editjoin.aspx.cs

本目录提供了<<ASP.NET+SQL Server数据库开发与实例>>一书从第4到第11章实例的核心源程序、数据库文件。

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 meet
{
	/// <summary>
	/// editjoin 的摘要说明。
	/// </summary>
	public class editjoin : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.TextBox manufacturer;
		protected System.Web.UI.WebControls.RequiredFieldValidator Rfv_id;
		protected System.Web.UI.WebControls.TextBox name;
		protected System.Web.UI.WebControls.TextBox address;
		protected System.Web.UI.WebControls.TextBox tell;
		protected System.Web.UI.WebControls.TextBox num;
		protected System.Web.UI.WebControls.TextBox place;
		protected System.Web.UI.WebControls.Button Btn_ok;
		protected System.Web.UI.WebControls.Button Btn_cancel;
		protected System.Web.UI.WebControls.Label Lbl_note;
		SqlConnection cn;
		
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
			
			string id=Request.QueryString.Get("id");
			string strconn=ConfigurationSettings.AppSettings["ConnectionString"];		
			cn=new SqlConnection(strconn);	
			cn.Open();	
			string sSQL = "select manufacturer,name,address,tell,num,place from [join] where id="+id ;
			SqlCommand command = new SqlCommand(sSQL, cn);
			SqlDataReader reader=command.ExecuteReader(CommandBehavior.SingleRow);
			
			if (reader.Read()) 
			{
				manufacturer.Text = reader[0].ToString();	
				name.Text=reader[1].ToString();
				address.Text=reader[2].ToString();
				tell.Text=reader[3].ToString();
				num.Text=reader[4].ToString();
				place.Text=reader[5].ToString();
			} 
			else 
			{
				
			}
			reader.Close();
			cn.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.Btn_ok.Click += new System.EventHandler(this.Btn_ok_Click);
			this.Btn_cancel.Click += new System.EventHandler(this.Btn_cancel_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void Btn_ok_Click(object sender, System.EventArgs e)
		{
			
			string id=Request.QueryString.Get("id");
			string manufacturer=Request.Form.Get("manufacturer");
			string name=Request.Form.Get("name");
			string address=Request.Form.Get("address");
			string tell=Request.Form.Get("tell");
			string num=Request.Form.Get("num");
			string place=Request.Form.Get("place");

			string sSQL = "Update [join] set manufacturer='"+manufacturer+"',name='"+name+"',address='"+address+"',tell='"+tell+"',num='"+num+"',place='"+place+"' where id="+id;
//			SqlCommand command = new SqlCommand(sSQL, cn);
			
			
			
			SqlCommand cm=new SqlCommand(sSQL,cn);

			
			cm.Connection.Open();
			cm.ExecuteNonQuery();
			Page.Response.Redirect("joinedit.aspx");
			cm.Connection.Close();
			
		}

		private void Btn_cancel_Click(object sender, System.EventArgs e)
		{
			Page.Response.Redirect("joinedit.aspx");
		}
	}
}