admin登录.aspx.cs

数据库课程设计

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 mybook
{
	/// <summary>
	/// WebForm3 的摘要说明。
	/// </summary>
	public class WebForm3 : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.TextBox TextBox1;
		protected System.Web.UI.WebControls.TextBox TextBox2;
		protected System.Web.UI.WebControls.Button Button1;
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.WebControls.Label Label2;
		protected System.Web.UI.WebControls.Button Button2;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			if(!IsPostBack)//第一次进入网页时
			{
				string username=Request.QueryString["username"];
			
				string password=Request.QueryString["password"];
			
				TextBox1.Text=username;
				TextBox2.Text=password;
			}
		}

		private void Button1_Click(object sender, System.EventArgs e)
		{
			//使用command对象更新数据源
			string first=TextBox1.Text;
			string last=TextBox2.Text;
			string id=Request.QueryString["id"];
			SqlConnection myConnection = new SqlConnection();
			myConnection.ConnectionString = "uid=sa;pwd=sa;initial catalog=mybook;data source=localhost;Connect Timeout=90";
			myConnection.Open();
			string sql_edit = "UPDATE xyadmin " +
				"SET username = '" + first+ "'," +
				"password = '" + last + "'" +
				" WHERE id = '"+ id + "'" ;

			Response.Write(sql_edit);
			SqlCommand sqlCommandUpdate = new SqlCommand(sql_edit,myConnection);
			sqlCommandUpdate.ExecuteNonQuery();
			myConnection.Close();
			
			Response.Redirect("admin管理.aspx");
		}

		#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.Button2.Click += new System.EventHandler(this.Button2_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void Button2_Click(object sender, System.EventArgs e)
		{
			Response.Redirect("WebForm3.aspx");
		}
	}
}