1-) C# RMOS - treeList1 Column select focus

foreach (var item in treeList1.GetAllCheckedNodes())

                        {

                            treeList1.FocusedNode = item;

                            treeList1.FocusedColumn = treeList1.Columns["rez_bebek_rmos"];

                            treeList1.SelectCell(item, treeList1.Columns["rez_bebek_rmos"]);

                            break;

                        }