ASP.NET DropDownList SelectedIndex 属性

实例

下面的实例输出了被选项目的文本：

<script runat="Server">
 Sub GetName(obj As Object, e As EventArgs)
   lbl.Text = ddList.SelectedItem.Text
 End Sub
 </script>

 <form runat="Server">
 Select a name from the list:
 <asp:DropDownList id="ddList" runat="Server">
   <asp:ListItem Text="Peter" />
   <asp:ListItem Text="Lois" />
   <asp:ListItem Text="Cleveland" />
   <asp:ListItem Text="Quagmire" />
   <asp:ListItem Text="Joe" />
 </asp:DropDownList>

 <asp:Button Text="Select"
 OnClick="GetName" Runat="Server" />
 <br />
 Name is:
 <asp:Label id="lbl" Runat="Server"/>
 </form>