modify_teacher.aspx.cs

本文介绍了在Visual Studio.net环境下开发一个教材库管理系统的过程。创建了一套行之有效的方案。文章介绍了管理系统的系统分析部分

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 jiaocaiku
{
	/// <summary>
	/// modify_teacher 的摘要说明。
	/// </summary>
	public class modify_teacher : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.TextBox t1;
		protected System.Web.UI.WebControls.TextBox p;
		protected System.Web.UI.WebControls.TextBox p1;
		protected System.Web.UI.WebControls.TextBox p2;
		protected System.Web.UI.WebControls.TextBox kcid;
		protected System.Web.UI.WebControls.TextBox phone;
		protected System.Web.UI.WebControls.TextBox email;
		protected System.Web.UI.WebControls.Button ok_modify;
		protected System.Web.UI.WebControls.Button cancel_modify;

		string yp;
		string strid;


	
		private void Page_Load(object sender, System.EventArgs e)
		{
			if(!Page.IsPostBack)
			{
				if (Session["username"]==null)
				{
					Response.Redirect("default.aspx");

				}
				else
				{
					t1.Text=Session["username"].ToString();

					SqlConnection conn=new SqlConnection(ConfigurationSettings.AppSettings["connstr"].ToString());
					conn.Open();
					SqlCommand cmd=new SqlCommand("select * from teacher where teacherid='"+ Session["username"].ToString() +"'",conn);
					SqlDataReader dr=cmd.ExecuteReader();
					if (dr.Read())
					{
						kcid.Text=dr["kcid"].ToString();
						phone.Text=dr["phone"].ToString();
						email.Text=dr["email"].ToString();
						strid=dr["id"].ToString();


						
					}
					conn.Close();
					dr.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.ok_modify.Click += new System.EventHandler(this.ok_modify_Click);
			this.cancel_modify.Click += new System.EventHandler(this.cancel_modify_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void ok_modify_Click(object sender, System.EventArgs e)
		{
			
			SqlConnection conn=new SqlConnection(ConfigurationSettings.AppSettings["connstr"].ToString());
			conn.Open();
			SqlCommand cmd=new SqlCommand("select * from teacher where teacherid='"+ Session["username"].ToString() +"'",conn);
			SqlDataReader dr=cmd.ExecuteReader();
			if (dr.Read())
			{
				yp=dr["password"].ToString();
				if (p.Text.ToString()!=yp)
				{
					Response.Write("<script>alert('原密码错误！');</script>");

				}
				else
				{
					dr.Close();					
                    cmd.CommandText="update teacher set password='"+p1.Text.ToString()+"',phone='"+phone.Text.ToString()+"',email='"+email.Text.ToString()+"' where teacherid='"+Session["username"].ToString()+"'";
					cmd.ExecuteNonQuery();
					conn.Close();



Response.Write("<script>alert('修改个人资料成功！');</script>");
				}


						
			}
		
		}

		private void cancel_modify_Click(object sender, System.EventArgs e)
		{
			p.Text="";
			p1.Text="";
			p2.Text="";
			phone.Text="";
			email.Text="";

			
		}
	}
}