I had quick search implemented in first column of the grid and on after cell update check in Database that item exists or not. IF exists then fill row other cell with values and cursor moves to next cell but if item not exists then I had reset focus back to first cell although I tried

                                 this.ultragrid1.ActiveCell = ultragrid1.ActiveRow.Cells[0] ;
                                this.ultragrid1.PerformAction(UltraGridAction.EnterEditMode, false, false);

but its not working  and on press of tab it search and cursor moves to next cell of the row.Can you suggest me a way to set focus back to previous cell.