makeorder.aspx.cs

商业源码

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

using System.Data.OleDb;

namespace SCard
{
	/// <summary>
	/// makeOrder 的摘要说明。
	/// </summary>
	public class makeOrder : System.Web.UI.Page
	{
        protected System.Web.UI.HtmlControls.HtmlImage myImg;
        protected System.Web.UI.WebControls.Label lblPName;
        protected System.Web.UI.WebControls.Label lblPFPrice;
        protected System.Web.UI.WebControls.Label lblIsStock;

        protected System.Web.UI.WebControls.TextBox txtName;
        protected System.Web.UI.WebControls.TextBox txtEmail;
        protected System.Web.UI.WebControls.TextBox txtPhone; 
        protected System.Web.UI.WebControls.DropDownList ddlNum;
        protected System.Web.UI.WebControls.Label lblTotalPric;

        protected System.Web.UI.WebControls.Button btnOK;
        protected System.Web.UI.WebControls.Button btnClear;
        protected System.Web.UI.WebControls.TextBox txtCheck;
        protected System.Web.UI.WebControls.Label lblScript;
        protected System.Web.UI.HtmlControls.HtmlForm Form1;
		protected System.Web.UI.WebControls.LinkButton LinkButton1;
		protected System.Web.UI.WebControls.LinkButton newCode;
		protected System.Web.UI.WebControls.Label lblPNPrice;
        protected System.Web.UI.WebControls.RegularExpressionValidator REVEmail;
    
		private void Page_Load(object sender, System.EventArgs e)
		{
            Response.Buffer=true;
            Response.ExpiresAbsolute=DateTime.Now.AddSeconds(-1);
            Response.Expires=0;
            Response.CacheControl="no-cache";

            if( !IsPostBack )
            {

                if( Request.QueryString["id"]!=null && Request.QueryString["id"].ToString() != String.Empty )
                {
                    string strID = Request.QueryString["id"].ToString();
                    strID = CleanString.htmlInputText( strID );
                    ViewState["ID"] = strID;

                    PData();
                }
                else
                {
                    Response.Write("<script>");
                    Response.Write("alert('没有这个商品!!!');");
                    Response.Write("</script>");
                    Response.Redirect("index.aspx");
                    return;
                }
            }
                    
		}

        private void PData()//显示相应商品信息
        {
            string strID = ViewState["ID"].ToString();

            DBConn myDB = new DBConn();
            string sql = "select * from Products where PID=" + strID;
            OleDbDataReader dr ;
            try
            {
                dr = myDB.getDataReader( sql );
            }
            catch
            {
                Response.Write("<script>");
                Response.Write("alert('没有这个商品!!!');");
                Response.Write("</script>");
                Response.Redirect("index.aspx");
                return;
            }
            if( dr.Read() )
            {
                string strPID="";
                strPID = dr["PID"].ToString();

                myImg.Src = "showPP.aspx?id=" + strPID;
                lblPName.Text = dr["PName"].ToString();
                lblPFPrice.Text = double.Parse( dr["PFPrice"].ToString() ).ToString("f2");
                lblPNPrice.Text = double.Parse( dr["PNPrice"].ToString() ).ToString("f2");
                lblTotalPric.Text = lblPNPrice.Text;//

                ViewState["PCPrice"] = dr["PCPrice"].ToString();//

                string strPStock = dr["PStock"].ToString();
                if( Int32.Parse(strPStock) > 0 )
                {
                    lblIsStock.Text = "[仓库有货]";
                }
                else
                {
                    lblIsStock.Text = "[没有存货]";
                    btnOK.Enabled = false;
                }
            }
            else
            {
                Response.Write("<script>");
                Response.Write("alert('没有这个商品!!!');");
                Response.Write("</script>");
                dr.Close();
                myDB.Close();
                Response.Redirect("index.aspx");
                return;
            }
            dr.Close();
            myDB.Close();
        }

   



		#region Web 窗体设计器生成的代码
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{    
			this.ddlNum.SelectedIndexChanged += new System.EventHandler(this.ddlNum_SelectedIndexChanged);
			this.btnOK.Click += new System.EventHandler(this.btnOK_Click);
			this.btnClear.Click += new System.EventHandler(this.btnClear_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

        private void ddlNum_SelectedIndexChanged(object sender, System.EventArgs e)
        {
            double dblNum = Int32.Parse(ddlNum.SelectedValue) * double.Parse(lblPNPrice.Text);
            lblTotalPric.Text = dblNum.ToString("f2");
        }

        private void btnClear_Click(object sender, System.EventArgs e)
        {
            txtName.Text = "";
            txtEmail.Text = "";
            txtPhone.Text = "";
            ddlNum.SelectedIndex = 0;
            lblTotalPric.Text = lblPNPrice.Text;

            txtCheck.Text = "";
        }

        private void btnOK_Click(object sender, System.EventArgs e)
        {
            string strID = ViewState["ID"].ToString();
            string strName = txtName.Text.Trim();
            string strEmail = txtEmail.Text.Trim();
            string strPhone = txtPhone.Text.Trim();
            string strNum = ddlNum.SelectedValue;

            if( strName == String.Empty || strEmail == String.Empty )
            {
                Response.Write("<script>");
                Response.Write("alert('请把必填项添上!!!');");
                Response.Write("</script>");
                return;
            }
            if( strName.Length < 2 && strName.Length > 15 )
            {
                Response.Write("<script>");
                Response.Write("alert('请检查姓名是否正确!!!');");
                Response.Write("</script>");
                return;
            }
            if( Session["CheckCode"] == null )
            {
                Response.Redirect("index.aspx");
                return;
            }
            if( Session["CheckCode"].ToString() != txtCheck.Text.Trim() )
            {
                Response.Write("<script>");
                Response.Write ("alert('输入的验证码有误！请重新输入！')");
                Response.Write ("</script>");
                return;
            }

            //检查库存
            DBConn myDB = new DBConn();
            string mySql = "select PStock from Products where PID=" + strID;
            OleDbDataReader mydr = myDB.getDataReader( mySql );
            if( mydr.Read() )
            {
                int iPStock = Int32.Parse( mydr["PStock"].ToString() );
                if( iPStock < int.Parse(strNum) )
                {
                    Response.Write("<script>");
                    Response.Write("alert('库存不足!!!现在库存还有[ " + iPStock.ToString() + " ]');");
                    Response.Write("</script>");
                    return;
                }

            }
            else
            {
                Response.Write("<script>");
                Response.Write("alert('没有这个商品!!!');");
                Response.Write("</script>");
                mydr.Close();
                myDB.Close();
                Response.Redirect("index.aspx");
                return;
            }
            mydr.Close();
            myDB.Close();

            Order myOrder = new Order();
            /*
            if( Session["myOrder"] != null )
            {
                myOrder.setOID( ((Order)Session["myOrder"]).getOID() );
            }
            */
            myOrder.PID = strID;
            myOrder.PName = lblPName.Text;
            myOrder.PNum = strNum.ToString();
            myOrder.PPrice = lblPNPrice.Text;
            myOrder.TotalPrice = lblTotalPric.Text;
            myOrder.TName = CleanString.htmlInputText( strName );
            myOrder.Email = strEmail;
            myOrder.Phone = CleanString.htmlInputText( strPhone );
            if( ViewState["PCPrice"] != null)
            {
                myOrder.PCPrice = ViewState["PCPrice"].ToString();//
            }
            

            Session["myOrder"] = myOrder;

            if( Session["SubmitCheck"] != null )
            {
                DateTime myDTime = (DateTime)Session["SubmitCheck"];
                if( myDTime.AddMilliseconds(30000) > DateTime.Now )
                {
                    Response.Write("<script>");
                    TimeSpan myTime = DateTime.Now - (DateTime)Session["SubmitCheck"];
                    Response.Write("alert('不能频繁提交,请在" + (30-myTime.Seconds) + "秒后继续!!!');");
                    Response.Write("</script>");
                    return;
                } 
            }
            Session["SubmitCheck"] = DateTime.Now;

            Response.Redirect("orderinfo.aspx?key="+Server.UrlEncode("makeOrder.aspx?id=" + ViewState["ID"].ToString()));

        }

        private void btnNewCode_Click(object sender, System.EventArgs e)
        {
        
        }
	}
}