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 MyBookShop.BLL;
using MyBookShop.Models;
public partial class BookDetail : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
if (Request.QueryString["bid"] != null)
{
initPage(Convert.ToInt32(Request.QueryString["bid"]));
ViewState["BookId"] = Request.QueryString["bid"].ToString();
}
}
}
private void initPage(int bid)
{
Book book=BookManager.GetBookById(bid);
book.Clicks++;
BookManager.ModifyBook(book);
this.lblAuthor.Text=book.Author;
this.lblBookName.Text = book.Title;
this.lblPublisher.Text = book.Publisher.Name;
this.lblBooksName.Text = book.Category.Name;
this.lblISBN.Text = book.ISBN;
this.lblPublishDate.Text = book.PublishDate.ToShortDateString();
this.lblFonts.Text = book.WordsCount.ToString();
this.lblPrice.Text = book.UnitPrice.ToString()+"元";
this.lblContent.Text = book.ContentDescription;
this.lblAuthorIntroduce.Text = book.AurhorDescription;
this.lblRecomment.Text = book.EditorComment;
this.lblCatagory.Text = book.TOC;
this.imgBook.ImageUrl = StringHandler.CoverUrl(book.ISBN);
}
/// <summary>
/// 購買
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void imgb_Buy_Click(object sender, ImageClickEventArgs e)
{
if (Session["CurrentUser"] != null)
{
if (Session["Cart"] == null)
{
this.BuildCart();
}
else
{
DataTable cart = Session["Cart"] as DataTable;
if (this.ExistBook(cart))
{
this.BuildSession(cart);
}
}
Response.Redirect("Cart.aspx");
}
else
{
Response.Redirect(@"Membership/UserLogin.aspx");
}
}
/// <summary>
/// 已有圖書
/// </summary>
/// <param name="cart"></param>
/// <returns></returns>
public bool ExistBook(DataTable cart)
{
foreach (DataRow dr in cart.Rows)
{
if (dr["BookName"].ToString().Equals(this.lblBookName.Text.Trim()))
{
dr["Number"] = Convert.ToInt32(dr["Number"]) + 1;
Session["Cart"] = cart;
Response.Redirect("Cart.aspx");
}
}
return true;
}
/// <summary>
/// 新建購物車表
/// </summary>
public void BuildCart()
{
DataTable cart = new DataTable();
cart.Columns.Add("BookId");
cart.Columns.Add("BookName");
cart.Columns.Add("Number");
cart.Columns.Add("UnitPrice");
cart.Columns.Add("ImageUrl");
this.BuildSession(cart);
}
/// <summary>
/// 添加新書
/// </summary>
/// <param name="cart"></param>
public void BuildSession(DataTable cart)
{
DataRow dr = cart.NewRow();
dr["BookId"] = ViewState["BookId"].ToString();
dr["BookName"] = this.lblBookName.Text.Trim();
dr["Number"] = "1";
dr["UnitPrice"] = this.lblPrice.Text.Substring(0, this.lblPrice.Text.Length - 1); ;
dr["ImageUrl"] = this.lblISBN.Text.Trim();
cart.Rows.Add(dr);
Session["Cart"] = cart;
}
}