////// https://www.codeproject.com/articles/3225/treelistview /// https://www.codeproject.com/Tips/572728/TreeListViewEx-Tree-List-and-Drag-and-Drop /// https://sourceforge.net/projects/objectlistview/ /// 涂聚文 20190704 /// Geovin Du /// public partial class TryTreeListView : Form { Listselectindex = new List ();// TreeListViewItem draggedNode=new TreeListViewItem(); /// /// /// public string draggtext { set; get; } ////// /// string beforeEdit = ""; ////// /// string beforeEditName = ""; ////// /// string afterEdit = ""; string nodechildid = ""; string nodeparentid = ""; string nodechild = ""; string nodeparent = ""; string nodetitle = ""; ////// /// ListgetList = new List (); /// /// /// ///DataTable setList() { DataTable dt = new DataTable(); dt.Columns.Add("Id", typeof(int)); dt.Columns.Add("Name", typeof(string)); dt.Columns.Add("ParentId", typeof(int)); dt.Columns.Add("Level", typeof(int)); dt.Rows.Add(1, "六福集团", 0,0); dt.Rows.Add(2, "广州六福", 1,1); dt.Rows.Add(3, "北京六福", 1,1); dt.Rows.Add(4, "上海六福", 1,1); dt.Rows.Add(5, "深圳六福", 1,1); dt.Rows.Add(6, "人事部", 5,2); dt.Rows.Add(7, "科技部", 5,2); dt.Rows.Add(8, "恒大集团", 0, 0); dt.Rows.Add(9, "恒大广州", 8, 1); dt.Rows.Add(10, "恒大北京", 8, 1); dt.Rows.Add(11, "恒大上海", 8, 1); dt.Rows.Add(12, "恒大深圳", 8, 1); dt.Rows.Add(13, "人事部", 11, 2); dt.Rows.Add(14, "科技部", 11, 2); return dt; } /// /// /// /// /// private void setTreeView(TreeView tr1, int parentId) { DataRow[] ds = setList().Select("ParentId=" + parentId.ToString()); if (ds.Length > 0) { int pId = -1; foreach (DataRow row in ds) { TreeNode node = new TreeNode(); node.Text = row["Name"].ToString(); node.Tag = (int)row["Id"]; pId = (int)row["ParentId"]; if (pId == 0) { //添加根节点 tr1.Nodes.Add(node); } else { //添加根节点之外的其他节点 RefreshChildNode(tr1, node, pId); } //查找以node为父节点的子节点 setTreeView(tr1, (int)node.Tag); } } } ////// /// public void bind() { ColumnHeader head=new ColumnHeader(); head.Text = "Level"; treeListView1.Columns.Add(head); DataRow[] ds = setList().Select("ParentId=0"); foreach (DataRow row in ds) { //第一层 TreeListViewItem itemA = new TreeListViewItem(row["Name"].ToString(), 0); itemA.Expand(); itemA.SubItems.Add(row["Id"].ToString()); itemA.SubItems.Add(row["ParentId"].ToString()); itemA.SubItems.Add(row["Level"].ToString()); itemA.ToolTipText = row["ParentId"].ToString(); treeListView1.Items.Add(itemA); DataRow[] ds1 = setList().Select("ParentId=" + row["Id"].ToString()); if (ds1.Length > 0) { //第二层 foreach (DataRow row1 in ds1) { if (row["Id"].ToString() == row1["ParentId"].ToString()) { TreeListViewItem item = new TreeListViewItem(row1["Name"].ToString(), 1); item.SubItems.Add(row1["Id"].ToString()); item.SubItems.Add(row1["ParentId"].ToString()); item.SubItems.Add(row1["Level"].ToString()); item.ToolTipText = row1["ParentId"].ToString(); itemA.Items.Add(item); DataRow[] ds2 = setList().Select("ParentId=" + row1["Id"].ToString()); if (ds2.Length > 0) { foreach (DataRow row2 in ds2) { //第三层 if (row1["Id"].ToString() == row2["ParentId"].ToString()) { TreeListViewItem item2 = new TreeListViewItem(row2["Name"].ToString(), 2); item2.SubItems.Add(row2["Id"].ToString()); item2.SubItems.Add(row2["ParentId"].ToString()); item2.SubItems.Add(row2["Level"].ToString()); item2.ToolTipText = row2["ParentId"].ToString(); item.Items.Add(item2); } } } } } } } } ////// 处理根节点的子节点 /// /// /// /// private void RefreshChildNode(TreeView tr1, TreeNode treeNode, int parentId) { foreach (TreeNode node in tr1.Nodes) { if ((int)node.Tag == parentId) { node.Nodes.Add(treeNode); return; } else if (node.Nodes.Count > 0) { FindChildNode(node, treeNode, parentId); } } } ////// 处理根节点的子节点的子节点 /// /// /// /// private void FindChildNode(TreeNode tNode, TreeNode treeNode, int parentId) { foreach (TreeNode node in tNode.Nodes) { if ((int)node.Tag == parentId) { node.Nodes.Add(treeNode); return; } else if (node.Nodes.Count > 0) { FindChildNode(node, treeNode, parentId); } } } ////// /// public TryTreeListView() { InitializeComponent(); } ////// /// /// /// private void TryTreeListView_Load(object sender, EventArgs e) { setTreeView(this.treeView1, 0); this.treeView1.ExpandAll(); bind(); } ////// /// /// /// private void treeListView1_ItemCheck(object sender, ItemCheckEventArgs e) { TreeListViewItem item = new TreeListViewItem(); //MessageBox.Show(e.Index.ToString()); // TreeListViewItem //MessageBox.Show(treeListView1.SelectedItems.Count.ToString()); // MessageBox.Show(treeListView1.Items[0].SubItems[0].Text); //MessageBox.Show(treeListView1.GetTreeListViewItemFromIndex(e.Index).Text); if (treeListView1.GetTreeListViewItemFromIndex(e.Index).Checked == false) { //MessageBox.Show(treeListView1.GetTreeListViewItemFromIndex(e.Index).SubItems[0].Text); //从子节点开始 item = treeListView1.GetTreeListViewItemFromIndex(e.Index); getList.Add(item); } //取消 //if (treeListView1.GetTreeListViewItemFromIndex(e.Index).Checked == true) //{ // MessageBox.Show(treeListView1.GetTreeListViewItemFromIndex(e.Index).SubItems[0].Text); //} //MessageBox.Show(e.Index.ToString()); } ////// /// /// /// private void treeListView1_ItemActivate(object sender, EventArgs e) { } ////// /// /// /// private void button1_Click(object sender, EventArgs e) { this.textBox1.Text=getList.Count.ToString(); string s = getList[0].FullPath; //节点路径 string l=getList[0].Level.ToString(); string ss = getList[0].Parent.Text; string sb = getList[0].Parent.SubItems[0].Text; Form1 frm = new Form1(); frm.fullpath = getList[0].FullPath; //节点路径 frm.editname = getList[0].Text; frm.id = getList[0].SubItems[1].Text; if (frm.ShowDialog() == DialogResult.OK) { } getList = new List(); } /// /// /// /// /// private void treeListView1_ItemMouseHover(object sender, ListViewItemMouseHoverEventArgs e) { //MessageBox.Show(e.Item.Text); } ////// 编辑前的值 /// /// /// private void treeListView1_BeforeLabelEdit(object sender, TreeListViewBeforeLabelEditEventArgs e) { MessageBox.Show(e.Item.Text); } ////// /// /// /// private void treeListView1_AfterLabelEdit(object sender, TreeListViewLabelEditEventArgs e) { MessageBox.Show(e.Item.Text); } ////// 拖放完成发生 /// /// /// private void treeListView1_DragDrop(object sender, DragEventArgs e) { try { // Retrieve the client coordinates of the drop location. Point targetPoint = treeListView1.PointToClient(new Point(e.X, e.Y)); //所要放置的位置 // Retrieve the node at the drop location. TreeListViewItem targetNode = treeListView1.GetItemAt(targetPoint); TreeListViewItem fullNode = treeListView1.GetItemAtFullRow(targetPoint); // draggedNode = (TreeListViewItem)e.Data.GetData(typeof(TreeListViewItem)); //string s = e.Data.GetData(typeof(TreeListViewItem)).ToString(); System.Windows.Forms.TreeListView.DragItemData data = (System.Windows.Forms.TreeListView.DragItemData)e.Data.GetData(typeof(System.Windows.Forms.TreeListView.DragItemData)); draggedNode = (TreeListViewItem)data.DragItems[0]; if (!draggedNode.Equals(targetNode) && !ContainsNode(draggedNode, targetNode)) { // If it is a move operation, remove the node from its current // location and add it to the node at the drop location. if (e.Effect == DragDropEffects.Move) { //draggedNode.Remove(); // int indx=targetNode.Index; // targetNode.Items.Insert(draggedNode.Index,draggedNode); //treeListView1.Items.Insert(indx, targetNode); draggedNode.Remove(); targetNode.Items.Add(draggedNode); // targetNode.Items.Insert(indx, draggedNode); //父节点，添加移动的子节点 nodechildid = draggedNode.SubItems[1].Text;//子节点 nodeparentid = targetNode.SubItems[1].Text;//父节点 nodechild = draggedNode.Text;//子节点 nodeparent = targetNode.Text;//父节点 nodetitle = draggedNode.ToolTipText; //bookKindListInfo.BookKindID = int.Parse(nodechildid); //bookKindListInfo.BookKindParent = int.Parse(nodeparentid); //bookKindListInfo.BookKindName = nodechild; //bookKindListInfo.BookKindCode = nodetitle; //this.textBox1.Text = nodeparent; //this.textBox2.Text = nodechild; //this.textBox3.Text = nodetitle; //formOperatingStringInfo.NodeMoveUpdated = true; //button1.Text = "移動區域節點"; //administrativeAreaListInfo.AreaID = int.Parse(nodechildid); //administrativeAreaListInfo.AreaParentID = int.Parse(nodeparentid); //administrativeAreaListInfo.AreaName = nodechild; //int k = bookKindListBLL.UpdateBookKindList(bookKindListInfo); //if (k >= 1) //{ // MessageBox.Show("移動书目录成功！"); // InitDataTable(); // BindRoot(); // treeView1.ExpandAll(); //全部展开 //} //else //{ // MessageBox.Show("移動书目录不成功！"); //} /// MessageBox.Show("子节点：" + nodechild + ",父节点：" + nodeparent, "拖动节点", MessageBoxButtons.OK, MessageBoxIcon.Information); } // If it is a copy operation, clone the dragged node // and add it to the node at the drop location. else if (e.Effect == DragDropEffects.Copy) { targetNode.Items.Add((TreeListViewItem)draggedNode.Clone()); } // Expand the node at the location // to show the dropped node. targetNode.Expand(); } } catch (Exception ex) { ex.Message.ToString(); } } //////Determine whether one node is a parent ///or ancestor of a second node. /// /// /// ///private bool ContainsNode(TreeListViewItem node1, TreeListViewItem node2) { // Check the parent node of the second node. 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); } /// /// 施放离开边界时发生 /// /// /// private void treeListView1_DragLeave(object sender, EventArgs e) { } ////// /// /// /// private void treeListView1_DragEnter(object sender, DragEventArgs e) { e.Effect = e.AllowedEffect; } ////// /// /// /// private void treeListView1_ItemDrag(object sender, ItemDragEventArgs e) { // Move the dragged node when the left mouse button is used. if (e.Button == MouseButtons.Left) { DoDragDrop(e.Item, DragDropEffects.Move); draggedNode = (TreeListViewItem)e.Item; } // Copy the dragged node when the right mouse button is used. else if (e.Button == MouseButtons.Right) { DoDragDrop(e.Item, DragDropEffects.Copy); draggedNode = (TreeListViewItem)e.Item; } } ////// /// /// /// private void treeListView1_DragOver(object sender, DragEventArgs e) { //draggedNode = (TreeListViewItem)e.Data.GetData(typeof(TreeListViewItem)); //Point draggedPoint = treeListView1.PointToClient(new Point(e.X, e.Y)); //draggedNode = treeListView1.GetItemAt(draggedPoint); } ////// 双控件 /// /// /// private void treeListView1_DoubleClick(object sender, EventArgs e) { string selectedname=treeListView1.SelectedItems[0].Text; Form1 frm = new Form1(); frm.fullpath = treeListView1.SelectedItems[0].FullPath; //节点路径 frm.editname = treeListView1.SelectedItems[0].Text; frm.id = treeListView1.SelectedItems[0].SubItems[1].Text; if (frm.ShowDialog() == DialogResult.OK) { } this.textBox1.Text = selectedname; } ////// /// /// /// private void treeListView1_Leave(object sender, EventArgs e) { if (treeListView1.SelectedItems!= null) { //让选中项背景色呈现红色 treeListView1.SelectedItems[0].BackColor = Color.Red; //前景色为白色 treeListView1.SelectedItems[0].ForeColor = Color.White; } } ////// 添加子节点 /// /// /// private void addToolStripMenuItem_Click(object sender, EventArgs e) { } ////// 编辑当前节点 /// /// /// private void editToolStripMenuItem_Click(object sender, EventArgs e) { } ////// 删除当前节点 /// /// /// private void delToolStripMenuItem_Click(object sender, EventArgs e) { } ////// 添加同层节点 /// /// /// private void addLevelToolStripMenuItem_Click(object sender, EventArgs e) { } }
