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.Configuration;
using System.Data.SqlClient;
namespace Mirror.AutoWeb.HelpCSharp
{
 /// <summary>
 /// StudyDataReader 的摘要说明。
 /// </summary>
 public class StudyDataReader : System.Web.UI.Page
 {
  protected System.Web.UI.WebControls.Literal Literal1;
  protected System.Web.UI.WebControls.Literal Literal2;
  private readonly string connstr = ConfigurationSettings.AppSettings["MySQLConnString1"].ToString();
  private void Page_Load(object sender, System.EventArgs e)
  {
   if(!Page.IsPostBack)
   {
    this.Literal2.Text = FormatDataReader(ExecuteReader());
   }
  }
  private string FormatDataReader(SqlDataReader datareader)
  {
   string readerString = "";
   while(datareader.Read())
   {
    readerString += "au_id=" + datareader["au_id"].ToString() + "";
    readerString += "au_lname=" + datareader["au_lname"].ToString() + "";
    readerString += "<br>";
   }
   datareader.Close();
   return readerString;
  }
  private SqlDataReader ExecuteReader()
  {
   string cmdText= " Select * From authors";
   SqlConnection myconn = new SqlConnection(connstr);
   SqlCommand mycmd = new SqlCommand(cmdText,myconn);
   myconn.Open();
   SqlDataReader dr = mycmd.ExecuteReader(CommandBehavior.CloseConnection);
   return dr;
  }
  #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.Load += new System.EventHandler(this.Page_Load);

  }
  #endregion
 }
}