cart.aspx.cs

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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;

public partial class cart : System.Web.UI.Page
{
    private static string cartid;
    private static string shopperid;
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
           // if (Request.Cookies["cartID"].ToString().Trim() != null)
            if(checkcart())
            {
                try
                {
                    //cartid = Request.Cookies["cartID"].Value.ToString().Trim();
                    DataSet ds = databaseAccess.Getcart(cartid);
                    GridView1.DataSource = ds;
                    GridView1.DataBind();
                    double totalmoney = 0;
                    double tempprice;
                    for (int i = 0; i < GridView1.Rows.Count; i++)
                    {
                        string str2 = GridView1.Rows[i].Cells[2].Text.ToString();
                        string str = GridView1.Rows[i].Cells[3].Text.ToString();
                        tempprice = Convert.ToDouble(GridView1.Rows[i].Cells[3].Text.ToString());
                        totalmoney += tempprice;
                    }
                    Label1.Text = totalmoney.ToString();
                }
                catch
                { }

            }
            else
            {
                Response.Write("<script language='javascript'>alert('您的够物车为空！')</script>");
            }
        }
    }
    protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
    {

    }
    protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
    {
        int productID = int.Parse(GridView1.DataKeys[e.RowIndex].Value.ToString());
        string sql = "delete from shoppingcart where cartID='" + cartid + "' and productID='" + productID + "'";
        databaseAccess.ExeSql(sql);
        cartid = Request.Cookies["cartID"].Value.ToString().Trim();
        DataSet ds = databaseAccess.Getcart(cartid);