Hello, ­­­­­

I am just checking about the progress of this issue. Let me know If you need any further assistance on this  issue?

Thank you for using Infragistics Components.

1) The best thing to do would be to sort your data source before binding the grid - assuming your data source has support for sorting. Then you never have to use the grid's sorting capabilities at all. 

If you want to sort columns in the grid, then you simply add those columns to the SortedColumns collection.

        private void ultraGrid1_InitializeLayout(object sender, Infragistics.Win.UltraWinGrid.InitializeLayoutEventArgs e)
        {
            UltraGridLayout layout = e.Layout;
            UltraGridBand band = layout.Bands[0];
            UltraGridOverride ov = layout.Override;

            band.SortedColumns.Add("Date", false);
            band.SortedColumns.Add("Time", false);

            ov.HeaderClickAction = HeaderClickAction.Select;
        }

To prevent the user from changing the sort order, set the HeaderClickAction to something other than sort.

2) Turn off the fixed header indicators using the FixedHeaderIndicator property.

        private void ultraGrid1_InitializeLayout(object sender, Infragistics.Win.UltraWinGrid.InitializeLayoutEventArgs e)
        {
            UltraGridLayout layout = e.Layout;
            UltraGridBand band = layout.Bands[0];
            UltraGridOverride ov = layout.Override;

            band.SortedColumns.Add("DateTime 1", false);
            band.SortedColumns.Add("DateTime 2", false);

            // This is not really neccessary, since Select is the default. 

            layout.UseFixedHeaders = true;
            ov.FixedHeaderIndicator = FixedHeaderIndicator.None;
        }