listcategories.aspx.cs

这个是网上相册系统的一个架构设计说明

using System;
using System.Collections;
using System.ComponentModel;
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 Utils;
using Model;

namespace AlbumOL
{
	/// <summary>
	/// ListCategories 的摘要说明。
	/// </summary>
	public class ListCategories : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Panel p1;
		protected System.Web.UI.WebControls.Label lbAlias;
		protected System.Web.UI.WebControls.DataList lstCategories;
		protected System.Web.UI.WebControls.Button btnAddNewCat;
		protected System.Web.UI.WebControls.TextBox tbCatName;
		protected System.Web.UI.WebControls.Panel pWelcome;
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.WebControls.Label Label2;
		protected System.Web.UI.WebControls.HyperLink HyperLink2;
	
		private DataTable _dataSrc;
		private void Page_Load(object sender, System.EventArgs e)
		{
			WebUtils.CheckUser();
			lbAlias.Text = (User as MyPrincipal).Name;
		}

		#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.btnAddNewCat.Click += new System.EventHandler(this.btnAddNewCat_Click);
			this.Load += new System.EventHandler(this.Page_Load);
			this.PreRender += new System.EventHandler(this.ListCategories_PreRender);

		}
		#endregion

		private void ListCategories_PreRender(object sender, System.EventArgs e)
		{
			MyPrincipal prcpl = this.User as MyPrincipal;
			Hashtable queryParam = new Hashtable();
			queryParam.Add("OwnerID", prcpl.UserID);
			IModel model = new CategoryModel();
			DataTable dt = model.Query(queryParam);
			lstCategories.DataSource = _dataSrc = dt;
			DataBind();
		}

		private void btnAddNewCat_Click(object sender, System.EventArgs e)
		{
			MyPrincipal prcpl = this.User as MyPrincipal;
			Hashtable queryParam = new Hashtable();
			queryParam.Add("OwnerID", prcpl.UserID);

			Model.Model model = new CategoryModel();
			DSPhoto ds = model.DataSet as DSPhoto;
			ds.Category.AddCategoryRow(tbCatName.Text.Trim(), prcpl.UserID);
			model.Save(ds);
		}

		public DataTable DataSource
		{
			get
			{
				return _dataSrc;
			}
		}
	}
}