default.aspx.cs

b to b 模式 电子商务系统

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 System.Data.SqlClient;
using System.Configuration;

namespace B2Bsite
{
	/// <summary>
	/// 首页
	/// </summary>
	public class _Default : System.Web.UI.Page
	{
        protected System.Web.UI.WebControls.DataList DataList1;

        public SqlConnection conn=new SqlConnection(ConfigurationSettings.AppSettings["ConnStr"]);
    
		private void Page_Load(object sender, System.EventArgs e)
		{

            if(!IsPostBack)
            {
                String sql="SELECT * FROM PType where parentId=0";
                SqlCommand command=new SqlCommand(sql,conn);
                conn.Open();
                SqlDataReader dr=command.ExecuteReader();
                DataList1.DataSource = dr;
                DataList1.DataKeyField = "category_ID";
                DataList1.DataBind();
                dr.Close();
                conn.Close();
            }

		}

		#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.DataList1.ItemDataBound += new System.Web.UI.WebControls.DataListItemEventHandler(this.DataList1_ItemDataBound);
            this.Load += new System.EventHandler(this.Page_Load);

        }
		#endregion

        private void DataList1_ItemDataBound(object sender, System.Web.UI.WebControls.DataListItemEventArgs e)
        {
            Repeater myRepeater = (Repeater)e.Item.FindControl("Repeater1");
            
            if(myRepeater != null)
            {				
                SqlConnection conn=new SqlConnection(ConfigurationSettings.AppSettings["ConnStr"]);
                String sql="select top 6 * from PType where parentId=" + DataList1.DataKeys[e.Item.ItemIndex].ToString();
                SqlCommand command=new SqlCommand(sql,conn);
                conn.Open();
                SqlDataReader dr=command.ExecuteReader();

                myRepeater.DataSource=dr;
                myRepeater.DataBind();

                dr.Close();
                conn.Close();
            }
        }

	}
}