newsitem.cs

ASP.NET 2.0动态网站设计实例源代码,本书介绍了ASP.NET2.0的基础知识

using System;
using System.Data;
using System.Configuration;
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.IO;

/// <summary>
/// Summary description for NewsItem
/// </summary>
public class eNewsItem
{
 #region 属性
 public int NewsItemID;
 public string NewsItemName;
 public string NewsItemEName;
 public bool NewsShowAtHome;
 public DateTime NewsItemCreateDate;
 //私有成员
 NewsDataTableAdapters.ItemTableAdapter tbaItem;
#endregion
 public eNewsItem()
 {
  NewsItemID = -1;
  NewsItemName = null;
  NewsItemEName = null;
  NewsShowAtHome = false;
  NewsItemCreateDate = DateTime.MinValue;
  tbaItem = new NewsDataTableAdapters.ItemTableAdapter();
 }

 public eNewsItem(int pintNewsItemID)
 {
  tbaItem = new NewsDataTableAdapters.ItemTableAdapter();
  GetItemByID(pintNewsItemID);
 }
 /// <summary>
 /// 根据栏目ID获取栏目内容
 /// </summary>
 public void GetItemByID(int pintNewsItemID)
 {
  DataTable dtTemp = tbaItem.GetItemByID(pintNewsItemID);
  NewsItemID = pintNewsItemID;
  NewsItemName = dtTemp.Rows[0]["NewsItemName"].ToString();
  NewsItemEName = dtTemp.Rows[0]["NewsItemEName"].ToString();
  NewsShowAtHome = Convert.ToBoolean(dtTemp.Rows[0]["NewsShowAtHome"]);
  NewsItemCreateDate = Convert.ToDateTime(dtTemp.Rows[0]["NewsItemCreateDate"]);
 }
 /// <summary>
 /// 获取栏目列表
 /// </summary>
 public DataTable GetAllItem()
 {
  return tbaItem.GetAllItem();
 }
 /// <summary>
 /// 添加栏目
 /// </summary>
 public string AddItem(string pstrNewsItemName, string pstrNewsItemEName, bool pblnShowAtHome, string strAppPath)
 {
  string strResult = null;
  if (!System.IO.Directory.Exists(strAppPath + pstrNewsItemEName))
   try
   {
    System.IO.Directory.CreateDirectory(strAppPath + pstrNewsItemEName);
   }
   catch (UnauthorizedAccessException)
   {
    strResult = "无权限";
   }
   catch (ArgumentException)
   {
    strResult = "文件名不合法";
   }
   catch (PathTooLongException)
   {
    strResult = "文件名太长";
   }
  tbaItem.AddItem(pstrNewsItemName, pstrNewsItemEName, Convert.ToInt32(pblnShowAtHome));
  return strResult;
 }
 /// <summary>
 /// 根据ID删除栏目内容
 /// </summary>
 public void DeleteItemByID(int NewsItemID)
 {
  GetItemByID(NewsItemID);
  eSystemSetting esys = new eSystemSetting();
  esys.SettingKey = "PhysicalPath";
  string physicalPath = esys.GetValueByKey();
  string itemDirectory = physicalPath + @"\" + NewsItemEName;
  if (DeleteItemDirectory(itemDirectory) == null)
  {
   tbaItem.DeleteItem(NewsItemID);
  }
 }
 /// <summary>
 /// 根据路径名删除栏目路径
 /// </summary>
 public string DeleteItemDirectory(string strItemPath)
 {
  string strResult = null;
  if (Directory.Exists(strItemPath))
  {
   try
   {
    Directory.Delete(strItemPath, true);
   }
   catch (IOException )
   {
    strResult = "文件夹是只读";
   }
   catch (UnauthorizedAccessException )
   {
    strResult = "你没有权限对该文件夹进行操作";
   }
  }
  return strResult;
 }
 /// <summary>
 /// 获取首页栏目列表
 /// </summary>
 public DataTable GetHomeItem()
 {
  return tbaItem.GetHomeItem();

 }
 /// <summary>
 /// 设置栏目信息
 /// </summary>
 public void SetItemInfo(int pintItemID,string pstrItemName,bool pblnShowAtHome)
 {
  tbaItem.SetItemInfo(pintItemID, pstrItemName, NewsItemEName, Convert.ToInt16(pblnShowAtHome));
 }
 /// <summary>
 /// 指定ID栏目是否存在
 /// </summary>
 public bool IsItemIDExist(int pintItemID)
 {
  if (tbaItem.GetItemByID(pintItemID).Rows.Count==0)
   return false;
  else
   return true;
 }
 /// <summary>
 /// 指定名称栏目是否存在
 /// </summary>
 public bool IsItemNameExist(string pstrItemName)
 {
  if (tbaItem.GetItemByName(pstrItemName).Rows.Count == 0)
   return false;
  else
   return true;
 }
 /// <summary>
 /// 指定缩写的栏目是否存在
 /// </summary>
 public bool IsItemENameExist(string pstrItemEName)
 {
  if (tbaItem.GetItemByEName(pstrItemEName).Rows.Count == 0)
   return false;
  else
   return true;
 }
}