[求助]请高手来帮忙看看是怎么回事(在线等待)

“/”应用程序中的服务器错误。

未将对象引用设置到对象的实例。

说明: 执行当前 Web 请求期间，出现未处理的异常。请检查堆栈跟踪信息，以了解有关该错误以及代码中导致错误的出处的详细信息。

异常详细信息: System.NullReferenceException: 未将对象引用设置到对象的实例。

源错误:

[NullReferenceException: 未将对象引用设置到对象的实例。]
   MagicAjax.AjaxCallHelper.GetPageHiddenDictionary(Page page, String fieldName) +34
   MagicAjax.AjaxCallHelper.Page_PreRender(Object sender, EventArgs e) +245
   System.Web.UI.Control.OnPreRender(EventArgs e) +2117788
   System.Web.UI.Control.PreRenderRecursiveInternal() +86
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2041

版本信息: Microsoft .NET Framework 版本:2.0.50727.1433; ASP.NET 版本:2.0.50727.1433

CS源文:

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.IO;
using System.Data.OleDb;
namespace mzg
{
 /// <summary>
 /// data_show 的摘要说明。
 /// </summary>
 public class data_show : System.Web.UI.Page
 {
  int pageSize,recordCount,pageCount,currentPage;
  protected System.Web.UI.WebControls.DataList dl_show;
  protected System.Web.UI.HtmlControls.HtmlForm Form1;
  protected System.Web.UI.WebControls.Repeater rp_count;
  protected string webname;
  protected string description;
  protected string keywords;
  protected DbSql sql=new DbSql();
  protected Common cn=new Common();
  protected System.Web.UI.WebControls.DropDownList dlsPageIndex;
  protected System.Web.UI.WebControls.LinkButton butPrev;
  protected System.Web.UI.WebControls.LinkButton btnNext;
  protected MagicAjax.UI.Controls.AjaxPanel Panel;
  protected MagicAjax.UI.Controls.AjaxPanel Panel2;
  protected DataSet ds=new DataSet();
  //protected mzg.control.page page=new mzg.control.page();
  private void Page_Load(object sender, System.EventArgs e)
  {
   pageSize=9;
   if(!Page.IsPostBack)
   {
    page();
    showcount();
    web();
    BindData();
   }
  }
  private void web()
  {
   try
   {
    ds=sql.RunSql_DataSet("select webname,M_keywords,M_description from lacus_system where id=1");
    webname=ds.Tables[0].Rows[0]["webname"].ToString();
    description=ds.Tables[0].Rows[0]["M_description"].ToString();
    keywords=ds.Tables[0].Rows[0]["M_keywords"].ToString();
   }
   catch
   {
    Response.Redirect("500.html");
   }
  }
  private void showcount()
  {
   try
   {
    ds=sql.RunSql_DataSet("select top 10 tvname,tvcount,id from tvindexs order by tvcount desc");
    this.rp_count.DataSource=ds;
    this.rp_count.DataBind();
   }
   catch
   {
    Response.Redirect("500.html");
   }
  }
  public void BindData()
  {
   try
   {
    int startPage;
    startPage = currentPage * pageSize;
 
    OleDbParameter[] parameter={new OleDbParameter("@id",OleDbType.Integer,5)};
    parameter[0].Value=cn.NoHTML(cn.ReplaceBadChar(Request.QueryString["id"]));
    ds=sql.RunSql_DataSet(parameter,"select id,idd,pname,pimage,psex,pheight,page,pxue,psy,psanwei,pbrithday,ptizhong,pxingzuo,pborn,plikething,plinkpeople,pmouth,punlike,pmiaoshu,pmiaoshu,inlikepeople,inlikething,inmouth,inunlike from tvpage where idd=@id",startPage,pageSize);
    dl_show.DataSource = ds;
    dl_show.DataBind();
    dlsPageIndex.SelectedIndex = currentPage;
   // page.Allpage=3;
   // page.Pagecount=2;
   // page.Pagesize=5; 
   }
   catch
   {
    Response.Redirect("500.html");
   }
  }
  #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.butPrev.Click += new System.EventHandler(this.butPrev_Click);
   this.btnNext.Click += new System.EventHandler(this.btnNext_Click);
   this.dlsPageIndex.SelectedIndexChanged += new System.EventHandler(this.dlsPageIndex_SelectedIndexChanged);
   this.Load += new System.EventHandler(this.Page_Load);

  }
  #endregion

  //各种验证是否为空
  public string c_age(object age)
  {
   if(age.ToString()!="0")
   {
    return "年龄："+age+"<br />";
   }
   else
   {
    return null;
   }
  }
  //声优
  public string c_sy(object sy)
  {
   if(sy.ToString()!="null")
   {
    return "声优："+sy+"<br />";
   }
   else
   {
    return null;
   }
  }
  //身高
  public string c_height(object height)
  {
   if(height.ToString()!="0")
   {
    return "身高："+height+"<br />";
   }
   else
   {
    return null;
   }
  }
  //三围
  public string c_sanwei(object sanwei)
  {
   if(sanwei.ToString()!="0")
   {
    return "三围："+sanwei+"<br />";
   }
   else
   {
    return null;
   }
  }
  //星座
  public string c_xingzuo(object xingzuo)
  {
   if(xingzuo.ToString()!="null")
   {
    return "星座："+xingzuo+"<br />";
   }
   else
   {
    return null;
   }
  }
  //体重
  public string c_tizhong(object tizhong)
  {
   if(tizhong.ToString()!="0")
   {
    return "体重："+tizhong+"<br />";
   }
   else
   {
    return null;
   }
  }
  //生日
  public string c_brithday(object brithday)
  {
   if(brithday.ToString()!="0")
   {
    return "生日："+brithday+"<br />";
   }
   else
   {
    return null;
   }
  }
  //血型
  public string c_xue(object xue)
  {
   if(xue.ToString()!="null")
   {
    return "血型："+xue+"<br />";
   }
   else
   {
    return null;
   }
  }
  //出生地
  public string c_born(object born)
  {
   if(born.ToString()!="null")
   {
    return "出生地："+born+"<br />";
   }
   else
   {
    return null;
   }
  }
  //喜欢的东西
  public string c_like(object inlike,object plike)
  {
   if(plike.ToString()!="null" )
   {
    return inlike+":"+plike+"<br />";
   }
   else
   {
    return null;
   }
  }
  //不喜欢的东西
 
  public string c_unlike(object inunlike,object punlike)
  {
   if(punlike.ToString()!="null" )
   {
    return inunlike+":"+punlike+"<br />";
   }
   else
   {
    return null;
   }
  }
  //口头禅
 
  public string c_mouth(object inmouth,object pmouth)
  {
   if(pmouth.ToString()!="null" )
   {
    return inmouth+":"+pmouth;
   }
   else
   {
    return null;
   }
  }
  //描述
  public string c_jianjie(object jianjie)
  {
   if(jianjie.ToString()!="")
   {
    return "简介："+jianjie;
   }
   else
   {
    return null;
   }
  }
  //头像
  public string c_head(object head)
  {
   if(head.ToString()!="null" &&  File.Exists(Server.MapPath(".")+"/head/"+head))
   {
   //return Server.MapPath(".")+"/head/"+head;
   return "<IMG   src=head/"+head+" width=''96'' height=''121'' >";
   }
   else
   {
    return "<IMG   src=head/null.gif>";
   }
  }

  private void butPrev_Click(object sender, System.EventArgs e)
  {
   currentPage = (int)ViewState["CurrentPage"];
   pageCount = (int)ViewState["PageCount"];
   recordCount = (int)ViewState["RecordCount"];
   if(currentPage>0)
    currentPage--;
   ViewState["CurrentPage"] = currentPage;
   BindData();
  }

  private void btnNext_Click(object sender, System.EventArgs e)
  {
   currentPage = (int)ViewState["CurrentPage"];
   pageCount = (int)ViewState["PageCount"];
   recordCount = (int)ViewState["RecordCount"];
   if(currentPage<pageCount)
    currentPage++;
   ViewState["CurrentPage"] = currentPage;
   BindData();
  }

  private void dlsPageIndex_SelectedIndexChanged(object sender, System.EventArgs e)
  {
   currentPage = (int)ViewState["CurrentPage"];
   pageCount = (int)ViewState["PageCount"];
   recordCount = (int)ViewState["RecordCount"];
   currentPage = int.Parse(dlsPageIndex.SelectedItem.Value);
   ViewState["CurrentPage"] = currentPage;
   BindData();
  }
  private void page()
  {
   string id=cn.NoHTML(cn.ReplaceBadChar(Request.QueryString["id"]));
   if(!cn.IsNumeric(id))
   {
    Response.Redirect("500.html");
   }
   OleDbParameter[] parameter={new OleDbParameter("@id",OleDbType.Integer,5)};
   parameter[0].Value=id;
   currentPage = 0; // 初始化当前页为第0页
   ViewState["CurrentPage"] = 0;
   recordCount = sql.counts(parameter," Select count(*) as Total from tvpage where idd=@id"); // 计算共有多少条记录
   ViewState["RecordCount"] = recordCount;

   pageCount = recordCount / pageSize; // 计算共有多少页
   ViewState["PageCount"] = pageCount;