class_wenti.aspx.cs

利用远程控制进行上课

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 free
{
	/// <summary>
	/// Summary description for class_wenti.
	/// </summary>
	public class class_wenti : System.Web.UI.Page
	{
		protected System.Data.SqlClient.SqlConnection myconn;
		protected System.Data.SqlClient.SqlCommand mycomm;
		protected System.Web.UI.HtmlControls.HtmlTable jiaocheng;
		protected string sqlstr;	
	
		protected void DataBind1()
		{
			
			SqlDataAdapter mydada;
			mydada=new SqlDataAdapter(sqlstr,myconn);
			DataTable mytable;
			mytable=new DataTable();
			mydada.Fill(mytable);
			mytable.TableName="wenti";
			myconn.Close();
			HtmlTableRow myrow;
			HtmlTableCell mycell;
			if(mytable.Rows.Count>0)
			{
				for(int i=0;i<=mytable.Rows.Count-1;i++)
				{
					myrow=new HtmlTableRow();
					mycell=new HtmlTableCell();
					mycell.Align="center";
					mycell.Height="20px";
					mycell.Controls.Add(new LiteralControl (mytable.Rows[i]["id"].ToString()));
					myrow.Cells.Add(mycell);
					//2
					mycell=new HtmlTableCell();
					mycell.Controls.Add(new LiteralControl ("<a href='class_neirong.aspx?jiaocheng_id="+Request.Params["jiaocheng_id"]+"&amp;wenti_id="+mytable.Rows[i]["id"].ToString()+"'>"+mytable.Rows[i]["neirong"].ToString()+"</a>"));
					myrow.Cells.Add(mycell);
					jiaocheng.Rows.Add(myrow);

				}
			}
		}	
		private void Page_Load(object sender, System.EventArgs e)
		{
			string jiaocheng_id=Request.Params["jiaocheng_id"];
			myconn=new SqlConnection(Session["str_connection"].ToString());
            //
			myconn.Open();
			sqlstr="SELECT shuming FROM class_jiaocheng WHERE (id = "+jiaocheng_id+") ";
			mycomm=new SqlCommand(sqlstr,myconn);
			if(mycomm.ExecuteScalar()!=null)
			{
				Session["shuming"]=mycomm.ExecuteScalar().ToString();
			}
			try
			{
				string sql="select sign from class_student_buybook where stu_name='"+Request.Cookies["free_xueyuan"].Value.ToString()+"'and book_id="+jiaocheng_id+"";
				mycomm=new SqlCommand(sql,myconn);
				SqlDataReader myread=mycomm.ExecuteReader();
				if(myread.Read())
				{
					if(myread["sign"].ToString()=="1")
					{
						sqlstr="SELECT   id,neirong FROM class_wenti WHERE (jiaocheng_id = "+jiaocheng_id+") ORDER BY id";
						myread.Close();
						DataBind1();
					}
					else
					{
						sqlstr="SELECT  top 10 id,neirong FROM class_wenti WHERE (jiaocheng_id = "+jiaocheng_id+") ORDER BY id";
						myread.Close();
						DataBind1();
					}
					
				}
				else
				{
					sqlstr="SELECT  top 10 id,neirong FROM class_wenti WHERE (jiaocheng_id = "+jiaocheng_id+") ORDER BY id";
					myread.Close();
					DataBind1();
				}
			}
			catch
			{
				sqlstr="SELECT  top 10 id,neirong FROM class_wenti WHERE (jiaocheng_id = "+jiaocheng_id+") ORDER BY id";
				DataBind1();
			}
			myconn.Close();
		}

		#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.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion
	}
}