shopping.aspx.cs

数据库安装将实例目录文件夹下扩展名为的两个文件拷贝到安装路径下的录下

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 System.Data.SqlClient;

public partial class MemberManage_Shopping : System.Web.UI.Page
{
    SqlOperate sqloperate = new SqlOperate();
    SqlConnection sqlconn = new SqlConnection(ConfigurationManager.AppSettings["ConnectionString"]);
    protected void Page_Load(object sender, EventArgs e)
    {
        if (Session["MName"] == null)
        {
            Response.Write("<script>alert('您还没有登录，请登录后再使用该功能！');</script>");
        }
        if (!IsPostBack)
        {
            string sqlstr = "select OrderID,GoodsName,GoodsTypeName,GoodsPrice from tb_OrderInfo"
                +" where OrderMember='" + Session["MName"].ToString() + "' and IsCheckout='否'";
            gvOrderInfo.DataKeyNames = new string[] { "OrderID" };
            sqloperate.gvDataBind(gvOrderInfo, sqlstr);
            string sqlstrtprice = "select sum(GoodsPrice) as tprice from tb_OrderInfo"
                +" where OrderMember='" + Session["MName"].ToString() + "' and IsCheckout='否'";
            sqlconn.Open();
            SqlDataAdapter myda = new SqlDataAdapter(sqlstrtprice,sqlconn);
            DataSet myds = new DataSet();
            myda.Fill(myds,"tb_OrderInfo");
            DataRowView mydrv=myds.Tables["tb_OrderInfo"].DefaultView[0];
            labMoney.Text = Convert.ToString(mydrv.Row["tprice"]);
        }
    }
    protected void lbtnCheck_Click(object sender, EventArgs e)
    {
        if (labMoney.Text == "")
        {
            Response.Write("<script>alert('您的购物车中没有任何物品');</script>");
        }
        else
        {
            string sqlstr = "select MemberName,MemberMoney from tb_Member where MemberName='" + Session["MName"].ToString() + "'";
            sqlconn.Open();
            SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlconn);
            DataSet myds = new DataSet();
            myda.Fill(myds, "tb_Member");
            DataRowView mydrv = myds.Tables["tb_Member"].DefaultView[0];
            string MPrice = Convert.ToString(mydrv.Row["MemberMoney"]);
            if (Convert.ToInt32(MPrice) < Convert.ToInt32(labMoney.Text.Trim()))
            {
                Response.Write("<script>alert('您的余额不足，请重新充值后再购买！');</script>");
            }
            else
            {
                string sqlstrshop1 = "update tb_Member set MemberMoney='"
                    + (Convert.ToInt32(MPrice) - Convert.ToInt32(labMoney.Text)) + "' where MemberName='" + Session["MName"].ToString() + "'";
                sqloperate.DataCom(sqlstrshop1);
                string sqlstrshop2 = "update tb_OrderInfo set IsCheckout='是' where OrderMember='" + Session["MName"].ToString() + "'";
                sqloperate.DataCom(sqlstrshop2);
                Response.Redirect("SuccShop.aspx");
            }
        }
    }
    protected void lbtnClear_Click(object sender, EventArgs e)
    {
        string sqlstr = "delete from tb_OrderInfo where OrderMember='" 
            + Session["MName"].ToString() + "' and IsCheckout='否'";
        sqloperate.DataCom(sqlstr);
        Response.Redirect("Shopping.aspx");
    }
    protected void gvOrderInfo_PageIndexChanging(object sender, GridViewPageEventArgs e)
    {
        gvOrderInfo.PageIndex = e.NewPageIndex;
        gvOrderInfo.DataBind();
    }
    protected void gvOrderInfo_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            ((LinkButton)(e.Row.Cells[3].Controls[0])).Attributes.Add("onclick","return confirm('确定要删除吗？')");
        }
    }
    protected void gvOrderInfo_RowDeleting(object sender, GridViewDeleteEventArgs e)
    {
        string sqlstr = "delete from tb_OrderInfo where OrderID='"+gvOrderInfo.DataKeys[e.RowIndex].Value+"'";
        sqloperate.DataCom(sqlstr);
        Response.Redirect("Shopping.aspx");
    }
}