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Great Reads

Advanced WPF TreeViews Part 2 of n

by Dirk Bahle

A list of advanced tips & tricks on Virtualized WPF TreeViews

Advanced WPF TreeViews in C#/VB.Net Part 3 of n

by Dirk Bahle, Alaa Ben Fatma

Tips & tricks on visting and searching nodes in WPF TreeViews

How to Create TreeView in MVC3

by Amey K Bhatkar

How to create TreeView in MVC

Displaying XML in a WPF TreeView

by Gil Yoder

In this article, I describe how to display data from a simple XML file in a WPF TreeView control.

Latest Articles

Advanced WPF TreeViews in C#/VB.Net Part 4 of n

by Dirk Bahle

Tips & Tricks on loading and saving WPF Tree View based content.

Advanced WPF TreeView with Multi-Level Binding (Code Behind - No XAML!)

by Peter Sun (247)

Demonstrate how to create WPF TrewView with multiple levels of HierarchicalDataTemplate from C# code-behind without XAML using MVVM for data binding

Advanced WPF TreeViews in C#/VB.Net Part 3 of n

by Dirk Bahle, Alaa Ben Fatma

Tips & tricks on visting and searching nodes in WPF TreeViews

Multiselect Treeview

by Er. Puneet Goel

This is the implementation of Treeview with Multiselect node functionality wide requested by users.

All Articles

Treeview

How to disable treeview control from selecting?

1 Jun 2011 by #realJSOP

0) Use a thread for the "loading" stuff that happens1) In the "clicked" event handler for the list control, see if the loading thread is still running. If it is, don't do anything.2) Or, while the thread is running, disable the list control (I'd probably do it this way).

Unable to cast an object of type System.Web.UI.WebControls.TreeNode to Custom node

11 Jul 2011 by #realJSOP

You probably need to cast the sender to the appropriate type instead.EDIT ==================You still have to cast the sender to get the selected node:Treeview tree = sender as TreeView;Node node = tree.SelectedNode as Node;

please correct my vb 6 coding

12 Aug 2011 by #realJSOP

Run it under the debugger. Whatever your problem is will be revealed as you step through the code.

How to disable treeview control from selecting?

1 Jun 2011 by 2000 P

Hi Friends, Code:private void treeView_AfterSelect(object sender, System.Windows.Forms.TreeViewEventArgs e){ StatusBar.text = "Loading Files"; //ArrayList files1,ListView ListView1 filllist(files1, ListView1); StatusBar.text = "List contains X Items";}After...

TreePanel 'Add' button on each non-leaf node

27 Dec 2013 by 7045Jeegnesh

Hi all, Can anyone show me the code for how I would go about inserting an 'Add' button per each non-leaf node of a TreePanel. Clicking on this 'Add' button would show a dialogue to add a new leaf node to the relevant node.I would be grateful for any help in the right...

Saving folder hierarchy in database

23 Sep 2010 by @nuraGGupta@

Hi,I need to develop a windows application in C#, where I have to get all the hierarchy of folders, sub folders and files listed in a database in the order they are on the disk. The place where i am stuck up adding the same hierarchy to the database.I am not getting the exact parent and...

tree view saving in database

23 Sep 2010 by @nuraGGupta@

Hi all,I want to know that is there anyway put the treeview structure in the same hierarchy in database. I have googled for it but din got a clear understanding. I hope someone could help me out with a better example.Anurag

What type of list<> should I use to hold data in a winforms treeview?

20 Dec 2017 by ________________

Be object-oriented: public class MyClass { public List MyChildren { get; set; } public MyClass MyParent { get; set; } } Fill this virtual tree from DB , than simple recursive function can show it in TreeView: using System; using System.Collections.Generic; using...

How to get Tree view selected node value using Javascript

3 Aug 2012 by _Amy

Hi,This is quite easy to get the selected node of treeview.Try this:HTML: CS:protected void Page_Load(object sender, EventArgs e){ if (!IsPostBack) { TreeView1.Nodes.Add(new TreeNode("Mango", "Fruit1")); ...

Tree view in asp.net c sharp

14 Feb 2013 by _Amy

The Skip Navigation is there for accessibility purposes. If it's part of an ASP.NET Tree view, and you want to disable it, try setting the attribute:SkipLinkText=""See TreeView.SkipLinkText Property[^].--Amit

Hide tree view node in asp.net

20 Mar 2013 by _Amy

Try this:protected void Page_Load(object sender, EventArgs e){ RemoveNodeRecurrently(TreeView1.Nodes, "YourTreeNodeText");}private void RemoveNodeRecurrently(TreeNodeCollection childNodeCollection, string text){ foreach (TreeNode childNode in childNodeCollection) { if...

add node to treeview

28 Nov 2015 by _Tuba

Hi, I'm trying in this code to add node from textbox to treeview if this node equal to node that is found in treeview the new node must be next old node and have color yellow the problem when I click to the button nothing happen for (int i = 0; i

saving and loading a treeview with imagelist

22 Apr 2015 by aazam rafiee zade

HelloHow I can save and load a treeview with imagelist?I used System.Runtime.Serialization for loading and saving but imagelist was not saved.

In Windows application ,how to write the code for specific child node(more no of child node) in the corresponding tree view.

2 Sep 2013 by abbaspirmoradi

for specific child nodes you can set checked property for all of them true.look at this:http://msdn.microsoft.com/en-us/library/system.windows.forms.treeview.aftercheck.aspx[^]

treeview with checkbox..

4 Dec 2013 by abbaspirmoradi

this can help you:http://social.msdn.microsoft.com/Forums/vstudio/en-US/bdc74177-0db3-4e9d-9a08-96406eb981a8/wpf-treeview-with-checkboxes[^]http://go4answers.webhost4life.com/Example/wpf-treeview-checked-item-199516.aspx[^]

Treeview node not expanding on clicking on text

4 Sep 2015 by Abdul Samad KP

This happens because your treenodes have duplicate values, change the line parentTreeNode.Value = firstDataRows["ParentId"].ToString();to parentTreeNode.Value = firstDataRows["Id"].ToString();So that they will have unique values

ASTreeview for commercial purpose

31 Aug 2011 by Abhijit Jana

The best way to get the answer of this question to asking the same in that article discussion forum. On post, Author will get a email notification ( If he opt for the email notification. Hopefully yes :) ) so that he can update you on the licensing stuff.

How to add new child node at runtime

18 Dec 2012 by Abhijit Parab

Hi,I am using Treeview control on my asp .net page. I am having parent and child nodes in my treeview. My requirement is when i right click on Treeview it should allow me to add new child node in parent node. I want to provide textbox in treeview and entered value should be added as new child...

Horizontal Tree view ASP.NET

1 Nov 2010 by Abhinav S

What have you tried so far? If you post some code here someone maybe able to help you better.

Help in storing data of treeview using arraylist

5 Apr 2011 by Abhinav S

I would consider using a Dictionary object.

please correct my vb 6 coding

12 Aug 2011 by Abhinav S

Did you write the original code. If yes, I think you should look at refactoring it.This is a virtual nightmare to maintain.You are getting an error somewhere, but you cannot find it.Think of how difficult it would be for someone else to debug and find the same error.

Create a Treeview with all folders and sub-folders

7 Dec 2011 by Abhinav S

http://www.a1v...

Align buttons on wpf treeview

19 Dec 2011 by Abhinav S

Try by setting the minwidth on the treeview elements and then right align the buttons.

How to create treeview in Combobox Asp.net

26 May 2013 by Abhinav S

Tryhttp://www.w3schools.com/aspnet/control_dropdownlist.asp[^]http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.dropdownlist.aspx[^]http://www.aspsnippets.com/articles/creating-dynamic-dropdownlist-controls-in-asp.net.aspx[^]

How to bind a treeview to viewmodel

25 Jan 2013 by Abhishek Pant

How to: Make a Hierarchical treeview binding in WPF[^]Working with Checkboxes in the WPF TreeView[^]WPF Menu using ViewModel - Part 1[^]Simplifying the WPF TreeView by Using the ViewModel Pattern[^]

Saving folder hierarchy in database

23 Sep 2010 by Abhishek Sur

I think you need to use self join based on your data in tblFiles. ParentId will be on the same table where ID is. Create the hierarchy from the root and select each element which have parentId in common. :)

treeview populate on demand change treenode image clientside (javascript)

15 Aug 2011 by Abreemen

My simple problem is the following:When I populate my Treeview on demand I want to show a sort of an in progress icon on the treenode currently beeing populated.I Found for that the solution that I btw like very much:function OnExpandClick(event){ var evt = evt ||...

Override table styles in asp.net Treeview

14 Feb 2015 by adchoudhary

Remove link for the css file for the page or add a style tag to the treeview with the customize settings u want.

How to get Tree view selected node value using Javascript

3 Aug 2012 by Adersh Ram

Hi friends,I am working with ASP.Net 2008, I wanna show the selected node in a text box, without postback.Please help me.Thanks Advance..Thanks Adersh Ram

i need to show xml data in treeview and also editiable mode in node values in wpf using mvvm.please help me

29 Dec 2015 by adityaswami89

You need to add a data template with a textbox in it as shown below :

WPF-Extended-Toolkit

How to create treeview through css & js

11 Sep 2015 by Afzaal Ahmad Zeeshan

CSS alone cannot do that, there may be a lot of childs, who are not going to write a CSS child selector for N elements, are you? For this reason JavaScript is used to create a loop for those N elements, and to attach a visual representation (or a class to each of those elements). This way, the...

How to display text in a textbox on mouse click for tree view

11 Oct 2012 by Afzal Shaikh

Isntead of using asp.net TextBox Control use HTML TextArea Control and display the contents like thattextarea1.value= Dataset.Tables[tableindex].Rows[rowindex][columnindex].ToString();

Mouse Double Click Event Issue

28 Jan 2014 by agent_kruger

on double click event add this code in beginningif(this.ActiveControl != treeView){ //Do Work}orif(this.ActiveControl == treeView){ return;}

Change Text of a Tree Node in treeview c# win. form

25 Jan 2023 by agent_kruger

How to restrict somebody from entering text in a tree node. I want to check after "treeView1_AfterLabelEdit" that if the text inserted is already saved. If yes, then the inserted text should be changed to "New". How to do so?

Problem in searching through a tree view in c# win. form

20 Feb 2014 by agent_kruger

My tree is like this:-Science Biology Human Physics Chemistrynow i want to search if Human exists in the whole tree (without iteration [for,while,do while or foreach]). How to do so?I tried 1) bool isExists =...

Add custom control to treeview in c#

22 Feb 2014 by agent_kruger

i am developing an application based on treeview but stuck at a point. I want to add some controls to the treeview such as textbox and picturebox where the nodes are displayed. But i don't know how to replace tree nodes with (textbox and picturebox).Can somebody help me here?Thanks in...

custom-controls

Tree View - Site Map

26 Oct 2012 by ahmad zrein

hitreeViewControl.DoubleCl...

Reload a TreeView in ascx for every x seconds

29 Jan 2014 by Ahmed Bensaid

Treeview in update panel[^]

TreeView Runtime Changes

2 Dec 2012 by Ahmed.ganainy

dear professionals, in my application the user will create a tree view on the run time my issue that i want to save the changes on the run time to be available for the next start of the application. FYI: all other controls i am using My.setting.Should i serialize it ? or there is...

Populating TreeView from OPML(XML) file

17 May 2013 by Akbar Ali Hussain

You have to read the OPML file as XmlDocument and read through nodes. Then add each node to the TreeNodes. Code is available on following link.http://channel9.msdn.com/Forums/TechOff/180598-Loading-OPML-into-a-TreeView-C[^]

treeview looping query

15 Aug 2013 by Akbar Ali Hussain

Try this http://stackoverflow.com/questions/9004543/recursive-child-parent-queries-in-t-sql[^]

get serialized jquery data in php

14 Oct 2013 by Akinmade Bond

You might want to start by taking a look at the JQuery $.post API Documentation[^]That said, your code shou;d be $.post ( 'action.php', { "formData": formData } , function(data) { alert(data);});The function should then show the serialized data from the server where you wrote...

i need to show xml data in treeview and also editiable mode in node values in wpf using mvvm.please help me

28 Dec 2015 by Akki Challa

this my xml file format: NONE NEW NONE NONE ...

WPF-Extended-Toolkit

i need to show xml data in treeview and also editiable mode in node values in wpf using mvvm.please help me

4 Jan 2016 by Akki Challa

i am able to populate as shown xml in tree view but i need to edit tag values like NONE,NEW,NONE,NONE,NONE,NONE,NONE AND ETC USING WPF WITH MVVM. HELP ME ASAP.

WPF-Extended-Toolkit

accordian panel on treenode click

5 Aug 2013 by aks.shan

Hi,I want to open a accordian panel on treeview node expand.How can i go ahead?Urgent plz-Akshay.

Editing TreeNode's tag property

13 Feb 2013 by al3abby

Hi everyoneI 'm Using the class from this example Using Serialization to Persist TreeView Control (VB.NET)[^]to populate a treeview from a xml file and then save it once againI can add, remove treenodes and save them to the xml file.But what I want to do and don't know how is...

Treeview Expand By ValuePath

20 Mar 2014 by Alexander Sharykin

if you use WinForms, you can populate tree view with values assinging them unique keyes.e.g.var root = treeViewDemo.Nodes.Add("195", "root");var c = root.Nodes.Add("231", "text 231");var d = c.Nodes.Add("301", "text 301");var e = d.Nodes.Add("404", "text 404");var f =...

problem assigning treeview.selectedNode in C#

27 Mar 2013 by aliyehjoon

I want to set treeView.selectedNode programlly in C# and I want to be occured the beforeSelect event while proccessing this assigning. but my question is what I describe below:when I use the code bellow, the beforeSelect event occured and call it's function.this.treeView1.SelectedNode =...

Removed checkbox reappears in treeview node when spacebar is pressed

27 Mar 2014 by AlwaysLearningNewStuff

I have used the accepted solution from this question[^] to remove checkbox from a treeview node in my WM_INITDIALOG handler.Upon loading, tree has a proper look. After I select the node and click on the place where checkbox would be, nothing happens ( checkbox does not appear ) which is the...

Removed checkbox reappears in treeview node when spacebar is pressed

31 Mar 2014 by AlwaysLearningNewStuff

I have subclassed the tree view and rejected spacebar if the focused item had no checkbox:LRESULT CALLBACK TreeProc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam, UINT_PTR uIdSubclass, DWORD_PTR dwRefData ){ switch (message) { case WM_KEYDOWN: { ...

Can not obtain dialog's background bitmap from treeview's subclass procedure

4 Apr 2014 by AlwaysLearningNewStuff

I have a dialog box with a bitmap as background.I am trying to create transparent treeview so I need to grab the underlying bitmap from treeview's WM_PAINT handler, but I do not know how to do this.I assume that I will need ScreenToClient and ClientToScreen APIs, but I do not know how to...

Collapse all nodes in treeview, except the last expanded one

14 May 2014 by AlwaysLearningNewStuff

INTRODUCTION AND RELEVANT INFORMATION:I need to implement the following scenario:1. User expands a node, e.g. Node 1;2. User expands another node, e.g. Node 2;3. Collapse previous node ( Node 1 );To visually explain what I mean, we shall use the following example...

Moving a branch in treeview

23 Feb 2015 by AlwaysLearningNewStuff

I have stumbled upon this[^] suggestion that claims following:If I move children of the node to the new node, all their descendants will move with them automatically, so there would be no need for recursive copying of nodes.I really like this idea, but I do not believe it is possible in...

Recreate SQL SELECT query when user checks/unchecks treeview node

1 Aug 2015 by AlwaysLearningNewStuff

INTRODUCTION AND RELEVANT INFORMATION:Before I start, it is important to introduce example SQL table that will be used in this question to illustrate the problems I face: Table SQL table populated with some records looks like below: ID |...

How to add the last node in a tree view?C#Error while adding last node what could be the reason?

7 Mar 2014 by Am Gayathri

Am facing one issue, I have one tree view.Inside that i have 3 child nodes. problem here is, data coming properly but the expansion\collapse symbol of last node is not coming (showing red into mark)also am unable to click and collapse that (showing error 'undefined data').If i add a...

Treeview expand/collapde is not working in server.Treeview last node is not working.

12 Mar 2014 by Am Gayathri

I have a treeview that I build programmatically. When running it locally on my SharePoint, I can click the plus button and have the tree node expand. When I deploy the application page to SharePoint, the treeview no longer expands. I have the tree in an updatepanel. Can someone tell me why the...

How to Create TreeView in MVC3

15 Dec 2013 by Amey K Bhatkar

How to create TreeView in MVC

I Have A Table And I Want To Bind In Tree View R ,L And M Sequence Its Binary Data

24 Aug 2015 by Amit Kumar Singh

CREATE TABLE [dbo].[binaryUser]( [id] [int] IDENTITY(1,1) NOT NULL, [joiningDate] [date] NULL, [placement] varchar NULL, [pId] [int] NOT NULL, [cId] [int] NOT NULL, [referBy] [int] NOT NULL)insert into binaryuser values (2015-02-02 ,L ,4 ,5 ,4)insert into binaryuser...

how to attach javascript function to treeview node in runtime

15 Jul 2015 by Amol Gomase

I have a treeview in which, I need to add node runtime with javascript function embeded to it something like thisIf trvProduct.CheckedNodes.Count = 0 Then Dim Newnode As TreeNode = New TreeNode() Newnode.Text = "javascript:

using result of linq to xml query as datasource for TreeView

12 Nov 2012 by Andreas Gieriet

How about...//create a datasource for TreeView or GridView using the xml document in memory.XmlDataSource xmlds = new XmlDataSource();xmlds.Data=xdoc.ToString();xmlsd.ID="SomeGloballyUniqueNameForThisDataSource"; // e.g. "Products"...See also MSDN: XmlDataSource.Data...

How to disable treeview control from selecting?

1 Jun 2011 by Ankit Rajput

Hi,Try this codetreeView.Enabled=false;treeView.Refresh();fillist(files1, ListView1);treeView.Enabled=true;RegardsAR

How to set different colors for each letter inside a TreeViewNode

4 Mar 2012 by Anuja Pawar Indore

Refer this threadhttp://stackoverflow.com/questions/1294014/c-sharp-set-a-treenode-text-in-2-colors[^]http://www.dotnetspider.com/resources/35202-Treeview-nods-Different-Color-using-c-net.aspx[^]

Strange behavior of a Tree View

7 Apr 2014 by Anurag Sinha V

Hello People,I will tell the basic summary as to what I am trying to do.I have a `tree view` inside an `update panel`, which is shown as a pop-up on a button click of a parent page.The user will check some `checkboxes`, will click OK and the selected nodes will be populated in a text...

How to display text in a textbox on mouse click for tree view

11 Oct 2012 by Anusha Sridhar

Hi,I have a tree view. I have to display some contents in the tree view nodes onmouse over using tooltip or popup. Its working. But I want them to be in a fixed position. I tried a lot. But its not working. So I have added a text box with multiline mode and on clicking the node, I want the...

Unable to cast an object of type System.Web.UI.WebControls.TreeNode to Custom node

11 Jul 2011 by Apfelmuuus

No Way! You cant typecast a reference to a TreeNode object to a Node object. You can only typecast a TreeNode reference that refers to a Node object. For Example:TreeNode tn = new Node();Node n = (Node) tn;So make sure that tn refers to a Node object.Regards.

Is there a TreeView control to replace MS ActiveX

19 Aug 2012 by aprice67

HiI have a database that started life in Acc2000 but the TreeView ActiveX component and associated ListView have always been the source of problems when MS update things. Now I want to move away from it.Do you have a version that I can use in Access 2007? I want to use it as a Record...

Is there a TreeView control to replace MS ActiveX

19 Aug 2012 by aprice67

Hi EspenThank you. I don't have Delphi and know nothing about it but I've looked at Virtual Treeview - it look fantastic and ideal for what I want if they can supply it as an ActiveX component... I will ask them.Cheers, Adrian Price

How to avoid searching of Operating system protected files ($RECYLE.BIN) in treeview

25 Sep 2013 by aravind06

I was giving my systems D drive as root for the treeview node, But i am getting the operating system protected files also in the list even if i select the folder option "Dont show the hidden files,folders and drives" , I dont need the operating system protected files in my treeview. Please help...

When treeview data in c# is provided with filesystem and hosted application on server and accessing it from client machine , will it display server system files or local system files?

27 Sep 2013 by aravind06

I created a treeview in asp.net web page and passed the file system as the nodes of the treeview.I would like to know, If the treeview is provided to display the file structure will it dispay my local system file structure or server machine file structure.? Below is my code: Array...

Horizontal Tree view ASP.NET

1 Nov 2010 by arindamrudra

Please check the below link. At the first time I also use the concept from there.http://stackoverflow.com/questions/2572721/recursive-treeview-in-asp-ne[^]

Column treeview with checkbox columns

10 Dec 2013 by ArjanKempes

Hi,I hope someone can help me out. The last days I'm searching for a vb.net treeview control with checkbox columns. Most controls have only one checkbox in front of the treenode. But I need for each node multiple checkboxes. (one in each column)Something link this: tree.jpgDoes...

I want to display TreeView(Master/Detail)selected node Data(SQL Server 2008) to textboxes

19 Nov 2014 by Arkadeep De

Follow this one...though its in C#, but its understandable....Binding Data With ‘TreeView’ Control Asp.net 2.0[^]

Creating Treeview in jQuery

5 Oct 2013 by Arpit Jain

How to create Treeview in jQuery

Silverlight TreeView and Gridview

17 Aug 2010 by Arun India

Hai.. Is there any control which provide the functionality of tree view and grid view.(Suppose there is a tree view, and when I click on a particular node it should display the details on the 'next column'.Like that when i expand or collapse the tree, the corresponding fields in the...

How can i make datagridview row selected on closing or hiding child form which was opened on cell click

3 Dec 2010 by Ashu871

U need to keep index of selected row before opening form to edit, and after make changes again set selected row as index taken before opening editor...

TreeView

13 Oct 2013 by ASP.NET Community

The TreeView control can be used in any situation in which you need to display hierarchical data. For example, you can use this control to provide a

Dynamically Binding Values to TreeView Control

11 Oct 2013 by ASP.NET Community

First Create Two Tables ParentTable and ChildTableParentTable-->ParentId as Primary Key-->ParentNameChildTable -->ParentId as FOREIGN KEY

Populating the TreeView Control With XMLDataSource

11 Oct 2013 by ASP.NET Community

The TreeView is an .NET DataBound Control which is used to display hierarchical data. Can be bound with the The Nodes of this control with the help

Update ItemsSource Linq to SQL WPF

10 Dec 2010 by AspDotNetDev

Use an ObservableCollection (OC) as your ItemsSource. When you add something to the DB, add it to the OC. When you delete from the DB, delete from the OC. When you modify a record in the DB, either replace or modify the item in the OC. If you modify the item (e.g., change properties on it), then...

Tree view in asp.net c sharp

13 Feb 2013 by Avik Ghosh22

TreeNode tno=new TreeNode(string text,string value,string imageurl,string navigateurl,string target)check this part carefully ...

Asp.net Treeview ChildNodes.

14 Mar 2013 by avinash_thakur86

here i have this code where i want to delete all the entries from database which are unchecked in the treeview checkbox. i am able to reach only till the parent nodes.my code doesnt reach till childnodes. kindly help.p.s. i dont want to delete the nodes, i just want to find out which nodes...

Asp.net Treeview ChildNodes.

14 Mar 2013 by avinash_thakur86

i want to delete the database entries of all unchecked nodes including parent and child nodes.

A simple generic TreeList

18 Aug 2010 by B. Verboven

Convert a generic list of (recursive) objects into a simple hierarchical TreeList

A simple generic TreeList

18 Mar 2012 by B. Verboven

This is an alternative for "A simple generic TreeList".

How to reorder treeviewitem by drag&drop in treeview using interactivity.behavior class in WPF

13 Sep 2023 by BabyHai

I have implemented the Drag&Drop from a ListBox to a TreeView. Now I want, for example, after dropping items to TreeView, to drag ListBoxItem2 and drop it in the TreeViewItem1 and vice versa for other two items. I am using Behavior class from...

TreeView Databinding Issue WPF C#

2 May 2013 by bartbartb

I am using WPF, C#, Linq to Sql -- I have a stored procedure and I am trying to bind the results to a treeview two levels deep. Below is some of the code I thought might help understand better, I am not sure if I needed to post this much code, but I can remove the uneeded code. I am having...

How to set separate style for a node that has child and no child of asp tree view in code behind

5 Jul 2012 by Beula Joyce

Hi,I have scenario which binds the Brand, category and sub categories in a treeview dynamically. I have separate styles for RootNode - Brand, ParentNode - Category and ChildNode- SubCategory. Parent Node and Root node should not be clicked only child nodes can be clicked. All this works...

How to set separate style for a node that has child and no child of asp tree view in code behind

5 Jul 2012 by Beula Joyce

Hi,I have solved it by myself. I have created the treeview controls at runtime and that solved my problem.Thank you all for your support

How to bind all the tables in dataset to a single gridview with expand and collapse for all the six tables in dataset

25 May 2017 by Bhola Ram Sahu

It is not possible to bind same gridview with multiple tables. For this purpose, DataRepeater is best idea. Your Header

How to set listobject as datasource to HierarchicalDataTemplate in WPF Windows 8.1 ?

23 Dec 2014 by Bhola S. Parit

How to set listobject as datasource to HierarchicalDataTemplate in WPF Windows 8.1 ?I have a variable that contains the xml data and I want to set that data to my treeview with hierarchy for that I am using HierarchicalDataTemaplate.Provide me solution please.

Handle Treeview MouseDown, ModeMouseClick & Node Double click events at same time.

4 Oct 2011 by BillWoodruff

You may not find these comments an "answer" to your question, but ... I think this is the only way I can be helpful to you, given the limited information you provide.1. I suggest you create a new WinForms project, put a TreeView on it, and define handlers for the TreeView's:BeforeSelect,...

Dynamic Treeview With contextmenu using c#

12 Oct 2011 by BillWoodruff

Google is your friend: [^].The results of this search include recent answers to questions here on CP.

C# TreeView Error Out of Range Index

15 Jan 2012 by BillWoodruff

The first question that comes to mind is: have you searched CP and StackOverFlow and the MS docs for how to data bind to a TreeView ?Second: Are you dealing with a case here where: the possible "depth of nesting" in the TreeView is #2 or #3 ?My impression is that you describe a case...

Class For Treeview in Silverlight

8 Feb 2012 by BillWoodruff

Beginning with .NET 3.0, SilverLight has a TreeView Control[^].CP has articles on SilverLight TreeViews[^], [^], [^]There's a SilverLight TV on CodePlex:[^].

Problem in searching through a tree view in c# win. form

21 Feb 2014 by BillWoodruff

The OP here expressed the goal of finding any TreeNode in a TreeView without recursion, or some form of iteration: that is impossible. What is possible is to minimize the computation involved in searching for TreeNodes by building a "flattened" list of the Nodes. That technique is illustrated...

How to write multiple line in a tree node in treeview in c# win. form

10 May 2014 by BillWoodruff

As you have found out, there is no direct way to have text with multiple lines displayed as the content of a WinForms' TreeView TreeNode.Theoretically you could do this by custom owner-drawing the Node and its Text, and Microsoft has supplied an example of this (but, the example does not...

Treeview node selection using cursor keys

16 Sep 2014 by BillWoodruff

Assuming this is WinForms, and you are using the Microsoft TreeView:This is very easy:private void treeView1_AfterSelect(object sender, TreeViewEventArgs e){ currentNode = e.Node; // if not a root node if (currentNode .Parent != null) { // do your thing...

Creating child node in TreeView using foreach

21 Sep 2015 by BillWoodruff

You could simplify this:private void makeTree(List headings, List items){ foreach (var s0 in headings) { TreeNode newNode = new TreeNode(s0); treeView1.Nodes.Add(newNode); foreach (var s1 in items) { newNode.Nodes.Add(new...

add node to treeview

28 Nov 2015 by BillWoodruff

Instead of using: string p = treeView1.Nodes[i].ToString();use:string p = treeView1.Nodes[i].Text;Calling 'ToString on a 'TreeNode will return something like:"TreeNode: Node0"I suggest you revise your question and clarify:0. you say you have sub-nodes, but the 'for...

C# - parsing string into tree in treeview control

13 Apr 2016 by BillWoodruff

As Sergey suggested, the "big win" here would be to get whatever is producing your data formatted as string into JSON, or XML format; parsing those formats to a Tree data structure, or creating a populated TreeView Control using those formats, is straightforward.If you are going to try and...