userlogin.aspx.cs

This is not a very mean things

//-----------------------------------------------------------------------
//
// WebExpert.NET 1.0 
//
// (c) 2003, www.AspCool.com. All rights reserved.
// ASP酷技术网 版权所有
//
// 该源码下载自：http://www.51aspx.com
// 邮箱：[e-mail]
//
// 版权声明：本程序仅供学习使用，你也可以修改后在网站上使用，但使用时必
// 须保留ASP酷技术网(www.AspCool.com)的版权信息和链接。本程序随《ASP.NET
// 网站建设专家》一书赠送，未经作者同意，不得随意修改、传播。
//
// 描述:
//   此文件包含下面的类：
//       UserLogin
//
// 作者:     王保健
// 时间:     2005-01-15
//
//------------------------------------------------------------------------
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;

namespace AspCool.WebExpert
{
	/// <summary>
	/// Summary description for UserLogin.
	/// </summary>
	public class UserLogin : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Label lblError;
		protected System.Web.UI.WebControls.Button btnLogin;
		protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator2;
		protected System.Web.UI.WebControls.TextBox txtPassword;
		protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator1;
		protected System.Web.UI.WebControls.TextBox txtUserName;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			// Put user code to initialize the page here
		}

		#region Web Form Designer generated code
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: This call is required by the ASP.NET Web Form Designer.
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{    
			this.btnLogin.Click += new System.EventHandler(this.btnLogin_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void btnLogin_Click(object sender, System.EventArgs e)
		{
			UsersDB user = new UsersDB();
			string username = user.UserLogin(txtUserName.Text,txtPassword.Text);
			if (username.Length==0)
			{
				lblError.Visible =true;		
			}
			else
			{
				Session["UserName"] = txtUserName.Text;
				if (Request["returnURL"] == null)
				{
					Response.Redirect("~/News/news.aspx");
				}
				else
				{
					Response.Redirect(Request["returnURL"]);
				}
			}
		}
	}
}