Thanks a lot, this is exactly what I need!  :)

Hi Yael,

Oh, okay, I get it now.

What you need is a MergedCellEvaluator on Column B that tells it to only merge the cells if both columns A and B are a match.

        private void ultraGrid1_InitializeLayout(object sender, Infragistics.Win.UltraWinGrid.InitializeLayoutEventArgs e)
        {
            //// MERGED CELL FUNCTIONALITY RELATED ULTRAGRID SETTINGS
            //// ------------------------------------------------------------------------
            // Set the merged cell style to the OnlyWhenSorted.
            e.Layout.Override.MergedCellStyle = MergedCellStyle.OnlyWhenSorted;
            e.Layout.Override.MergedCellContentArea = MergedCellContentArea.VisibleRect;
            e.Layout.Override.HeaderClickAction = HeaderClickAction.SortMulti;
            // ------------------------------------------------------------------------

            e.Layout.Bands[0].SortedColumns.Add("A", false);
            e.Layout.Bands[0].SortedColumns.Add("B", false);
            e.Layout.Bands[0].SortedColumns.Add("C", false);

            e.Layout.Bands[0].Columns["A"].Hidden = true;
            e.Layout.Bands[0].Columns["B"].MergedCellEvaluator = new MyMergedCellEvaluator();
        }

        public class MyMergedCellEvaluator : IMergedCellEvaluator
        {
            bool IMergedCellEvaluator.ShouldCellsBeMerged(UltraGridRow row1, UltraGridRow row2, UltraGridColumn column)
            {
                string b1 = row1.GetCellText(column);
                string b2 = row1.GetCellText(column);

                string a1 = row1.GetCellText(column.Band.Columns["A"]);
                string a2 = row2.GetCellText(column.Band.Columns["A"]);

                return (string.Compare(b1, b2) == 0) &&
                    (string.Compare(a1, a2) == 0);
            }
        }

Hi,

I will give an example:

I have 3 columns in the dataSource: A, B, C.

I wrote this:

void grdGrades_InitializeLayout(object sender, InitializeLayoutEventArgs e)
{
//// MERGED CELL FUNCTIONALITY RELATED ULTRAGRID SETTINGS
//// ------------------------------------------------------------------------
// Set the merged cell style to the OnlyWhenSorted.
e.Layout.Override.MergedCellStyle = MergedCellStyle.OnlyWhenSorted;
e.Layout.Override.MergedCellContentArea = MergedCellContentArea.VisibleRect;
e.Layout.Override.HeaderClickAction = HeaderClickAction.SortMulti;
// ------------------------------------------------------------------------

e.Layout.Bands[0].SortedColumns.Add("A", false);
e.Layout.Bands[0].SortedColumns.Add("B", false);
e.Layout.Bands[0].SortedColumns.Add("C", false);
}

So if I have this data:

row 1: aaa, bbb, ccc

row 2: aaa, bbb, c

row 3: a, bbb, cc

In the grid, it will be displayed like this:

I don't want to display column A, but I still want that columns B and C will be affected by it.

so I want that even when column A is hidden, the grid will look like this:

Please help me to find a solution.

Thanks,
Yael