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;
using ShopCart;
using System.Text.RegularExpressions;
public partial class Cart : PageBase
{
    UserInfoClass ucObj = new UserInfoClass();
    classDB dd = new classDB();
    protected void Page_Load(object sender, EventArgs e)
    {
        if (Session["Login"] == null)
        {
            Response.Write("<script>alert('对不起,你没有登陆,不能购买物品');</script>");
            Panel1.Visible = true;
            panel2.Visible = false;
        }
        else
        {
            Panel1.Visible = false;
            panel2.Visible = true;
            if (!IsPostBack)
            {
                ShopCartBind();
                TotalDs();
            }

        }

    }
    //绑定市场价
    public string GetMKPStr(string P_Str_MarketPrice)
    {
        return ucObj.VarStr(P_Str_MarketPrice, 1);
    }
    //绑定会员价
    public string GetMBPStr(string P_Str_MemberPrice)
    {
        return ucObj.VarStr(P_Str_MemberPrice, 1);
    }
    //绑定小计
    public string GetSPStr(string P_Str_SumPrice)
    {
        return ucObj.VarStr(P_Str_SumPrice, 1);
    }
    /// <summary>
    /// 获取购物车中的商品信息
    /// </summary>
    public void ShopCartBind()
    {
        ucObj.SCIBind("ShopCart", gvShopCart, Convert.ToInt32(Session["Login"].ToString()));
    }
    /// <summary>
    /// 显示购物车中的商品合计金额和商品数量
    /// </summary>
    public void TotalDs()
    {
        DataSet ds = ucObj.ReturnTotalDs(Convert.ToInt32(Session["Login"].ToString()), "TotalInfo");
        lbSumPrice.Text = ucObj.VarStr(ds.Tables["TotalInfo"].Rows[0][0].ToString(), 1);
        lbSumNum.Text = ucObj.VarStr(ds.Tables["TotalInfo"].Rows[0][2].ToString(), 1);
        Session["totalNumber"] = lbSumNum.Text;
        Session["totalPrice"] = lbSumPrice.Text;
    }
    protected void lnkbtnContinue_Click(object sender, EventArgs e)
    {
        Response.Redirect("produce.aspx");
    }
    protected void lnkbtnClear_Click(object sender, EventArgs e)
    {
        ucObj.DeleteShopCart(Convert.ToInt32(Session["Login"].ToString()));
        ShopCartBind();
        TotalDs();
        lbLag.Visible = true;
    }
    protected void gvShopCart_PageIndexChanging(object sender, GridViewPageEventArgs e)
    {
        gvShopCart.PageIndex = e.NewPageIndex;
        ShopCartBind();

    }
    protected void gvShopCart_RowDeleting(object sender, GridViewDeleteEventArgs e)
    {
        int P_Int_CartID = Convert.ToInt32(gvShopCart.DataKeys[e.RowIndex].Value.ToString());
        ucObj.DeleteShopCartByID(Convert.ToInt32(Session["Login"].ToString()), P_Int_CartID);
        ShopCartBind();
        TotalDs();
    }
    protected void gvShopCart_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
    {
        gvShopCart.EditIndex = -1;
        ShopCartBind();
        TotalDs();
    }
    protected void gvShopCart_RowUpdating(object sender, GridViewUpdateEventArgs e)
    {
        int P_Int_CartID = Convert.ToInt32(gvShopCart.DataKeys[e.RowIndex].Value.ToString());
        int P_Int_Num = Convert.ToInt32(((TextBox)(gvShopCart.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString());
        if (IsValidNum(P_Int_Num.ToString()) == true)
        {
            ucObj.UpdateSCI(Convert.ToInt32(Session["Login"].ToString()), P_Int_CartID, P_Int_Num);
            gvShopCart.EditIndex = -1;
            ShopCartBind();
            TotalDs();
        }
        else
        {
            gvShopCart.EditIndex = -1;
            ShopCartBind();
            TotalDs();

        }
    }
    protected void gvShopCart_RowEditing(object sender, GridViewEditEventArgs e)
    {
        gvShopCart.EditIndex = e.NewEditIndex;
        ShopCartBind();
        TotalDs();
    }
    //判断修改的数据是否为有效的数据
    public bool IsValidNum(string num)
    {
        return Regex.IsMatch(num, @"^\+?[1-9][0-9]*$");
    }
    protected void LinkButton1_Click(object sender, EventArgs e)
    {
        String oid = Session["Login"].ToString();
        if (dd.IsCartNO(oid) != 0)
        {
            Response.Redirect("UserOrder.aspx");
        }
        else
        {
            Response.Write("<script>alert('购物车没有商品，不能提交!');</script>");
        }

    }
}