ASP.Net DropDownList绑定树状结构

foreach(ModelInfoIteminlistSource)

{

if(Item.ParentID==0)

{

ListItemli=newListItem();

li.Text=Item.Item;

li.Value=Item.ID.ToString();

YouDropDownList.Items.Add(li);

BindDDLData(YouDropDownList,listSource,Item,"├à─¤─¤");

}

}

privatevoidBindDDLData(DropDownListDdl,List<ModelInfo>List,ModelInfoCurrentInfo,stringseparator)

{

varquer=(fromcinList

wherec.ParentID==CurrentInfo.ID

selectc);

foreach(variteminquer)

{

ListItemli=newListItem();

li.Text=separator+item.Item;

li.Value=item.ID.ToString();

Ddl.Items.Add(li);

stringseparator_=separator+"─¤─¤─¤";

BindDDLData(Ddl,List,item,separator_);

}

}