login.aspx.cs

四库全书新闻发布系统源码

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 _lib.CMS
{
	/// <summary>
	/// login 的摘要说明。
	/// </summary>
	/// download from www.51aspx.com(５１ａｓｐｘ．ｃｏｍ)
	public class login : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.RequiredFieldValidator Requiredfieldvalidator3;
		protected System.Web.UI.WebControls.Label Label3;
		protected System.Web.UI.WebControls.TextBox TextBox1;
		protected System.Web.UI.WebControls.TextBox TextBox2;
		protected System.Web.UI.WebControls.ImageButton ImageButton1;
		protected System.Web.UI.HtmlControls.HtmlInputHidden txtID;
		protected System.Web.UI.WebControls.RequiredFieldValidator Requiredfieldvalidator4;

		private void Page_Load(object sender, System.EventArgs e)
		{
			if (this.Request.QueryString["logout"]=="true")
			{
				// 退出登录状态
				Session.Clear();
				Response.Redirect("../");
				Response.End();
			}

			TCmsUser oUser = new TCmsUser(this);
			if (!IsPostBack)
			{
				if (oUser.isNull)
				{
					Label3.Text = "请登录：";
				}
				else
				{
					Label3.Text = "<font color=red>您无权访问该功能，请重新登录。</font>";
				}
			}
		}

		#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.ImageButton1.Click += new System.Web.UI.ImageClickEventHandler(this.ImageButton1_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void ImageButton1_Click(object sender, System.Web.UI.ImageClickEventArgs e)
		{
			bool isValid = TCmsUser.CheckLogin(TextBox1.Text,TextBox2.Text,this);
			Uri url;
			//string domain;
			if (this.ViewState["dUrl"]==null)
			{
				url = Request.UrlReferrer;
				this.ViewState["dUrl"] = url;
			}
			else
			{
				url = (Uri)this.ViewState["dUrl"];
			}

			if (isValid)
			{
				Response.Redirect(url.ToString());
				Response.End();
			}
			else
			{
				Label3.Text = "<font color=red>用户名或密码错误，登录失败。</font>";
			}
		}
	}
}