Hi Alejandro,

I think you could acheive what you want using the OutlookGroupBy feature of the grid. You would simply group the grid by the "Type Col" column and this would create a sort've artificial hierarchy with two rows at the root level and then each parent row would have the "real" data rows as it's child rows. 

To do this in code, you would do something like this:

        private void ultraGrid1_InitializeLayout(object sender, Infragistics.Win.UltraWinGrid.InitializeLayoutEventArgs e)
        {
            UltraGridLayout layout = e.Layout;

            // Enabled OutlookGroupBy
            layout.ViewStyleBand = ViewStyleBand.OutlookGroupBy;

            // Hide the GroupByBox so the user cannot change the groupings. 
            layout.GroupByBox.Hidden = false;

            // Group by the Type Col column. 
            layout.Bands[0].SortedColumns.Add("Type Col", false, true);
        }

and here is the image of the grid that I want to have:

So if you see I have in the first image 5 rows of the same type "TAX" and what I want to show is just one row because is the same type "TAX" but in the column "Importe" (amount in english) is the sum of all the row amounts.

Hope this will clear my question.

Thanks for the support and wish you can help me to achieve this result.

Alejandro