studentlogin.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 web
{
	/// <summary>
	/// studentLogin 的摘要说明。
	/// </summary>
	public class studentLogin : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Label lbl_ID;
		protected System.Web.UI.WebControls.TextBox txt_ID;
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.WebControls.TextBox txt_Name;
		protected System.Web.UI.WebControls.Button btn_OK;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			// 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.btn_OK.Click += new System.EventHandler(this.btn_OK_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void btn_OK_Click(object sender, System.EventArgs e)
		{
			string id = txt_ID.Text;
			string pwd = txt_Name.Text;

			SqlConnection conn = new SqlConnection("User ID=sa;Initial Catalog=data;Data Source=USER10");
			conn.Open();

			SqlDataAdapter sda = new SqlDataAdapter();
			sda.SelectCommand = new SqlCommand("select pwd from login where tid = '"+id+"'", conn);
			DataSet ds = new DataSet();
			sda.Fill(ds, "stuLogin"); 
			
			if (pwd.Trim() == Convert.ToString(ds.Tables["stuLogin"].Rows[0][0]).Trim())
			{
				Response.Redirect("studentMain.aspx");
			}
		}
	}
}