productlist.aspx.cs

网上购物,比较适合毕业设计,要下的就赶紧的哈

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;

namespace eshop
{
	/// <summary>
	/// ProductList 的摘要说明。
	/// </summary>
	public class ProductList : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Label PageCount;
		protected System.Web.UI.WebControls.DropDownList page;
		protected System.Web.UI.HtmlControls.HtmlForm form1;
		protected System.Web.UI.WebControls.Repeater products;
		//页的大小
		private static int PageSize = 5;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			if (!Page.IsPostBack)
			{
				//显示第一页的记录
				ShowResult(0, PageSize);
			}
		}
		void ShowResult(int pageIndex, int pageSize)
		{
			//绑定Repeater控件
			products.DataSource = BLL.Product.GetProductsByCategory(int.Parse(Request.QueryString["categoryId"]),
									pageSize, pageIndex);
			products.DataBind();
			//调用Product类中的方法获得该类商品的总数
			int resultCount = BLL.Product.GetProductCountByCategory(int.Parse(Request.QueryString["categoryId"]));
			int count;

			//如果查询结果总数是页大小的整数倍
			if (resultCount%PageSize == 0)
			{
				count = resultCount/PageSize;
				PageCount.Text = count.ToString();
			}
			else
			{
				count = resultCount/PageSize+1;
				PageCount.Text = count.ToString();
			}

			page.Items.Clear();
			//绑定页码到DropDownList控件
			for(int i=0; i<count; i++)
			{
				ListItem item = new ListItem((i+1).ToString(), i.ToString());
				page.Items.Add(item);
			}
			page.SelectedIndex = pageIndex;
		}

		#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.page.SelectedIndexChanged += new System.EventHandler(this.page_SelectedIndexChanged);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void page_SelectedIndexChanged(object sender, System.EventArgs e)
		{
			ShowResult(page.SelectedIndex, PageSize);
		}
	}
}