Book.aspx.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using MyWeb.DBUtility;
using MyWeb.WebUtility;
using System.Data;

namespace MyWeb
{
    public partial class Book : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if(!IsPostBack){
                for (int i = 0; i < 30; i++)
                {
                    DropDownList1.Items.Add(new ListItem((i+1)+"份",i.ToString()));
                }
                DBHelper db = new DBHelper();
                TextBox3.Text = Session["name"].ToString();
                string sql = "select * from Goods_Tbl where del=0 and id=" + Request["id"] + "";
                DataSet ds = db.Query(sql);
                Label8.Text = (Convert.ToDouble(ds.Tables[0].Rows[0]["price"]) * Convert.ToDouble("1")).ToString()+"元";
            }
        }

        protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
        {
            DBHelper db = new DBHelper();
            string sql = "select * from Class_Tbl where del=0 and id="+Request["id"]+"";
            DataSet ds = db.Query(sql);
            Label8.Text = (Convert.ToDouble(ds.Tables[0].Rows[0]["price"]) * Convert.ToDouble(DropDownList1.SelectedItem.ToString().Substring(0, DropDownList1.SelectedItem.ToString().Length-1))).ToString()+"元";
        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            DBHelper db = new DBHelper();
            WebHelper wb = new WebHelper();
            if (TextBox1.Text=="")
            {
                wb.Alert("选购时间不能为空");
            }
            //else if (TextBox2.Text == "")
            //{
            //    wb.Alert("送达时间不能为空");
            //}
            else if (TextBox3.Text == "")
            {
                wb.Alert("姓名不能为空");
            }
            else if (TextBox4.Text == "")
            {
                wb.Alert("手机号码不能为空");
            }
            //else if (TextBox5.Text == "")
            //{
            //    wb.Alert("身份证号不能为空");