What happen to the DetailView, oldValues and newValues are the same....

[LamSoft]

In the object of detailView, i added a function to check the values during itemUpdating, the source is:

protected void test2(object sender, DetailsViewUpdateEventArgs e)
{
foreach (System.Collections.DictionaryEntry o in e.OldValues)
{
Response.Write("Old Values:" + o.Key.ToString() + "==>" + o.Value + "<br/>");
}
foreach (System.Collections.DictionaryEntry o in e.NewValues)
{
Response.Write("New Values:" + o.Key.ToString() + "==>" + o.Value + "<br/>");
}
Response.End();
}

<aspetailsView ID="dv_ServerInformation" runat="server" AutoGenerateEditButton="True" AutoGenerateRows="False" DataSourceID="sDS_ServerInformation" Height="50px" Width="80%" OnItemUpdated="test" DataKeyNames="server_id" OnItemUpdating="test2">
<Fields>
<asp:BoundField DataField="serverip" HeaderText="Server IP" ReadOnly="True" SortExpression="serverip" />
<asp:BoundField DataField="location" HeaderText="Location" SortExpression="location" />
<asp:BoundField DataField="server_owner" HeaderText="Server Owner" SortExpression="server_owner" />
<asp:BoundField DataField="application" HeaderText="Server Application" SortExpression="application" />
<asp:BoundField DataField="backup_type" HeaderText="Backup Type" SortExpression="backup_type" />
<asp:BoundField DataField="remark" HeaderText="Remark" SortExpression="remark" />
<asp:BoundField DataField="server_id" HeaderText="server_id" SortExpression="server_id"
Visible="False" />
</Fields>
</aspetailsView>

While a user modify some values in the detailview and click update, the new values in the object "e" should be different from the old values, however the result is same.... which made me fail to update database (because old values and new values are the same, nothing updated...), is it a bug or anything i made wrong? Thanks

Old Values:serverip==>10.10.10.193
Old Values:location==>5555
Old Values:server_owner==>55555
Old Values:application==>55
Old Values:backup_type==>55555555
Old Values:remark==>555555
New Values:location==>5555
New Values:server_owner==>55555
New Values:application==>55
New Values:backup_type==>55555555
New Values:remark==>555555