ListControlBinding

 /// <summary>
 /// ListControlBinding 针对ListControl（DropDownList, CheckBoxList, RadioButtonList）的绑定提供简化的操作
 /// </summary>
internal class ListControlBinding
 {
  internal static void BindObjectToListControl(ICollection objList, ListControl control , string textProperty , string valueProperty)
  {
   if( objList != null && control != null )
   {
    control.DataSource = objList ;
    control.DataTextField = textProperty ;
    control.DataValueField = valueProperty ;
    control.DataBind() ;
   }
  }

  internal static void SetListControlDefaultValue(ListControl control,string defaultValue)
  {
   if( control == null ) return ;
   ListItem item = null ;
   try
   { //根据使用经验，有时候可能会产生异常
    item = control.Items.FindByValue(defaultValue) ;
   }
   catch {}

   if( item != null ) item.Selected = true ;
  }

  internal static void InsertItemToListControl(int index ,ListControl control,string itemText , string itemValue)
  {
   if( control == null ) return ;
   ListItem item = new ListItem(itemText,itemValue) ;
   control.Items.Insert(index,item) ;
  }
 }