怎么后台添加CheckBoxList并且得到选择结果-.NET教程,Asp.Net开发

private void page_load(object sender, system.eventargs e)
  {
   checkboxlist cbl=new checkboxlist();
   cbl.id=”cbl”;
   cbl.items.add(new listitem(“1″,”1”));
   cbl.items.add(new listitem(“2″,”2”));
   cbl.items.add(new listitem(“3″,”3”));
   this.page.controls[1].controls.add(cbl);
   cbl.selectedindexchanged+= new system.eventhandler(this.checkboxlist1_selectedindexchanged);
   cbl.autopostback=true;
  }

private void checkboxlist1_selectedindexchanged(object sender, system.eventargs e)
  {
   response.write(“选中项的值：<br>”);
   foreach(listitem li in ((checkboxlist)sender).items)
   {
    if(li.selected)
    {
     response.write(li.value+”<br>”);
    }
   }
  }