checkout.aspx.cs

网上购物,比较适合毕业设计,要下的就赶紧的哈

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;

namespace eshop
{
	/// <summary>
	/// CheckOut 的摘要说明。
	/// </summary>
	public class CheckOut : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Label Message;
		protected System.Web.UI.WebControls.DataGrid MyDataGrid;
		protected System.Web.UI.WebControls.Label TotalLbl;
		protected System.Web.UI.WebControls.Button SubmitBtn;
		protected System.Web.UI.HtmlControls.HtmlForm Form1;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			if (!Page.IsPostBack)
			{
				//得到cartID 
				BLL.ShoppingCart cart = new BLL.ShoppingCart();
				string cartID = cart.GetShoppingCartId();
				//绑定购物车信息到DataGrid
				MyDataGrid.DataSource = cart.GetItems(cartID);
				MyDataGrid.DataBind();
				//得到购物车总花费
				TotalLbl.Text = String.Format( "{0:c}", cart.GetTotal(cartID));
			}

		}

		#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.SubmitBtn.Click += new System.EventHandler(this.SubmitBtn_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void SubmitBtn_Click(object sender, System.EventArgs e)
		{
			BLL.ShoppingCart cart = new BLL.ShoppingCart();
			string cartID = cart.GetShoppingCartId();
			decimal totalCost = cart.GetTotal(cartID);

			string userID = User.Identity.Name;

			if (cartID!=null && userID!=null)
			{
				BLL.Orders order = new BLL.Orders();
				if (order.PayOrder(userID, totalCost) == 1)
				{
					int orderID = order.PlaceOrder(userID, cartID);

					Message.Text = "您的订单号为"+orderID;

					SubmitBtn.Visible = false;
				}

				else
				{
					ShowErrorMsgBox();
				}
			}
		}

		void ShowErrorMsgBox()
		{
			Response.Write("<script language=javascript>");
			Response.Write("window.alert(\"您的预存款不足\")");
			Response.Write("</script>");
		}
	}
}