private void RefreshCardLevel() { DataTable dt = SelectDao.GetCardName(); this.treeList1.BeginUnboundLoad(); TreeListNode parentNode = this.treeList1.AppendNode(new object[] { "ζζδΌε" }, -1); foreach (DataRow dr in dt.Rows) { string level = dr[0].ToString(); cardNameList.Add(level); this.treeList1.AppendNode(new object[] { level }, parentNode); } this.treeList1.EndUnboundLoad(); }