/*IDataReader dr=myAdoHelper.FillComboBox (provinceid );
comboCity.DataSource =dr;
comboCity.DisplayMember="city_name";
comboCity.ValueMember="city_id";*/
comboCity.DataSource =dr;
comboCity.DisplayMember="city_name";
comboCity.ValueMember="city_id";*/
用DataReader做数据源,只能用循环绑定。
WEBFORM中这样是可以的,WINFORM却不行!晕啊!