protected void Page_Load(object sender, EventArgs e) {       .....    SqlDataReader dr1 = sqlcmd.ExecuteReader();    while (dr1.Read())   {//根據(jù)數(shù)據(jù)庫(kù)情況循環(huán)添加的radiobuttonlist ......      list.SelectedIndexChanged += new EventHandler      (list_SelectedIndexChanged);//注冊(cè)事件 }   //每個(gè)radiobuttonlist后面有一個(gè)textbox    } void list_SelectedIndexChanged(object sender, EventArgs e) {      if (list.SelectedValue.ToString().Trim() == "基本滿意" || list.SelectedValue.ToString().Trim() == "不滿意")   {         txt.Visible = true; //根據(jù)選擇的值,textbox是否顯示     }      else   {        txt.Visible = false;     } }現(xiàn)在的情況是每次點(diǎn)擊radiobuttonlist，只有最后一個(gè)radiobuttonlist旁邊的textbox會(huì)顯示。