quicksearch.aspx.cs

这是一个编好的网上书店系统

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 RobertSoft.BookStore.DBClass;

namespace BookStore
{
	/// <summary>
	/// QuickSearch 的摘要说明。
	/// </summary>
	public class QuickSearch : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.DataGrid SearchDTGrid;
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.HtmlControls.HtmlForm QuickSearchFrom;
		protected System.Web.UI.WebControls.Label lbCount;
		protected Lei.WebControls.PagerDataList pdlSubTypeDetail;
		protected System.Web.UI.WebControls.Label lbNobook;
		RobertSoft.BookStore.Book currentBook = new RobertSoft.BookStore.Book();

		private void Page_Load(object sender, System.EventArgs e)
		{
			

			if(!IsPostBack)
			{
				string strSearchType;
				string strSearchKeyword;
				string strSql;
				//  [12/1/2004]
				// Get the value we wanted
				if(!Object.Equals(Request["strSearchType"],null))
				{
					// Get query from Left pannel(leftControl.ascx)
					strSearchType = Request["strSearchType"];
					strSearchKeyword = Request["SearchKeyword"];
					strSql = "select * from BookInfo where 1=1 and " + strSearchType + " like '%" 
						+ strSearchKeyword + "%'";
				}
				else
				{	
					// Get query from Search.aspx
					strSql = "select * from BookInfo where 1=1";
					if(!Object.Equals(Request["Author"],null))
					{
						strSql = strSql + " and Author like '%" + Request["Author"].Trim() + "%'";
					}
					if(!Object.Equals(Request["Publisher"],null))
					{
						strSql = strSql + " and PublishingHouse like '%" + Request["Publisher"].Trim() + "%'";
					}
					if(!Object.Equals(Request["BookName"],null))
					{
						strSql = strSql + " and BookName like '%" + Request["BookName"].Trim() + "%'";
					}
				}

				//  [12/1/2004]
				// Bind to datagrid and be ready to display
				GridBind(strSql);
			}
		}

		private void GridBind(string str)
		{
			//  [12/1/2004]

			DataView currentDV;
			currentDV = currentBook.GetBookEx(str);
			if(currentDV.Count !=0)
			{
				this.pdlSubTypeDetail.DataSource = currentDV;
				this.pdlSubTypeDetail.DataBind();
				this.lbCount.Text = "共找到" + currentDV.Count + "个符合搜索条件的书籍：";
			}
			else
			{
				this.pdlSubTypeDetail.Visible = false;
				this.lbNobook.Visible = true;
				this.lbNobook.Text = "很抱歉没有找到符合您给定条件的书籍。您可以去<a href='LackBook.aspx'>缺书登记</a>登记您的需求！谢谢。"	;
			}
			this.pdlSubTypeDetail.DataSource = currentDV;
			this.pdlSubTypeDetail.DataBind();
		}

		#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.pdlSubTypeDetail.ItemCommand += new System.Web.UI.WebControls.DataListCommandEventHandler(this.pdlSubTypeDetail_ItemCommand);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void pdlSubTypeDetail_ItemCommand(object source, System.Web.UI.WebControls.DataListCommandEventArgs e)
		{
			if(e.CommandName == "select")
			{
				string strUrl;
				strUrl = "ShowBookDetail.aspx?ID=" + e.CommandArgument;
				Response.Redirect(strUrl);
			}
		}
	}
}