newsmanager.aspx.cs

企业内部的短信交流管理平台。 设计详细

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 System.IO;

namespace Com.SMS.SMSUI
{
	/// <summary>
	/// NewsManager 的摘要说明。
	/// </summary>
	public class NewsManager : System.Web.UI.Page
	{
		protected MyControls.MyDataGrid mdgNews;
		protected System.Web.UI.HtmlControls.HtmlForm Form1;
		protected System.Web.UI.WebControls.Button Button1;

		Dal.NewsMake nm=new Com.SMS.Dal.NewsMake();
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
			if(Session["User"]==null)
			{
				Response.Write("<script>alert('对不起，你没有登录');location.href='Login.aspx';</script>");
			}

			JudgePopedom();

			if(!this.IsPostBack)
			{
				BindNews();
			}
		}

		void JudgePopedom()
		{
			Dal.PopedomMake pdm=new Com.SMS.Dal.PopedomMake();
			Dal.UserAndPopedomMake uapm=new Com.SMS.Dal.UserAndPopedomMake();
			Entity.Popedom pd=pdm.FindByPage("NewsManager.aspx");
			Entity.User us=(Entity.User)Session["User"];
			DataTable dt=uapm.FindByUser(us.UserId);
			string popedom="";

			try
			{
				popedom=dt.Rows[0][2].ToString();
			}
			catch(Exception)
			{
				Response.Redirect("SysMessages.aspx?message="+this.Server.UrlEncode("对不起，你权限不够!!!"), false);
			}
			
			if(popedom.IndexOf(pd.PdId.ToString())==-1)
			{
				Response.Redirect("SysMessages.aspx?message="+this.Server.UrlEncode("对不起，你权限不够!!!"), false);
			}
		}

		void BindNews()
		{
			DataTable dt=nm.FindAll();

			this.mdgNews.DataSource=dt;
			this.mdgNews.DataBind();
		}

		#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.mdgNews.ItemCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.mdgNews_ItemCommand);
			this.Button1.Click += new System.EventHandler(this.Button1_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void mdgNews_ItemCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
		{
			if(e.Item.ItemType==ListItemType.AlternatingItem || e.Item.ItemType==ListItemType.Item)
			{
				if(e.CommandName=="deletenews")
				{
					int newsid=Convert.ToInt32(this.mdgNews.DataKeys[e.Item.ItemIndex]);

					bool flag=nm.Delete(newsid);

					if(flag)
					{
						Response.Redirect("NewsManager.aspx",false);
					}else
						Response.Redirect("SysMessages.aspx?message="+this.Server.UrlEncode("删除失败!!!"), false);
				}
			}
		}

		private void Button1_Click(object sender, System.EventArgs e)
		{
			string[] files=Directory.GetFiles(Server.MapPath("NewsImages"));
			DataTable dtnews=nm.FindAll();
			for(int j=0;j<dtnews.Rows.Count;j++)
			{
				for(int i=0;i<files.Length;i++)
				{
					string aa=files[i];
					int st=aa.LastIndexOf("\\")+1;
					string name=aa.Substring(st);
					string file=dtnews.Rows[j][2].ToString();
					if(file.IndexOf(name)==-1)
					{
						File.Delete(Server.MapPath("NewsImages/"+name));
					}
				}
			}
		}
	}
}