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TreeViewNodeCollection.Add() Method

Adds a new node with default settings to the collection.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v24.1.dll

NuGet Package: DevExpress.Web


public TreeViewNode Add()


Type Description

A TreeViewNode object representing the newly created node.


Use the Add method to add a new node with default settings to the end of the TreeViewNodeCollection object.


The code below adds a new node to the ASPxTreeView’s child node collection, initializes its Text property, and then adds child nodes with different sets of defined parameters to the added node.

The image below shows the result:

TreeView - Add methods

using DevExpress.Web.ASPxTreeView;

public partial class MyMail : System.Web.UI.Page
    protected void Page_Load(object sender, EventArgs e) {
    protected void Create_Nodes() {
        TreeViewNode node = ASPxTreeView1.Nodes.Add();
        node.Text = "MyMail";
        node.Nodes.Add("Inbox", "Mail1", "~/Images/Inbox.png", "Inbox.aspx", "_self");
        node.Nodes.Add("Outbox", "Mail2", "~/Images/Outbox.png", "Outbox.aspx");
        node.Nodes.Add("Deleted Items", "Mail3", "~/Images/Deleted.png");
        node.Nodes.Add("Draft", "Mail4");
        node.Nodes.Add("Junk E-mail");
See Also