photo.aspx.cs

ASP.net网站开发四“酷”全书：新闻、论坛、电子商城、博客_源码

using System;
using System.Collections;
using System.ComponentModel;
using System.Configuration;
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 WesternByte.MyBlog.Core.Blog;
using WesternByte.MyBlog.Core.Category;
using WesternByte.MyBlog.Core.Picture;
using Wuqi.Webdiyer;

namespace WesternByte.MyBlog.Blog
{
	/// <summary>
	/// Photo 的摘要说明。
	/// </summary>
	public class Photo : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Literal pageTitle;
		protected System.Web.UI.WebControls.Label title;
		protected System.Web.UI.WebControls.DataList pictureList;

		protected Wuqi.Webdiyer.AspNetPager pager;
		protected CategoryDAO cDAO = new CategoryDAO();
		protected PictureDAO pDAO = new PictureDAO();
		protected BlogDAO bDAO = new BlogDAO();

		private void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
			int BlogID = Convert.ToInt32(Page.Request.QueryString["BlogID"]);
			int CategoryID = Convert.ToInt32(Page.Request.QueryString["CategoryID"]);
			BlogVO blogVO = bDAO.Load(BlogID);
			if(blogVO.Subject == null || blogVO.Subject == "")
			{
				blogVO.Subject = blogVO.Name;
			}
			pageTitle.Text = blogVO.Subject;
			CategoryVO cVO = cDAO.Load(CategoryID);
			title.Text = cVO.Name + "<br>" + cVO.Description;
			if(!Page.IsPostBack)
			{
				pager.RecordCount = pDAO.LoadCount(BlogID,CategoryID);
				BindData(BlogID,CategoryID);
			}
		}

		private void BindData(int BlogID,int CategoryID)
		{
			//当前分类下所有图片列表
			DataSet pDs = pDAO.LoadList(BlogID,CategoryID,pager.PageSize*(pager.CurrentPageIndex-1),pager.PageSize);
			pDs.Tables[0].Columns.Add("Image");
			for(int i=0;i<pDs.Tables[0].Rows.Count;i++)
			{
				//图片路径
				string imageWebPath = ConfigurationSettings.AppSettings["ImageWebPath"].ToString() + pDs.Tables[0].Rows[i]["BlogID"].ToString() + "/" + pDs.Tables[0].Rows[i]["CategoryID"].ToString();
				pDs.Tables[0].Rows[i]["Image"] = imageWebPath + "/t_" + pDs.Tables[0].Rows[i]["ImageUrl"].ToString();
				pDs.Tables[0].Rows[i]["ImageUrl"] = "View2.aspx?PictureID=" + pDs.Tables[0].Rows[i]["PictureID"].ToString() + "&BlogID=" + BlogID;
				if(pDs.Tables[0].Rows[i]["Subject"].ToString().Length>8)
				{
					pDs.Tables[0].Rows[i]["Subject"] = pDs.Tables[0].Rows[i]["Subject"].ToString().Substring(0,8) + "…";
				}
			}
			pictureList.DataSource = pDs.Tables[0].DefaultView;
			pictureList.DataBind();
	
			//动态设置用户自定义文本内容
			pager.CustomInfoText="共"+pager.PageCount.ToString()+"页，当前为第"+pager.CurrentPageIndex.ToString()+"页";
		}

		protected void ChangePage(object src,PageChangedEventArgs e)
		{
			int BlogID = Convert.ToInt32(Page.Request.QueryString["BlogID"]);
			int CategoryID = Convert.ToInt32(Page.Request.QueryString["CategoryID"]);
			pager.CurrentPageIndex=e.NewPageIndex;
			BindData(BlogID,CategoryID);
		}


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

		}
		#endregion
	}
}