.net编程

开发平台：
C#

edit_articleto.aspx.cs：源码内容
							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.Data.OleDb;
using System.Configuration;
using System.Text;
using System.Web.Security;
using System.Security.Cryptography;
namespace kuangren
{
	/// <summary>
	/// edit_articleto 的摘要说明。
	/// </summary>
	public class edit_articleto : System.Web.UI.Page
	{
		public string usercookies;
		protected int intRunTime;
		protected DateTime dtStartTime = DateTime.Now; 
		protected System.Data.OleDb.OleDbConnection conn;
		protected System.Data.OleDb.OleDbCommand cmd;
		protected System.Data.OleDb.OleDbCommand cmd5;
		protected string OleDbforum3;
		public    DataSet dsPending;
		public    DataSet dsuser;
		public    DataSet dsPending1;
		protected int powerjudge;
		protected int usergrade;
		protected string powername;
		protected int powergrade;
		public    string sql;
		public    string sql1;
		protected string updatecontent;
		protected string judgeupdater;
		public int userjudge2;	
		public int userjudge3;
		public string f3id;
		private void Page_Load(object sender, System.EventArgs e)
		{
			if (Request.Cookies["jusername"]!=null)
			{
				usercookies=Request.Cookies["jusername"].Value;
			}
			else
			{
				Response.Redirect("logine.aspx");				
			}	
			f3id=Convert.ToString(Request.Form["f3_id"]);
			string str=""+Request.Form["subject"]+"";
			string str1=""+Request.Form["content"]+"";
			userjudge2=System.Text.Encoding.Default.GetByteCount(str);
			userjudge3=System.Text.Encoding.Default.GetByteCount(str1);
			if  (userjudge2>50||userjudge2==0||userjudge3>16240||userjudge3==0)
			{
				Response.Redirect("announcerror.aspx");
			}
			conn = new OleDbConnection(ConfigurationSettings.AppSettings["cnFriends.ConnectionString"]);		
			//搜索主题信息
			sql="SELECT f3_motif,f3_content,f3_name,f3_sy  FROM forum_3  WHERE f3_id ="+Request.Form["f3_id"]+"";
			dsPending=new DataSet();
			OleDbDataAdapter adWord=new OleDbDataAdapter(sql,conn);
			adWord.Fill(dsPending,"forum_3");
			Page.DataBind();
			//判断是否为该主题所属论坛斑竹
			powerjudge=Convert.ToInt32(dsPending.Tables[0].Rows[0]["f3_sy"]);
			powername=Convert.ToString(dsPending.Tables[0].Rows[0]["f3_name"]);
			dsuser=new DataSet();
			cmd=new OleDbCommand("select umf2_id from user_f2 where umf2_id="+powerjudge+" and um_name='"+Request.Cookies["jusername"].Value+"'",conn);
			OleDbDataReader objDataReader ;
			cmd.Connection.Open();
			//搜索该主题发帖人信息，判断斑竹或管理员是否有权限修改[剑气潇潇为超级用户]
			sql1="SELECT u_grade,u_user from userinfo  WHERE u_user ='"+powername+"'";
			dsPending1=new DataSet();
			OleDbDataAdapter adWord1=new OleDbDataAdapter(sql1,conn);
			adWord1.Fill(dsPending1,"userinfo");
			Page.DataBind();			
			string usergrade=Convert.ToString(dsPending1.Tables[0].Rows[0]["u_grade"]);
			powergrade=Convert.ToInt32(usergrade);
			objDataReader = cmd.ExecuteReader();
			//judgepower	
			if (powername!=Request.Cookies["jusername"].Value)
			{
				if ((objDataReader.Read() != true) &&Convert.ToString(Request.Cookies["jpower"].Value)!="1")
				{
					Response.Redirect("power_error.aspx");
				}
				if(powergrade<=Convert.ToInt32(Request.Cookies["jpower"].Value)&&Convert.ToString(Request.Cookies["jusername"].Value)!="剑气潇潇")
				{
					Response.Redirect("power_error.aspx");
				}
				}
			cmd.Connection.Close();
			//end	
			//执行修改
			//判断修改帖子者
			if (powername!=Request.Cookies["jusername"].Value)
			{
				if (Convert.ToInt32(Request.Cookies["jpower"].Value)==1)
				{judgeupdater="管理员";}
				if (Convert.ToInt32(Request.Cookies["jpower"].Value)==2)
				{judgeupdater="版主";}
			}
			else
			{
				judgeupdater="作者";
			}
			updatecontent=Request.Form["content"]+"[color=#FF0000]——该主题被"+judgeupdater+"于"+DateTime.Now+"修改过[/color]";
			OleDbforum3="update [forum_3]  SET f3_motif='"+Request.Form["subject"]+"',f3_content='"+updatecontent+"',f3_face='"+Request.Form["f3_face"]+"',f3_now='"+DateTime.Now+"' where f3_id="+Request.Form["f3_id"]+""; 		        
			cmd5=new OleDbCommand(OleDbforum3,conn);
			conn.Open();
			bool doredirect=true;
			try
			{				
				cmd5.ExecuteNonQuery();
			}
			catch
			{
				doredirect=false;			
			}
			finally
			{
				conn.Close();
			}
			if(doredirect)
			{			
				
			}
			else
			{
				Response.Redirect("index.aspx");
			}
			//执行结束
		}
		#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.Load += new System.EventHandler(this.Page_Load);
		}
		#endregion
	}
}

						