car.aspx.cs

一个电子商务网源码

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 web.Code;
using System.Data.SqlClient;

namespace web.customer
{
	/// <summary>
	/// Car 的摘要说明。
	/// </summary>
	public partial class Car : System.Web.UI.Page
	{

		protected MyCarDAO myCarDAO = new MyCarDAO();
	
		protected void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
			if(!Page.IsPostBack)
			{
				if( Session["LoginName"] != null )
				{
					string Name = Session["LoginName"].ToString();
					if( myCarDAO.checkExistGoods( Name ) )
					{
						Panel1.Visible = true;
						Panel2.Visible = false;
						DataSet ds = new DataSet();
						ds = myCarDAO.getMyCar( Name );
						DataGrid1.DataSource = ds.Tables[0];
						DataGrid1.DataBind();
						totalPrice.InnerText=myCarDAO.getTotalPrice( Name );
					}
					else
					{
						Panel1.Visible = false;
						Panel2.Visible = true;
					}
				}
				else
				{
					Response.Redirect( "../Login.aspx?Return=" + Request.Url.ToString() );
				}
			}
		}

		#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.DataGrid1.UpdateCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.DataGrid1_UpdateCommand);
			this.DataGrid1.DeleteCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.DataGrid1_DeleteCommand);
			this.ImageButton3.Click += new System.Web.UI.ImageClickEventHandler(this.ImageButton3_Click);
			this.ImageButton4.Click += new System.Web.UI.ImageClickEventHandler(this.ImageButton4_Click);
			this.ImageButton5.Click += new System.Web.UI.ImageClickEventHandler(this.ImageButton5_Click);

		}
		#endregion

		private void ImageButton3_Click(object sender, System.Web.UI.ImageClickEventArgs e)
		{
			if(Request.Params["Return"] != null)
			{
				Response.Redirect(Request.Params["Return"].ToString());
			}
			else
			{
				Response.Redirect("../index.aspx");
			}
		}

		private void ImageButton5_Click(object sender, System.Web.UI.ImageClickEventArgs e)
		{
			if( myCarDAO.Buy(Session["LoginName"].ToString()) != 0 )
			{
//				Response.Write("<font color='red'>结帐成功!</font>");
//				Response.Redirect(Request.Url.ToString());
				Server.Transfer("BuySecc.aspx");
			}
			else
			{
				return;
			}
		}

		private void DataGrid1_DeleteCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
		{
			int CarId = Convert.ToInt32(((Label)(e.Item.FindControl("id"))).Text);
			myCarDAO.deleteGoodsInMyCar( CarId );
			Response.Redirect(Request.Url.ToString());
		}

		private void DataGrid1_UpdateCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
		{
			TextBox TB_number = (TextBox)e.Item.FindControl("TextBox1");
			if( TB_number.Text == "" )
			{
				Response.Write("<script>alert('请输入你需要的数量!')</script>");
			}
			else
			{
				int CarId = Convert.ToInt32(((Label)(e.Item.FindControl("id"))).Text);
				int number = Convert.ToInt32( TB_number.Text );
				myCarDAO.updateGoodsNumber( CarId, number );
				Response.Write("<script>alert('修改成功!')</script>");
				Response.Redirect(Request.Url.ToString());
			}
		}

		private void ImageButton4_Click(object sender, System.Web.UI.ImageClickEventArgs e)
		{
			myCarDAO.clearMyCar( Session["LoginName"].ToString() );
			Response.Redirect(Request.Url.ToString());
		}
	}
}