ASP.NET中RadioButtonList绑定后台数据后触发点击事件

<asp:radiobuttonlist runat="server" id="radiobuttonlist1" borderstyle="none" repeatcolumns="3" cssclass=""
      repeatlayout="flow" autopostback="true" onselectedindexchanged="radiobuttonlist1_selectedindexchanged">
    </asp:radiobuttonlist>

namespace btapp
{
 public partial class technology : system.web.ui.page
 {
  string id;
  protected void page_load(object sender, eventargs e)
  {
   if (!ispostback)
   {
    aspnetpager1.pagesize = 10;
    if (request.querystring["id"] != null)
    {
     id = request.querystring["id"];
    }
    else
    { id = ""; }
    getdatabind(id);
    dropdownlistdatabind();
   }
  }
  //radiobuttonlist绑定后台数据
  private void dropdownlistdatabind()
  {
   expertinfobll bll = new expertinfobll();
   datatable dt = bll.getdepinfo();
   foreach (datarow dr in dt.rows)
   {
    radiobuttonlist1.items.add(dr["name"].tostring());//循环读出数据库的数据
    
   }
   this.radiobuttonlist1.datasource = dt;
   this.radiobuttonlist1.datatextfield = "name";
   this.radiobuttonlist1.datavaluefield = "id";
   this.radiobuttonlist1.repeatdirection = repeatdirection.horizontal;
   this.radiobuttonlist1.databind();
  
  }
  private void getdatabind(string id)
  {
   //这里写解码和数据库返回结果
   technologybll bll = new technologybll();
   string strwhere = " 1=1 ";
   if (id != "" && id != null)
   {
    strwhere += string.format(" and a.depinfo_id = '{0}'", id);
   }
   aspnetpager1.recordcount = bll.getcountlist(strwhere);
   //绑定数据 
   datatable dt = bll.getlist((aspnetpager1.currentpageindex - 1) * aspnetpager1.pagesize, aspnetpager1.pagesize, strwhere, "createtime");
   this.repeater1.datasource = dt;
   this.repeater1.databind();


  }
  protected void aspnetpager1_pagechanged(object sender, eventargs e)
  {
   getdatabind(id);
  }

//根据选择单选按钮的不同id,触发事件
  protected void radiobuttonlist1_selectedindexchanged(object sender, eventargs e)
  {
    string id;
    id = radiobuttonlist1.selectedvalue;
    getdatabind(id);
  }
  
 }
}

namespace btappbll
{
 public class technologybll
 {
  technologydal dal = new technologydal();
  public datatable getlist(int startpage, int pagesize, string where, string orderby)
  {


   datatable dtable = dal.getlist(startpage, pagesize, where, orderby);
   return dtable;
  }
  public int getcountlist(string where)
  {


   int record = dal.getcountlist(where);
   return record;
  }
  public datatable getlistshow(string technologyid)
  {
   datatable dtable = dal.getmodel(technologyid);
   return dtable;
  }
  public datatable getpicture(string technologyid)
  {
   datatable dtable = dal.getpicture(technologyid);
   return dtable;
  }
 }
}

namespace btappdal
{
 public class technologydal
 {
  public datatable getlist(int startpage, int pagesize, string where, string orderby)
  {
   string strsql = string.format("select a.technologyid,a.technologyname,a.summarize,a.effect,a.mainpoint,a.appropriatearea,a.attention,a.createtime,a.creatuser,a.updatetime,b.name from technology as a \n" +
    "left join sys_depinfo as b on a.depinfo_id=b.id \n" +
    "where a.isactive='1' and {0} ", where);


   string proc = "proc_commonpagerwithstatement";
   sqlconnection con = sqldbhelper.connection;
   sqlparameter[] sp = { new sqlparameter("@intstartindex", startpage), 
         new sqlparameter("@intpagesize", pagesize),
         new sqlparameter("@varstatement", strsql), 
         new sqlparameter("@varsortexpression", orderby+" desc") };
   datatable dt = sqldbhelper.getdataset(proc, sp, con);
   return dt;


  }
  public int getcountlist(string where)
  {
   int countrecord = 0;
   string strsql = string.format("select count(technologyid) as countrecord from(select a.technologyid,a.technologyname,a.summarize,a.effect,a.mainpoint,a.appropriatearea,a.attention,a.createtime,a.creatuser,a.updatetime,b.name from technology as a \n" +
    "left join sys_depinfo as b on a.depinfo_id=b.id \n" +
    "where a.isactive='1' and {0} ) as c", where);
   sqlconnection con = sqldbhelper.connection;
   try
   {
    if (con.state == system.data.connectionstate.closed)
     con.open();
    datatable dt = sqldbhelper.getdatatable(strsql);
    if (dt.rows.count > 0)
     countrecord = int.parse(dt.rows[0]["countrecord"].tostring());
   }
   catch (exception)
   {
    throw;
   }
   finally
   {
    if (con.state == connectionstate.open)
    {
     con.close();
    }
   }


   return countrecord;
  }
  public datatable getmodel(string technologyid)
  {
   string strsql = string.format("select a.technologyid,a.technologyname,a.summarize,a.effect,a.mainpoint,a.appropriatearea,a.attention,a.createtime,a.creatuser,a.updatetime,b.name from technology as a \n" +
    "left join sys_depinfo as b on a.depinfo_id=b.id \n" +
    "where a.isactive='1' and a.technologyid = '{0}' ", technologyid);


   datatable datatable = sqldbhelper.getdatatable(strsql);
   return datatable;
  }
  public datatable getpicture(string technologyid)
  {
   string strsql = string.format("select top 5 a.files_id,a.files_name,a.files_path from dbo.com_files as a \n" +
    "left join dbo.technology as b on a.foreignkey_id=b.technologyid \n" +
    "where b.isactive=1 and a.foreignkey_id = '{0}' ", technologyid);


   datatable datatable = sqldbhelper.getdatatable(strsql);
   return datatable;
  }
 }
}

 public datatable getdepinfo()
  {
   datatable dtable = dal.getdepinfo();
   return dtable;
  }

 public datatable getdepinfo()
  {
   try
   {
    stringbuilder str = new stringbuilder(@"select id,name from dbo.sys_depinfo where is_active='1' and depinfotype='1'");
    datatable data = sqldbhelper.getdatatable(str.tostring());
    if (data.rows.count > 0)
    {
     return data;
    }
    else
    {
     return null;
    }
   }
   catch (exception)
   {
    return null;
   }
  }

 protected void radiobuttonlist1_selectedindexchanged(object sender, eventargs e)
  {
    string id;
    id = radiobuttonlist1.selectedvalue;
    getdatabind(id);
  }