ASP.NET SelectedIndexProperty
ListControl Control Reference Manual
Definition and Usage
The SelectedIndex property represents the ordinal index of the selected item in the list.
Example
The following example gets the index of a ListItem in the RadioButtonList control:
<script runat="server">
Sub Change(obj As Object, e As EventArgs)
Response.Write("Selected index: " & rb1.SelectedIndex)
End Sub
</script>
<form runat=server>
<asp:RadioButtonList id="rb1" AutoPostBack="true"
runat="server" OnSelectedIndexChanged="Change">
<asp:ListItem Text="Item 1" />
<asp:ListItem Text="Item 2" />
</asp:RadioButtonList>
</form>
Sub Change(obj As Object, e As EventArgs)
Response.Write("Selected index: " & rb1.SelectedIndex)
End Sub
</script>
<form runat=server>
<asp:RadioButtonList id="rb1" AutoPostBack="true"
runat="server" OnSelectedIndexChanged="Change">
<asp:ListItem Text="Item 1" />
<asp:ListItem Text="Item 2" />
</asp:RadioButtonList>
</form>
Show Example »
ListControl Control Reference Manual Other Extensions