SelectedValue in dropdownlist - invalid item but no exception

[John]

If you set DropDownList.SelectedValue to an item not in the list, shouldn't
an exception be thrown? ie:

<aspropDownList ID="DropDownList1" runat="server">
<asp:ListItem Text="1" Value="1"></asp:ListItem>
<asp:ListItem Text="2" Value="2"></asp:ListItem>
<asp:ListItem Text="3" Value="3"></asp:ListItem>
</aspropDownList>

Then in the codebehind:

DropDownList1.SelectedValue = "999";

No exception is thrown, but the docs say:

"The SelectedValue property can also be used to select an item in the list
control by setting it with the value of the item. If no items in the list
control contain the specified value, a System.ArgumentOutOfRangeException is
thrown."

XP Pro sp2. ASP.NET 2.0 (VS2005 Team Edition for Soft Devs). C# 2.0. All the
latest updates.

Thanks,

John

 

[John]

PS. I have the June 06 CTP of Atlas installed (but the problem also occurs
in apps that don't use Atlas)