请问DropDownList和RadioButtonList控件当选择的值发生变化的时候触发什么事件？

Question

seletedIndexChanged()事件，注意要将控件的AutoPostBack属性设为true

Answer 1

private void RadioButtonList1_SelectedIndexChanged(object sender, System.EventArgs e)
{

} private void DropDownList1_SelectedIndexChanged(object sender, System.EventArgs e)
{

}

Answer 2

DropDownList:  SelectedIndexChanged
参考：ms-help://MS.VSCC/MS.MSDNVS.2052/Vbcon/html/vbtskRespondingToChangesInListBoxWebControl.htmRadioButtonList： 同上