-
-
-
-
-
- private void tsbMoveUp_Click(object sender, EventArgs e)
- {
- if (Tv_tree.SelectedNode == null)
- {
- MessageBox.Show("请选择需要移动的的节点!");
- this.Focus();
- return;
- }
- folder model = new folder();
- TreeNode node = Tv_tree.SelectedNode;
- model.folderId = node.Tag.ToString();
- model.TheOrder = node.Name.ToString();
- if (node.PrevNode == null)
- {
- return;
- }
- folder upModel = new folder();
- TreeNode upNode = node.PrevNode;
- upModel.folderId = upNode.Tag.ToString();
- upModel.TheOrder = upNode.Name;
- bool flag = folderOperation.MoveUp(model, upModel);
- if (flag)
- {
- string theOrder = node.Name;
- node.Name = upNode.Name;
- upNode.Name = theOrder;
- TreeNode newNode = (TreeNode)node.Clone();
- if (node.Parent == null)
- {
- Tv_tree.Nodes.Insert(upNode.Index, newNode);
- }
- else
- {
- node.Parent.Nodes.Insert(upNode.Index, newNode);
- }
- node.Remove();
- Tv_tree.SelectedNode = newNode;
- }
- else
- {
- return;
- }
- }
-
-
-
-
-
- private void tsbMoveDown_Click(object sender, EventArgs e)
- {
- if (Tv_tree.SelectedNode == null)
- {
- MessageBox.Show("请选择需要移动的的节点!");
- this.Focus();
- return;
- }
- folder model = new folder();
- TreeNode node = Tv_tree.SelectedNode;
- model.folderId = node.Tag.ToString();
- model.TheOrder = node.Name.ToString();
- if (node.NextNode == null)
- {
- return;
- }
- folder downModel = new folder();
- TreeNode dowNode = node.NextNode;
- downModel.folderId = dowNode.Tag.ToString();
- downModel.TheOrder = dowNode.Name;
- bool flag = folderOperation.MoveUp(model, downModel);
- if (flag)
- {
- string theOrder = node.Name;
- node.Name = dowNode.Name;
- dowNode.Name = theOrder;
- TreeNode newNode = (TreeNode)dowNode.Clone();
- if (node.Parent == null)
- {
- Tv_tree.Nodes.Insert(node.Index, newNode);
- }
- else
- {
- node.Parent.Nodes.Insert(node.Index, newNode);
- }
- dowNode.Remove();
- Tv_tree.SelectedNode = node;
- }
- else
- {
- return;
- }
- }
-
- string sql = string.Format("update folder set theorder = '{0}' where folderid = '{1}'", model.TheOrder, upModel.folderId);
- string sql1 = string.Format("update folder set theorder = '{0}' where folderid = '{1}'", upModel.TheOrder, model.folderId);
-
-
-
-
-
- private void tvDocInfo_AfterExpand(object sender, TreeViewEventArgs e)
- {
- if (e.Node.Parent == null)
- {
- TreeView tree = (TreeView)sender;
- tree.AfterCheck -= new TreeViewEventHandler(this.tvDocInfo_AfterExpand);
-
- TreeNode parentNode = e.Node.Parent;
- if (parentNode != null)
- {
- foreach (TreeNode tn in parentNode.Nodes)
- {
- if (tn != e.Node)
- tn.Collapse();
- }
- }
- else
- {
- foreach (TreeNode tn in tree.Nodes)
- {
- if (tn != e.Node)
- tn.Collapse();
- }
- }
- }
-
- }
节点拖拽,必须设置TreeView的AllowDrop属性为True;
- private Point Position = new Point(0, 0);
-
- private void treeView1_ItemDrag(object sender, ItemDragEventArgs e)
- {
- DoDragDrop(e.Item, DragDropEffects.Move);
- }
-
- private void treeView1_DragEnter(object sender, DragEventArgs e)
- {
- if (e.Data.GetDataPresent(typeof(TreeNode)))
- e.Effect = DragDropEffects.Move;
- else
- e.Effect = DragDropEffects.None;
- }
-
- private void treeView1_DragDrop(object sender, DragEventArgs e)
- {
- TreeNode myNode = null;
- if (e.Data.GetDataPresent(typeof(TreeNode)))
- {
- myNode = (TreeNode)(e.Data.GetData(typeof(TreeNode)));
- }
- else
- {
- MessageBox.Show("error");
- }
- Position.X = e.X;
- Position.Y = e.Y;
- Position = tvType.PointToClient(Position);
- TreeNode DropNode = this.tvType.GetNodeAt(Position);
- if (FunctionsUI.CreateQuestionDialog("是否要将"+myNode.Text+"移动"+DropNode.Text+"类别下?") == DialogResult.OK)
- {
-
- if (DropNode != null && DropNode.Parent != myNode && DropNode != myNode)
- {
- TreeNode DragNode = myNode;
-
- myNode.Remove();
-
- DropNode.Nodes.Add(DragNode);
- }
-
- if (DropNode == null)
- {
- TreeNode DragNode = myNode;
- myNode.Remove();
- tvType.Nodes.Add(DragNode);
- }
- }
- }
|