I have an Ultrawebgrid, below, that is dynamically loads the grid once during initial page_load, but not on postback. Somewhere I must have changed something because it no longer sorts client-side. Any ideas why it won't sort anymore, I don't rebind it, but I didn't think you had to do that with this grid. It is inside an ajax Update Panel which is inside of the TabPanel of a TabContainer.

<igtbl:UltraWebGrid ID="igDataAll" runat="server" DisplayLayout-AutoGenerateColumns="true"
EnableAppStyling="True" StyleSetName="Office2007Blue" StyleSetPath="~/ig_res/"
DisplayLayout-CellPaddingDefault="5" DisplayLayout-Pager-AllowPaging="true" DisplayLayout-Pager-PageSize="100"
DisplayLayout-Pager-PagerAppearance="Both" Height="350px" Width="100%" DisplayLayout-AllowSortingDefault="Yes">
<Bands>
<igtbl:UltraGridBand>
<AddNewRow View="NotSet" Visible="NotSet">
</AddNewRow>
</igtbl:UltraGridBand>
</Bands>
<DisplayLayout BorderCollapseDefault="Separate" CellPaddingDefault="5" Name="igDATAAll"
RowHeightDefault="20px" Version="4.00" HeaderClickActionDefault="SortSingle">
<FrameStyle>
</FrameStyle>
<Pager Alignment="Left" AllowPaging="True" PagerAppearance="Both" PageSize="100"
QuickPages="3" StyleMode="Numeric" MinimumPagesForDisplay="2">
<PagerStyle HorizontalAlign="Left" VerticalAlign="Middle" />
<ComboStyle HorizontalAlign="Left" VerticalAlign="Middle">
</ComboStyle>
</Pager>
<ActivationObject BorderColor="" BorderWidth="">
</ActivationObject>
</DisplayLayout>
</igtbl:UltraWebGrid>