private void toolStripMenuItem6_Click(object sender, EventArgs e) { if (this.treeList1.Selection.Count == 0) { return; } DataRow row = ((DataRowView)this.treeList1.GetDataRecordByNode(this.treeList1.Selection[0])).Row; foreach (DataRow dataRow in AtTreeList.GetListNodesRows(this.treeList1, this.treeList1.FocusedNode)) { dataRow.Delete(); } }