( !Page.IsPostBack )
			{
				initData();
			}
		}
		private void initData()
		{
			OleDbDataReader tempReader = OleDbConn.ExecuteReader( "select * from Titles,Publishers where Titles.pub_id = Publishers.pub_id and title_id=" + Int32.Parse( Request["bookid"].ToString() ) );
			Label1.Text = "";
			if( tempReader.Read() )
			{
				Image1.ImageUrl = "upload/" + tempReader["pic"].ToString();
				Label1.Text += "<li>书名:<b>&lt;&lt;" + tempReader["title"].ToString() + "&gt;&gt;</b><br><br>";
				Label1.Text += "<li>出版社:<b>" + tempReader["pub_name"].ToString() + "</b><br><br>";
				Label1.Text += "<li>价格:<b>" + tempReader["price"].ToString() + "</b><br><br>";
                Label1.Text += "<li>上架日期:<b>" + tempReader["dateonsale"].ToString() + "</b><br><br>";
				Label2.Text = "<p style=line-height:26px><b>简单介绍:</b><br>&nbsp;&nbsp;&nbsp;&nbsp;"+tempReader["notes"].ToString()+"</p>";
			}
			tempReader.Close();
			OleDbConn.CloseConn();
		}

		#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.ImageButton1.Click += new System.Web.UI.ImageClickEventHandler(this.ImageButton1_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void ImageButton1_Click(object sender, System.Web.UI.ImageClickEventArgs e)
		{
			OleDbDataReader tempReader = OleDbConn.ExecuteReader( "select * from Titles,Publishers where Titles.pub_id = Publishers.pub_id and title_id=" + Int32.Parse( Request["bookid"].ToString() ) );
			if( tempReader.Read() )
			{
				((ArrayList)Session["bookCart"]).Add( new BookInfo( tempReader["title"].ToString(), (int)tempReader["title_id"], (float)tempReader["price"] ) );	
				tempReader.Close();
				OleDbConn.CloseConn();
				Response.Write( "<script language=javascript>window.open(\'ShopCartSimple.aspx\',1,\'scrollbar=yes,width=350,height=400;\');</script>" );
			}
			else
			{
				tempReader.Close();
				OleDbConn.CloseConn();
			}

		}
	}
}