pwd.aspx.cs

这是一个ASP.NET和数据库的程序

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>
	/// pwd 的摘要说明。
	/// </summary>
	public class pwd : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.TextBox username;
		protected System.Web.UI.WebControls.TextBox userpwd;
		protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator1;
		protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator2;
		protected System.Web.UI.WebControls.Button Button1;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			if(Session["name"]==null||Session["name"].ToString()=="false")
			{
				Response.Redirect("fail.htm");
			}
			if(!this.IsPostBack)
			{
//				string dbPath=System.Configuration.ConfigurationSettings.AppSettings["lyb"];
//				//定义连接字符串
//				string ACconnStr="Provider=Microsoft.Jet.Sql.4.0;Data Source="+Server.MapPath(dbPath);
//				//创建数据库对像
//				SqlConnection con=new SqlConnection(ACconnStr);
				SqlConnection con=db.createconnection();
				con.Open();
				SqlCommand cmd=new SqlCommand("select * from admin",con);
				SqlDataReader sdr=cmd.ExecuteReader();
				while(sdr.Read())
				{
				   this.username.Text=sdr["username"].ToString();
					this.userpwd.Text=sdr["userpwd"].ToString();
				}
				sdr.Close();
				con.Close();
				
			}
		}

		#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.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void Button1_Click(object sender, System.EventArgs e)
		{
//			string dbPath=System.Configuration.ConfigurationSettings.AppSettings["lyb"];
//			//定义连接字符串
//			string ACconnStr="Provider=Microsoft.Jet.Sql.4.0;Data Source="+Server.MapPath(dbPath);
			//创建数据库对像
			SqlConnection con=db.createconnection();
			con.Open();
			SqlCommand cmd=new SqlCommand("update admin set username='"+this.username.Text+"',userpwd='"+this.userpwd.Text+"'",con);
			cmd.ExecuteNonQuery();
			Response.Write("<script>alert('修改成功');</script>");
			Response.Write("<script>history.go(-1);</script>");
			con.Close();
		}
	}
}