treenode

Creating custom TreeView/TreeNode

由 那年仲夏 提交于 2019-12-09 18:38:10
问题 I need to extend the TreeNode class such that I can add custom properties to each node (seeing as WebForms TreeNode doesn't include the Tag property). So this is my CustomTreeNode: public class CustomTreeNode : TreeNode { public CustomTreeNode() { } public CustomTreeNode(int nodeId, string nodeType) { NodeId = nodeId; NodeType = nodeType; } public string NodeType { get; set; } public int NodeId { get; set; } } If I create a CustomTreeNode and add it to a TreeView: CustomTreeNode node = new

How do you cut, copy, and paste an extended Tree Node?

由 生来就可爱ヽ(ⅴ＜●) 提交于 2019-12-08 18:12:27
I have a c# project using version 4.0 of the .net framework, and running on VS 2010. I have created a tree view populated with some extended tree nodes. I want the user to be able to copy, cut, and paste these nodes to the clipboard via a context menu or keyboard shortcuts (and not just drag-drop). The code runs fine when copying, but when I try to paste these nodes it throws this error: Unable to cast object of type 'System.IO.MemoryStream' to type 'Namespace Path.TreeNodeEx'. Here's my cut/copy/paste methods. public void Copy() { Clipboard.SetData("Tree Node Ex", CurrentTreeNode.Clone()); }

php display multilevel treenode menu

由 ☆樱花仙子☆ 提交于 2019-12-08 11:58:48
问题 How do I display this structure into a multi-level menu? Here's the structure: array 0 => array 'product_category_code' => string 'bracelets' (length=9) 'product_category_desc' => string 'Bracelets' (length=9) 'parent_node' => string '' (length=0) 'inactive' => string '0' (length=1) 'sort' => string '0' (length=1) 'created_by' => string '1' (length=1) 'created_date' => string '2014-03-14 22:04:08' (length=19) 'modified_by' => string '1' (length=1) 'modified_date' => string '2014-03-14 22:09

Angular PrimeNg TreeNode : convert class into TreeNode, cannot read property map of undefined

由 寵の児 提交于 2019-12-08 09:06:57
问题 I'm working on an application generated by JHipster and using Angular 4.3. I'm trying to use the tree component of PrimeNG I'm trying to convert an array of objects into an array of TreeNode, in order to be displayed like a tree. My typescript model looks like this : export class Continent implements BaseEntity { constructor( public id?: number, public name?: string, public countries?: Country[] ) { } I've followed this subject which describes how to convert interfaces (but in my case I have

How do you cut, copy, and paste an extended Tree Node?

由 自古美人都是妖i 提交于 2019-12-08 08:35:11
问题 I have a c# project using version 4.0 of the .net framework, and running on VS 2010. I have created a tree view populated with some extended tree nodes. I want the user to be able to copy, cut, and paste these nodes to the clipboard via a context menu or keyboard shortcuts (and not just drag-drop). The code runs fine when copying, but when I try to paste these nodes it throws this error: Unable to cast object of type 'System.IO.MemoryStream' to type 'Namespace Path.TreeNodeEx'. Here's my cut

Empty expandable treenode in C#

由 走远了吗. 提交于 2019-12-08 03:58:31
问题 I want to create an expandable empty treenode in C#, i.e. a treenode which is empty and has the [+] sign beside it. The reason is because initially it is empty, but once a node is clicked, I want to populate it with many child nodes. The only problem I am facing is that empty treenodes aren't expandable, so I don't know what to do. Is there a way to solve this problem, or are there any workarounds? 回答1: You have to redraw the tree itself, or create an empty node and simply remove it when the

TreeView with multi-color TreeNode text

由 不打扰是莪最后的温柔 提交于 2019-12-08 01:35:00
问题 I need to have the text within a node in TreeView to be colored within words or characters. Is that possible? What is the way to go? I heard of Custom Drawing but have no experience with it! 回答1: Set the property of the TreeView: treeView1.DrawMode = TreeViewDrawMode.OwnerDrawText; Then from the DrawNode event: private void treeView1_DrawNode(object sender, DrawTreeNodeEventArgs e) { Color nodeColor = Color.Red; if ((e.State & TreeNodeStates.Selected) != 0) nodeColor = SystemColors

R: How to traverse from root node to each leaf node in an iGraph data object and get the path?

由 瘦欲@ 提交于 2019-12-07 19:44:44
问题 I am new to R and I have a graph object which I have created from a data frame object "allTog" as shown below: library(igraph) df.g <- graph.data.frame(d = allTog, directed = TRUE) plot(df.g, vertex.label = V(df.g)$name) The allTog data frame is given by allTog <- data.frame( source = c("chamber", "chamber", "chamber", "chamber", "chamber", "check", "check", "issue", "issue", "issue"), target = c("check", "issue", "leak", "process", "found", "power", "customer", "customer", "wafer", "replaced

make a tree from a table using golang?

由 北战南征 提交于 2019-12-07 02:42:37
问题 I want to make a tree from a table. the table is as following: OrgID OrgName parentID A001 Dept 0 -----th top A002 subDept1 A001 A003 sub_subDept A002 A006 gran_subDept A003 A004 subDept2 A001 and i want the result is as following,how to do it using go: Dept --subDept1 ----sub_subDept ------gran_subDept --subDept2 回答1: If you want to parse the lines into a tree structure, this is a way to do it: package main import ( "bufio" "fmt" "io" "os" "strings" ) type Node struct { name string children

TreeView with multi-color TreeNode text

由 无人久伴 提交于 2019-12-06 08:34:56
I need to have the text within a node in TreeView to be colored within words or characters. Is that possible? What is the way to go? I heard of Custom Drawing but have no experience with it! Set the property of the TreeView: treeView1.DrawMode = TreeViewDrawMode.OwnerDrawText; Then from the DrawNode event: private void treeView1_DrawNode(object sender, DrawTreeNodeEventArgs e) { Color nodeColor = Color.Red; if ((e.State & TreeNodeStates.Selected) != 0) nodeColor = SystemColors.HighlightText; TextRenderer.DrawText(e.Graphics, e.Node.Text, e.Node.NodeFont, e.Bounds, nodeColor, Color.Empty,
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