viewbookcomment.aspx.cs

精通网络应用系统开发 光盘 该书是人民邮电出版社出版的

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;
using System.Linq;
using System.Data.Linq;
using System.Collections.Generic;

public partial class DesktopModules_Book_ViewBookComment : System.Web.UI.Page
{
    protected int nBookID = -1;
    protected string sName;
    protected string sAuthor;
    protected string sPublish;
    protected string sPublishDate;
    protected string sPrice;
    protected string sISBN;
    protected string sAttribute1;
    protected string sAttribute2;
    protected string sAttribute3;
    protected string sAttribute4;

    protected void Page_Load(object sender, EventArgs e)
    {       
        if (Request.Params["BookID"] != null)
        {
            nBookID = Int32.Parse(Request.Params["BookID"].ToString());
        }
        if (!Page.IsPostBack)
        {
            if (nBookID > -1)
            {
                BindBookData(nBookID);
                BindBookCommentData(nBookID);
            }
        }
    }

    private void BindBookData(int nBookID)
    {
        BookM book = new BookM();
        Book recb = book.GetSingleBook(nBookID);
        if (recb!=null)
        {
            sName = recb.Name;
            sAuthor = recb.Author;
            sPublish = recb.Publish.ToString();
            sPublishDate = recb.PublishDate.ToString();
            sPrice = recb.Price.ToString();
            sISBN = recb.ISBN.ToString();
            sAttribute1 = recb.Attribute1;
            sAttribute2 = recb.Attribute2;
            sAttribute3 = recb.Attribute3;
            sAttribute4 = recb.Attribute4;
			BookPicture.ImageUrl = "../.." + recb.Pictures.First().Url;
        }
     }

    private void BindBookCommentData(int nBookID)
    {
		CommentM comment = new CommentM();
		IList<Comment> recc = comment.GetCommentByBook(nBookID);
		if(recc == null) return;

		gvComment.DataSource = recc;
		gvComment.DataBind();
    }
    protected void SureBtn_Click(object sender, EventArgs e)
    {
        if (Session["UserID"] == null)
        {
            Response.Write("<script>window.alert('你还没有登录，现在不能对书籍评论！')</script>");
            return;
        }
        CommentM comment = new CommentM();

        try
        {
            ///添加书籍的评论信息
            comment.AddComment(Title.Text, Comment.Text, nBookID,Int32.Parse(Session["UserID"].ToString()));

            ///显示操作结果信息
            Response.Write("<script>window.alert('" + ASPNET35System.OPERATIONADDSUCCESSMESSAGE + "')</script>");
        }
        catch (Exception ex)
        {
            ///显示添加操作中的失败、错误信息
            Response.Redirect("~/DesktopModules/ErrorPage.aspx?ErrorUrl="
                + ASPNET35System.RedirectErrorUrl(Request.RawUrl)
                + "&ErrorMessage=" + ex.Message.Replace("\n", " "));
        }        
    }
}