login.ascx.cs

酒店管理系统

namespace hotel.Continer
{
	using System;
	using System.Data;
	using System.Drawing;
	using System.Web;
	using System.Web.UI.WebControls;
	using System.Web.UI.HtmlControls;
	using System.Data.SqlClient;

	/// <summary>
	///		login 的摘要说明。
	/// </summary>
	public class login : System.Web.UI.UserControl
	{
		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.Button Button2;

		private void Page_Load(object sender, System.EventArgs e)
		{
			if(!this.Page.IsPostBack)
			{
				this.TextBox1.Text="";
				this.TextBox2.Text="";
			}
			// 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.Button2.Click += new System.EventHandler(this.Button2_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		public bool isnull(string name,string pwd)
		{
			SqlConnection con=DB.createCon();
			con.Open();

			SqlCommand cmd=new SqlCommand("select * from users",con);
			SqlDataReader red=cmd.ExecuteReader();
			while(red.Read())
			{
				if(name==red["name"].ToString() && pwd==red["password"].ToString())
				{
					return true;
				}
			}
			return false;
		}
		private void Button1_Click(object sender, System.EventArgs e)
		{
			string name,pwd;
			name=this.TextBox1.Text;
			pwd=this.TextBox2.Text;

				 if(isnull(name,pwd))
				 {
					 Session["username"]=name;
					Response.Redirect("default.aspx?id={0}");

				 }
				else
				{
					Response.Write("<script language=javascript>alert('对不起,你输入的密码不正确！');</script>");
					this.TextBox1.Text="";
					this.TextBox2.Text="";
				}
		}

		private void Button2_Click(object sender, System.EventArgs e)
		{
			Response.Redirect("register1.aspx");

		}
	}
}