我用HtmlTable 动态添加了DropDownList控件，请问怎样才能创建它的SelectedIndexChanged事件

[ww012]

还有怎样取得DropDownList的当前所选择的值
部分代码：
HtmlTableRow BenefitItemRow;
HtmlTableCell BenefitItemCell;
string html1= "<tr><td class="+"'table_item'"+"align="+"'right'"+"></td><td class="+"'table_value'"+">";
for(int i=AddItemNum*5+1;i<=(AddItemNum+1)*5;i++)
{
BenefitItemRow = new HtmlTableRow();
BenefitItemCell = new HtmlTableCell();
string strBenefitItemName = string.Format("ddlInterestedBenefitItem{0}",i);
string strBenefitItemNameEventName = strBenefitItemName+"_SelectedIndexChanged";
string strtxtAmount =string.Format("txtAmount{0}",i);
string strrevtxtAmount =string.Format("revtxtAmount{0}",i);
string htmlValidation="^(-?\\d{1,8})(\\.\\d{2})?$";
BenefitItemCell.InnerHtml = html1;

#region Bound DropDownList
DropDownList BenefitItem=new DropDownList();
BenefitItem.ID=strBenefitItemName;
BenefitItemCell.Controls.Add(BenefitItem);
..........

[TigerSuper]

select.SelectedIndexChanged += new System.EventHandler(函数);

[Eddie005]

private void Page_Load(object sender, System.EventArgs e)
{
// 在此处放置用户代码以初始化页面

// if(!Page.IsPostBack)
// {
DropDownList tmp = new DropDownList();
tmp.Items.Add("aaa");
tmp.Items.Add("bbb");
tmp.Items.Add("ccc");
tmp.SelectedIndexChanged+=new EventHandler(tmp_SelectedIndexChanged);
tmp.AutoPostBack = true;
Page.Controls[1].Controls.Add(tmp);
// }
}

private void tmp_SelectedIndexChanged(object sender, EventArgs e)
{
DropDownList ddl = sender as DropDownList;
this.TextBox2.Text = ddl.SelectedItem.Text;
}

[ww012]

谢谢 Eddie005() ，搞定了我立马给分^_^

[wokagoka]

BenefitItem.SelectValue

[ww012]

因为我是循环建立DropDownList ，我一次可能建了10个，那这个10个的事情这样好像不行的啊

[jimh]

private void tmp_SelectedIndexChanged(object sender, EventArgs e)
{
DropDownList ddl = sender as DropDownList;
this.TextBox2.Text = ddl.SelectedItem.Text;
}
根据sender.id 自己再判断一下是那一个就可以了，

[Eddie005]

楼上正解，它们可以触发同一个事件，只不过sender是不同的