浜嬩欢鏄敤浜庡搷搴旂敤鎴峰湪Dropdownlist鎺т欢涓€夋嫨鎴栨洿鏀归€夐」鐨勬搷浣滅殑銆?涓嬮潰鏄叧浜庤繖涓や釜浜嬩欢鐨勮鏄庯細

1. onTextChanged浜嬩欢锛氬綋鐢ㄦ埛鍦―ropdownlist涓緭鍏ユ垨閫夋嫨涓€涓柊鐨勬枃鏈€兼椂瑙﹀彂銆傝繖涓簨浠堕€氬父鐢ㄤ簬瀹炴椂鏇存柊涓庢墍閫夋枃鏈浉鍏崇殑鍐呭銆備緥濡傦紝褰撶敤鎴峰湪Dropdownlist涓緭鍏ュ煄甯傚悕绉版椂锛屽彲浠ヤ娇鐢╫nTextChanged浜嬩欢鍦ㄨ緭鍏ユ湡闂存樉绀哄尮閰嶇殑鍩庡競鍚嶇О鍒楄〃銆?/p>

2. onSelectedIndexChanged浜嬩欢锛氬綋鐢ㄦ埛鍦―ropdownlist涓€夋嫨涓€涓笉鍚岀殑閫夐」鏃惰Е鍙戙€傝繖涓簨浠堕€氬父鐢ㄤ簬鍦ㄧ敤鎴烽€夋嫨涓€涓柊閫夐」鍚庢墽琛岀壒瀹氱殑鎿嶄綔銆備緥濡傦紝褰撶敤鎴峰湪Dropdownlist涓€夋嫨涓€涓笉鍚岀殑鍥藉鏃讹紝鍙互浣跨敤onSelectedIndexChanged浜嬩欢瑙﹀彂涓€涓煡璇㈡搷浣滄潵鑾峰彇涓庢墍閫夊浗瀹剁浉鍏崇殑鏁版嵁銆?/p>

杩欎袱涓簨浠跺彲浠ュ湪鍓嶇浠ｇ爜涓娇鐢紝閫氳繃缁戝畾鐩稿簲鐨勫鐞嗙▼搴忓嚱鏁版潵瀹氫箟浜嬩欢瑙﹀彂鏃堕渶瑕佹墽琛岀殑鎿嶄綔銆備緥濡傦紝鍦ˋSP.NET涓紝鍙互浣跨敤浠ヤ笅鏂瑰紡瀹氫箟杩欎袱涓簨浠剁殑澶勭悊绋嬪簭鍑芥暟锛?/p>

protected void dropdownlist1_TextChanged(object sender, EventArgs e)
{
   // 澶勭悊onTextChanged浜嬩欢鐨勪唬鐮?/span>
}

protected void dropdownlist1_SelectedIndexChanged(object sender, EventArgs e)
{
   // 澶勭悊onSelectedIndexChanged浜嬩欢鐨勪唬鐮?/span>
}

鍦ㄥ墠绔唬鐮佷腑锛屽彲浠ヤ娇鐢ㄤ互涓嬫柟寮忕粦瀹氳繖涓や釜浜嬩欢鐨勫鐞嗙▼搴忓嚱鏁帮細

<asp:DropDownList ID="dropdownlist1" runat="server" OnTextChanged="dropdownlist1_TextChanged" OnSelectedIndexChanged="dropdownlist1_SelectedIndexChanged"></asp:DropDownList>