car_pass.aspx.cs

这个是用C#做底层开发车辆管理系统

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;
namespace car1
{
	/// <summary>
	/// car_pass 的摘要说明。
	/// </summary>
	public class car_pass : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.WebControls.Label Label2;
		protected System.Web.UI.WebControls.Label Label3;
		protected System.Web.UI.WebControls.TextBox TextBox1;
		protected System.Web.UI.WebControls.TextBox TextBox2;
		protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator1;
		protected System.Web.UI.WebControls.CompareValidator CompareValidator1;
		protected System.Web.UI.WebControls.Button Button1;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			
			if(Session["S_username"].ToString()=="")
			{
				Response.Redirect("index.aspx");
			}
			if(!Page.IsPostBack)
			{
			string uname=Session["S_username"].ToString();
				this.Label3.Text=uname;
				string SqlConn=System.Configuration.ConfigurationSettings.AppSettings["ConnString"];
				SqlConnection Conn=new SqlConnection(SqlConn);
				Conn.Open();
				string SqlStr1="select name from [user] where username='"+uname+"'";
				SqlCommand Comm=new SqlCommand(SqlStr1,Conn);
				SqlDataReader read=Comm.ExecuteReader();
				if(read.Read())
				{
					this.Label2.Text=read["name"].ToString();
					read.Close();
					Conn.Close();
				}
				
			}// 在此处放置用户代码以初始化页面
		}

		#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 Button2_Click(object sender, System.EventArgs e)
		{
			Response.Redirect("welcome.aspx");
		}

		private void Button1_Click(object sender, System.EventArgs e)
		{
			string uname=Session["S_username"].ToString();
			string SqlConn=System.Configuration.ConfigurationSettings.AppSettings["ConnString"];
			SqlConnection Conn=new SqlConnection(SqlConn);
			Conn.Open();
			string SqlStr2="update [user] set userpwd='"+this.TextBox1.Text+"' where username='"+uname+"'";
			SqlCommand Comm=new SqlCommand(SqlStr2,Conn);
			SqlDataReader read=Comm.ExecuteReader();
			
			this.Label1.Text="修改密码成功！";
				this.TextBox1.Text="";
				this.TextBox2.Text="";
				read.Close();
				Conn.Close();
			
		}
	}
}