Repeater中DropDownList赋值 

protected void RptList_ItemDataBound(object sender, RepeaterItemEventArgs e) {
   if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)                 {
                       DropDownList ddlstate = (DropDownList)e.Item.FindControl("RptList_ddl_tmp1") as DropDownList;                     DataRowView view = (DataRowView)e.Item.DataItem;                     ddlstate.SelectedValue = view.Row["Temp1"].ToString();                 } }

触发Repeater中DropDownList的SelectedIndexChanged的事件并获取该行的数据

public void RptList_ddl_tmp1_SelectedIndexChanged(object sender, EventArgs e)         {
                  DropDownList drop = sender as DropDownList; //获取当前选中的DropDownList                 Repeater repS = drop.Parent.Parent as Repeater; //drop的上一级的上一级控件就是Repeater控件                 int n = ((RepeaterItem)drop.Parent).ItemIndex; //获取当前选中行的索引 //获取其他信息进行操作                 HtmlInputText xuefen = (HtmlInputText)(repS.Items[n].FindControl("txtXuefen")); string id = ((HiddenField)(repS.Items[n].FindControl("hid_id"))).Value;    ｝