ASP.NET SelectedIndex 灞炴€?| 鑿滈笩鏁欑▼

<script runat="server">
Sub Change(obj As Object, e As EventArgs)
聽聽Response.Write("Selected index: " & rb1.SelectedIndex)
End Sub
</script>

<form runat=server>
<asp:RadioButtonList id="rb1" AutoPostBack="true"
runat="server" OnSelectedIndexChanged="Change">
聽聽<asp:ListItem Text="Item 1" />
聽聽<asp:ListItem Text="Item 2" />
</asp:RadioButtonList>
</form>