Repeater嵌套绑定数据

private void RpTypeBind()
{//GetQuestionTypeAndCount() 返回一个datatable
this.rptypelist.DataSource = LiftQuestionCtr.GetQuestionTypeAndCount();
this.rptypelist.DataBind();
}
protected void rptypelist_ItemDataBound(object sender, RepeaterItemEventArgs e)
{

//判断里层repeater处于外层repeater的哪个位置（ AlternatingItemTemplate，FooterTemplate，

//HeaderTemplate，，ItemTemplate，SeparatorTemplate）
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
Repeater rep = e.Item.FindControl("rpquestionlist") as Repeater;//找到里层的repeater对象
DataRowView rowv = (DataRowView)e.Item.DataItem;//找到分类Repeater关联的数据项
int typeid = Convert.ToInt32(rowv["qtid"]); //获取填充子类的id
rep.DataSource = LiftQuestionCtr.GetSomeQuestionsByTypeid(typeid, 2);
rep.DataBind();
}
}