private void ButtonAddNewGroupClick(object sender, EventArgs e) { var g = new ComputerPartGroup {Name = "_Nowa grupa", Show = false}; using (var dbContext = new ComputerSetDatabaseContext()) { var lastSequence = dbContext.ComputerPartGroups.Max(x => x.Sequence); g.Sequence = ++lastSequence; dbContext.ComputerPartGroups.Add(g); dbContext.SaveChanges(); } buttonAddNewGroup.Enabled = false; buttonAddNewPart.Enabled = false; buttonDeleteSelected.Enabled = false; treeViewGroupsAndParts.Nodes.Clear(); InitializeTreeView(); DiagMsg(string.Format("utworzono nową grupę.")); }
//private static bool ContainsNode(TreeNode node1, TreeNode node2) //{ // if (node2.Parent == null) return false; // if (node2.Parent.Equals(node1)) return true; // // If the parent node is not null or equal to the first node, // // call the ContainsNode method recursively using the parent of // // the second node. // return ContainsNode(node1, node2.Parent); //} private void SetGroupControls(ComputerPartGroup g) { customTabControl.SelectTab(tabPageGroup); textBoxName.Text = g.Name; checkBoxGroupShow.Checked = g.Show; using (var dbContext = new ComputerSetDatabaseContext()) { var computerPartGroups = dbContext.ComputerPartGroups.ToList(); computerPartGroups.Insert(0, new ComputerPartGroup { Id = -1, Name = "..." }); comboBoxGroupParents.DataSource = computerPartGroups; comboBoxGroupParents.DisplayMember = "Name"; comboBoxGroupParents.ValueMember = "Id"; } comboBoxGroupParents.SelectedValue = g.Parent == null ? -1 : g.Parent.Id; }