DialogResult dres = MessageBox.Show(@"Вы Действительно ходите удалить выбранную запись?", "Удаление!!!",
                                MessageBoxButtons.OKCancel, MessageBoxIcon.Question);
            if (dres == DialogResult.OK)
            {

                try
                {
                    if (TipTSTreeView.SelectedNode != null)
                    {

                        TagInfo ti = (TagInfo)TipTSTreeView.SelectedNode.Tag;

                        TipTSTreeView.SelectedNode.Tag = ti;

                        TreeNode tn = TipTSTreeView.SelectedNode;
                        TipTSTreeView.Nodes.Remove(tn); //Удаляет указанный узел дерева из коллекции узлов дерева

                        TipTSTreeView.Nodes.Clear();

                        DataRow rowdelete = dic_TipTSDataSet.Dic_TipTS.FindByid(ti.id);
                        rowdelete.Delete();

                        this.dic_TipTSTableAdapter.Update(this.dic_TipTSDataSet.Dic_TipTS);
                        this.dic_TipTSTableAdapter.Fill(this.dic_TipTSDataSet.Dic_TipTS);

                        treeViewInfo.FillTreeViewInfo();

                    }
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.ToString());
                }



            }

UPDATE       Dic_TipTS
SET                parentID = @parentID, name = @name, note = @note
WHERE        (id = @Original_id) AND (parentID = @Original_parentID) AND (name = @Original_name)

DELETE FROM Dic_TipTS
WHERE        (id = @Original_id) AND (parentID = @Original_parentID) AND (name = @Original_name) AND (note = @Original_note)