placard.aspx.cs

前台：asp.net；后台: sql server 一个功能完善的BBS系统源码。

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 Stella.BusinessLogic;
using Stella.Model;
using Stella.Web.ProcessFlow;
using Stella.Utility;
using System.Security.Permissions;

namespace Stella.Web.admin
{
	/// <summary>
	/// placard 的摘要说明。
	/// </summary>
	[PrincipalPermission(SecurityAction.Demand,Role="adminer")]
	public class placard : PageBase
	{
		protected System.Web.UI.WebControls.Button Button1;
		protected System.Web.UI.WebControls.DataGrid cards;
		protected System.Web.UI.WebControls.Button Button2;
		protected Stella.Web.Controls.PlacardBox box;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			if(!this.IsPostBack)
			{
				setUp();
			}
		}

		#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.Button1.Click += new System.EventHandler(this.Button1_Click);
			this.Button2.Click += new System.EventHandler(this.Button2_Click);
			this.cards.UpdateCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.cards_UpdateCommand);
			this.cards.DeleteCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.cards_DeleteCommand);
			this.cards.ItemDataBound += new System.Web.UI.WebControls.DataGridItemEventHandler(this.cards_ItemDataBound);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void setUp()
		{
			CacheController cc=new CacheController();
			PlacardList list=cc.GetCachedPlacardList();		
			this.cards.DataSource=list.Placards;
			this.cards.DataBind();
		}

		private void cards_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
		{
			if(e.Item.ItemType==ListItemType.Item || e.Item.ItemType==ListItemType.AlternatingItem)
			{
				LinkButton del=(LinkButton)e.Item.FindControl("del");
				del.Attributes.Add("onclick","javascript:return confirm('确认要删除吗？')");
			}
		}

		private void cards_DeleteCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
		{
			this.placardLogic.Remove(int.Parse(e.Item.Cells[0].Text));
			setUp();
		
		}

		private void Button1_Click(object sender, System.EventArgs e)
		{
			this.box.Visible=true;
			this.Button2.Visible=true;
			this.box.IsEditMode=false;
		}

		private void Button2_Click(object sender, System.EventArgs e)
		{
			if(!this.IsRefresh)
			{
				if(box.IsEditMode)
					this.placardLogic.Update(this.box.Card);
				else
					this.placardLogic.Create(this.box.Card);
				this.box.Visible=false;
				this.Button2.Visible=false;
				Response.Redirect("placard.aspx");
			}
		}

		private void cards_UpdateCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
		{
			this.box.Visible=true;
			this.Button2.Visible=true;
			CacheController cc=new CacheController();
			PlacardList list=cc.GetCachedPlacardList();	
			foreach(Placard card in list.Placards)
			{
				if(card.Pid==int.Parse(e.Item.Cells[0].Text))
				{
					box.Card=card;
					break;
				}
			}
		}
	}
}