mycart.aspx.cs

简介：功能描述：商品的分类显示、浏览商品、用户登录、选购和调整购物车、集中结算、存储订单、查看订单

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
//该源码下载自www.51aspx.com(５1ａsｐｘ．ｃｏｍ)

public partial class mycart : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            GridView1.DataSource = Session["shoppingcart"];
            GridView1.DataBind();
        }
    }
    protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
    {
  DataTable Cart = new DataTable();
  if (e.CommandName == "buy")
   {
    if (Session["ShoppingCart2"] == null)
     {
      Cart.Columns.Add("商品编号", typeof(int));       //建立数据表结构
      Cart.Columns.Add("商品名称", typeof(string));
      Cart.Columns.Add("单位数量", typeof(string));
      Cart.Columns.Add("单价", typeof(double));
      Cart.Columns.Add("订购数量", typeof(int));
      //Cart.Columns.Add("折扣", typeof(double));
      Cart.Columns.Add("合计", typeof(double));
      Session["ShoppingCart2"] = Cart;
     }
     Cart = (DataTable)Session["ShoppingCart2"];
   if (TextBox1.Text == "")   // 输入客户标志
    {
     Validate();              // 调用校验控件进行校验
    }
   else
   {
    Session["khbz"] = TextBox1.Text;
    int index = Convert.ToInt32(e.CommandArgument);
    GridViewRow row = GridView1.Rows[index];
    TextBox tt = (TextBox)row.Cells[1].FindControl("TextBox2");
    string dgl = tt.Text;
    int dg = int.Parse(dgl);
    if (dg <= 1) 
        dg = 1;        
    string bhText = row.Cells[2].Text;
    string mcText = row.Cells[3].Text;
    string dwText = row.Cells[4].Text;
    string djText = row.Cells[5].Text;
    int bh = int.Parse(bhText);
    double dj = double.Parse(djText);
    DataRow rr = Cart.NewRow();
    rr["商品编号"]=bh;
    rr["商品名称"] = mcText;
    rr["单位数量"] = dwText;
    rr["单价"] = dj;
    rr["订购数量"] = dg;
    //int zk = 1;
    //rr["折扣"] = zk;
    double hj = dj * dg;   
    rr["合计"] = hj;
    Cart.Rows.Add(rr);
    Session["ShoppingCart2"] = Cart;
   }
  }
 }
}