Backup1/guestbook_del.aspx.cs

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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.SqlClient;
using System.Configuration;
namespace baogelyb
{
	/// <summary>
	/// guestbook_del 的摘要说明。
	/// </summary>
	public class guestbook_del : System.Web.UI.Page
	{
		private void Page_Load(object sender, System.EventArgs e)
		{
			if(Session["name"]==null||Session["name"].ToString()=="false")
			{
				Response.Redirect("fail.htm");
			}

			//取得需删除记录的ID
			string ID=Request.QueryString["id"];
			int CID=Convert.ToInt32(ID.Trim());
			//取得数据库路径
//			string dbPath=System.Configuration.ConfigurationSettings.AppSettings["lyb"];
//			//定义数据库连接字符串
//			string ACconnStr="Provider=Microsoft.Jet.Sql.4.0;Data Source="+Server.MapPath(dbPath);
			//创建数据库连接对象
			SqlConnection ACconn=db.createconnection();
			//操作数据库
			try
			{
				//打开数据库
				ACconn.Open();
				//定义SQL语句
				string ACsql="delete from lyb where id="+CID;
				//定义Command对像
				SqlCommand ACcomm=new SqlCommand(ACsql,ACconn);
				//执行SQL
				ACcomm.ExecuteNonQuery();


				Response.Write("<script>alert('删除成功');</script>");
				Response.Write("<script>history.go(-1);</script>");

			}
			catch(Exception ex)
			{
				Response.Write(ex.ToString());
			}
			finally
			{
				ACconn.Close();
			}