logo
down
shadow

How to expand a selected treeview node


How to expand a selected treeview node

By : Debashis
Date : November 22 2020, 11:12 AM
around this issue I just coded as below to expand a selected node after a postback. But it is not working. What am I missing? , If I'm correct method FindNode definition is:
code :
public TreeNode FindNode(
string valuePath)


Share : facebook icon twitter icon
WPF Treeview Expand only a first node and selected item?

WPF Treeview Expand only a first node and selected item?


By : user3108434
Date : March 29 2020, 07:55 AM
I wish did fix the issue.
I have different object type to bind and use ViewModel will be to painfull... IMO
Expand selected node after refresh TreeView in C#

Expand selected node after refresh TreeView in C#


By : user3826537
Date : March 29 2020, 07:55 AM
will help you I'm using this with a WinForms TreeView. It saves the nodes expanded state between refreshes:
code :
// Save the path of the expanded tree branches
var savedExpansionState = treeView1.Nodes.GetExpansionState();

treeView1.BeginUpdate();

// TreeView is populated
// ...

// Once it is populated, we need to restore expanded nodes
treeView1.Nodes.SetExpansionState(savedExpansionState);

treeView1.EndUpdate();
public static class TreeViewExtensions
{
    public static List<string> GetExpansionState(this TreeNodeCollection nodes)
    {
        return nodes.Descendants()
                    .Where(n => n.IsExpanded)
                    .Select(n => n.FullPath)
                    .ToList();
    }

    public static void SetExpansionState(this TreeNodeCollection nodes, List<string> savedExpansionState)
    {
        foreach (var node in nodes.Descendants()
                                  .Where(n => savedExpansionState.Contains(n.FullPath)))
        {
            node.Expand();
        }
    }

    public static IEnumerable<TreeNode> Descendants(this TreeNodeCollection c)
    {
        foreach (var node in c.OfType<TreeNode>())
        {
            yield return node;

            foreach (var child in node.Nodes.Descendants())
            {
                yield return child;
            }
        }
    }
}
How do I expand a node (parent node) in an ASP.NET Dynamic TreeView Control upon click of the text of the node?

How do I expand a node (parent node) in an ASP.NET Dynamic TreeView Control upon click of the text of the node?


By : reymon payat
Date : March 29 2020, 07:55 AM
wish help you to fix your issue Sorry forgot getting back to this. I messed around using the built in "TreeView_ToggleNode" javascript function, that gets rendered along with the TreeView Control. Got exactly what I needed.
how to expand the parent nodes of a selected child node on kendo treeview

how to expand the parent nodes of a selected child node on kendo treeview


By : Torben Lajer
Date : March 29 2020, 07:55 AM
Hope this helps If you want to click all ancestors of items which id are in data, add the following lines of code:
code :
var ancestors = $(node).parents("li[role='treeitem']");
$(">div>span>input", ancestors).click();
  data.forEach(function (entry) {
      var treeView = $("#treeview").data('kendoTreeView');
      var dataSource = treeView.dataSource;
      var dataItem = dataSource.get(entry);
      var node = treeView.findByUid(dataItem.uid);
      var checkbox = $("input[type='checkbox']", node)[0];
      checkbox.click();
      var ancestors = $(node).parents("li[role='treeitem']");
      $(">div>span>input", ancestors).click();
  });
Refresh a treeview and expand last selected node

Refresh a treeview and expand last selected node


By : whoansoo kim
Date : March 29 2020, 07:55 AM
should help you out The AfterSelect on the TreeView have a parameter TreeViewEventArgs e. e.Node will return the selected node. eg:
Related Posts Related Posts :
  • Replace a # character with a space and a # character
  • DataGrid SelectedItem and CurrentItem on row change and on loosing focus
  • Parse Json to class with C#
  • Publish .exe with Visual Studio Mac
  • c# out causing a no overload for method error?
  • Which Thread resume the method execution after await in Asp.net Web application
  • How to open Asp.Net project in another computer
  • Azure app registrations - SQL Server permission for C# App
  • How to Submit String with 536000 Characters to API
  • Server side TcpClient's stream.read gets no data when a different client (connected to the same port) sends data
  • Add combo-box in windows form grid view by using LINQ query
  • Remove XLL addin when multiple XLL addins are installed
  • Deserialize dynamic json into generic .NET object
  • How to search node in Jobject
  • Iron Webscraper connects to host but doesn't scrape?
  • Change values from textbox at the touch of a button
  • Data access structure with Entity Framework
  • Link Assemblys failed unexpectedly (Xamarin.ios.dll)
  • ASP.NET Core Razor pages - not binding on POST Request
  • How to update appsettings.json from wix custom actions with the values passed as parameter during command line installat
  • Load undefined images from folders
  • How to add a new button in title bar next the minimize button in UWP?
  • Missing DLL in docker image after copying published tree inside
  • One of the identified items was in an invalid format
  • TLS1.2 does not exist with .NET v4.7
  • How do I parse a XML document into object models?
  • Why is a conditional style being set on a html element by Razor is always html encoded incorrectly
  • Counting the amount of repetitions a letter has in a string
  • How to get the encoding of a file in a repository git via C#?
  • Communication between an Azure web application and a windows form app on Azure VM
  • WCF Service - Client receiving CommunicationException after many requests to localhost
  • How to correctly view pdf in browser using DotVVM?
  • Reading part of json into c# object
  • YoutubeAPI v3 - Setting thumbnail returns Completed status, but no thumbnail is set on video
  • Using the SimpleInjector, is it possible to get a singleton by its implementation type?
  • Why the LogLevel rule is not set for my NLog?
  • Converting short? to TimeSpan
  • Publish build artifact through build.cake instead of Azure Devops
  • Unable to get new token using JWT method (C#)
  • Running HttpRequest synchronously C#
  • How to avoid format in "XDocument.Parse(strHtml)"
  • How to update naviation property with new values in EF Core?
  • Queued function not executing with dequeue
  • How to Control Sequence of columns automatically Generated in DataGrid
  • Getting error when try to add a file from library to main project?
  • Aggregate Roots DDD/UoW/Repo/Service
  • How to change the horizontal movement direction of the player in Unity2D?
  • Getting a two dimensional array of all possible unique combination of numbers lower than a mixmum for each cell starting
  • How to get LDAP nested groups from attribute
  • Get array consisting of first values of a list of tuples
  • How do I pass information from my View to my Controller as a Parameter
  • UWP BarcodeScanner Preview: CaptureElement doesn't show any Preview
  • How to register open generic with custom factory method?
  • Change image via in scriptable object in Unity
  • Decreasing value of one float when other go up
  • Xceed CheckComboBox not properly showing selected values from items hardcoded in XAML
  • Why does char array display contents on console while string and int arrays dont in c#?
  • How to prevent custom filters twice calls?
  • c#: remove brackets of certain size if existing including its content
  • Is there a simple way of handling nested Dictionary<string, object> types where object is either string or another
  • shadow
    Privacy Policy - Terms - Contact Us © festivalmusicasacra.org