login.aspx.cs

毕业设计——在线视频点播系统 内容很全

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 gllbysj
{
	/// <summary>
	/// login 的摘要说明。
	/// </summary>
	public class login : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Panel Panel3;
		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.WebControls.HyperLink HyperLink1;
		protected System.Web.UI.WebControls.DataGrid DataGrid1;
		protected System.Web.UI.WebControls.Panel Panel1;
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.WebControls.LinkButton LinkButton1;
		protected System.Web.UI.WebControls.Label Label2;
		protected System.Web.UI.WebControls.HyperLink HyperLink2;
		protected System.Web.UI.WebControls.HyperLink HyperLink3;
		protected System.Web.UI.WebControls.Panel Panel2;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
			SqlConnection con=db.createcon();
			con.Open();
			SqlDataAdapter sda=new SqlDataAdapter();
			DataSet ds=new DataSet();
			sda.SelectCommand=new SqlCommand("select top 10 id,name from mess order by hits desc",con);
			sda.Fill(ds);
			this.DataGrid1.DataSource=ds;
			this.DataGrid1.DataBind();
			con.Close();
            SqlConnection cn=db.createcon();
			cn.Open();
			SqlCommand cm=new SqlCommand("select leftmess from publ where id=1",cn);
			SqlDataReader sdr=cm.ExecuteReader();
			sdr.Read();
			this.Label2.Text="★★"+sdr["leftmess"].ToString();
			cn.Close();


						
     

		}
		public bool login1()
		{
			SqlConnection cnn=db.createcon();
			cnn.Open();
			string st="select id,issuper from user1 where name='"+this.TextBox1.Text+"' and password='"+this.TextBox2.Text+"'";
			SqlCommand cmd=new SqlCommand(st,cnn);
			SqlDataReader reader=cmd.ExecuteReader();
			if(reader.Read())
			{
			//	Session["username"]=name;
				//Session["issuper"]=reader["issuper"].ToString();
				 Session["issuper"]=reader["issuper"].ToString();
				return true;
				cnn.Close();
			
			}
			else
			{
				return false;
				cnn.Close();
			}
			



		}

		#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.LinkButton1.Click += new System.EventHandler(this.LinkButton1_Click);
			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)
		{
		//SqlConnection cn=db.createcon();
		 string name=this.TextBox1.Text;
		 string psd=this.TextBox2.Text;
			if(this.login1())
			{
				Session["name"]=name;
				// Session["issuper"]=reader["issuper"].ToString();
				this.Panel3.Visible=false;
				this.Panel2.Visible=true;
				//Response.Write("<script language=javascript>alert('登陆成功')</script>");
			//	Response.Write(Session["issuper"]);
				//int a=Convert.ToInt32(Session["issuper"]);
				this.Label1.Text="欢迎："+Session["name"];
				this.LinkButton1.Visible=true;
				string st=Convert.ToString(Session["issuper"]);
				if(st=="True")
			    {
					Session["gl"]="1";
					
			  	}
				if(Session["gl"]=="1")
				{
					Response.Redirect("managerleft.aspx");

				}

			}
			else
			{
				//Response.Write("<script language=javascript>alert('用户名或密码错误')</script>");
				this.Label1.Text="登陆失败!";
			}
			//this.Panel3.Visible=false;
			//this.Panel2.Visible=true;

		
		}

		private void LinkButton1_Click(object sender, System.EventArgs e)
		{
			Session["name"]=null;
			this.Label1.Text="用户尚末登陆";
			this.LinkButton1.Visible=false;
			this.Panel2.Visible=false;
			this.Panel3.Visible=true;

			Response.Write("<script language='javascript'>top.location='index.htm'</script>");


		}

	}
}