itembussiness.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;

/// <summary>
/// 关于栏目的业务层操作
/// </summary>
public class ItemBussiness
{
 BBSTableTableAdapters.ItemTableAdapter itemTable;
 public ItemBussiness()
 {
  itemTable = new BBSTableTableAdapters.ItemTableAdapter();
 }
 /// <summary>
 /// 获取一级栏目列表
 /// </summary>
 /// <returns>一级栏目列表</returns>
 public DataTable GetRootItem()
 {
  return itemTable.GetRootItem();
 }
 /// <summary>
 /// 根据父栏目ID获取栏目列表
 /// </summary>
 /// <param name="pItemID">栏目ID</param>
 /// <returns>栏目列表</returns>
 public DataTable GetItemByParentID(int pParentID)
 {
  return itemTable.GetItemByParentID(pParentID);
 }
 /// <summary>
 /// 根据栏目ID获取栏目详情
 /// </summary>
 /// <returns>是否有该ID的栏目存在</returns>
 public bool GetItemByItemID(ref ItemEntity pItem)
 {
  DataTable item = itemTable.GetItemByID(pItem.ItemID);
  if (item.Rows.Count != 0)
  {
   pItem.ItemIntro = item.Rows[0]["ItemIntro"].ToString();
   pItem.ItemName = item.Rows[0]["ItemName"].ToString();
   if (!Convert.IsDBNull(item.Rows[0]["ParentID"]))
   {
    pItem.ParentID = Convert.ToInt32(item.Rows[0]["ParentID"]);
   }
   return true;
  }
  else
   return false;
 }
 /// <summary>
 /// 添加栏目
 /// </summary>
 /// <param name="pItem">栏目实体</param>
 public void AddItem(ItemEntity pItem)
 {
  itemTable.AddItem(pItem.ItemName, pItem.ItemIntro, pItem.ParentID);
 }
 /// <summary>
 /// 根据ID删除栏目
 /// </summary>
 /// <param name="pItemID">栏目ID</param>
 public void DeleteItemByID(int pItemID)
 {
  itemTable.DeleteItemByID(pItemID);
 }
 /// <summary>
 /// 修改栏目名称、介绍
 /// </summary>
 /// <param name="pItem">栏目实体</param>
 public void ModifyItem(ItemEntity pItem)
 {
  itemTable.ModifyItemByID(pItem.ItemName, pItem.ItemIntro, pItem.ItemID);
 }
 /// <summary>
 /// 判断指定ID栏目是否一级栏目
 /// </summary>
 /// <param name="pItemID">栏目ID</param>
 /// <returns>true是；false否</returns>
 public bool IsRootItem(int pItemID)
 {
  if (itemTable.IsRootItem(pItemID) == null)
   return false;
  else
   return true;
 }
}