Here you go. The up arrow navigation seems to work just fine. One other thing: I can't get the active cell appearance to clear from the old row cell nor does it appear in the new row. The row is surrounded by a border when I just want the same cell different row to be activated.   

     private void ugGrid_BeforePerformAction(object sender, BeforeUltraGridPerformActionEventArgs e)    

     {    

                if (e.UltraGridAction == UltraGridAction.AboveCell || e.UltraGridAction == UltraGridAction.BelowCell)

                {

                      UltraGridCell cell = this.ugGrid.ActiveCell;

                      int index = cell.Column.Index;            

                      this.ugGrid.PerformAction(UltraGridAction.DeactivateCell);                

                      e.Cancel = true;

                     switch (e.UltraGridAction)      

                    {  

                       case UltraGridAction.BelowCell:

                            if (cell.Row.HasChild())            

                            {

                                this.ugGrid.PerformAction(UltraGridAction.NextRow);   

                           }

                          else if (cell.Row.HasNextSibling(true))   

                          {  

                               this.ugGrid.PerformAction(UltraGridAction.NextRowByTab);     

                          }                             this.ugGrid.ActiveCell = this.ugGrid.ActiveRow.Cells[index];      

                         break;

                         case UltraGridAction.AboveCell:

                            if (cell.Row.HasPrevSibling(true))  

                           {                            

                                 this.ugGrid.PerformAction(UltraGridAction.PrevRowByTab);        

                           }                         

                          else if (cell.Row.HasParent())          

                          {                        

                                this.ugGrid.PerformAction(UltraGridAction.PrevRow);    

                          }                       

                          this.ugGrid.ActiveCell = this.ugGrid.ActiveRow.Cells[index];        

                          break;                

                  }

          }

Hi,

Well, the reason it's not working is pretty clear. This code first checks to see if the row has a child, which in this case it does not. Then it checks to see if the row has any siblings and it does not. So it just bails out and does nothing.

I can't find any Action code that will go back up the chain to the parent rows. It looks like the only way to do this would be to do a recursive walk over the grid rows, which would be a bit tricky. But I think I figured it out. Try this:

private void ultraGrid1_BeforePerformAction(object sender, BeforeUltraGridPerformActionEventArgs e)
        {
            UltraGrid grid = (UltraGrid)sender;
            if (e.UltraGridAction == UltraGridAction.AboveCell || e.UltraGridAction == UltraGridAction.BelowCell)
            {
                UltraGridCell cell = grid.ActiveCell;

                int index = cell.Column.Index;
                grid.PerformAction(UltraGridAction.DeactivateCell);
                e.Cancel = true;


                UltraGridRow row = cell.Row;

                switch (e.UltraGridAction)
                {
                    case UltraGridAction.BelowCell:
                        if (row.HasChild())
                        {
                            grid.PerformAction(UltraGridAction.NextRow);
                        }
                        else if (row.HasNextSibling(true))
                        {
                            grid.PerformAction(UltraGridAction.NextRowByTab);
                        }
                        else
                        {
                            row = row.ParentRow;
                            while(row != null)
                            {
                                if (row.HasNextSibling(true))
                                {
                                    row = row.GetSibling(SiblingRow.Next);
                                    row.Activate();
                                    row.Selected = true;
                                    break;
                                }
                                else
                                    row = row.ParentRow;
                            }
                        }
                        
                        grid.ActiveCell = grid.ActiveRow.Cells[index];

                        break;

                    case UltraGridAction.AboveCell:

                        if (row.HasPrevSibling(true))
                        {
                            grid.PerformAction(UltraGridAction.PrevRowByTab);
                        }
                        else if (row.HasParent())
                        {
                            grid.PerformAction(UltraGridAction.PrevRow);
                        }

                        grid.ActiveCell = grid.ActiveRow.Cells[index];
                        break;
                }
            }
        }

Yes, that worked. Thanks