TreeViewNodeCollection.Add() Method

Adds a new node with default settings to the collection.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v23.2.dll

NuGet Package: DevExpress.Web

Declaration

C#

public TreeViewNode Add()

VB.NET

Public Function Add As TreeViewNode

Returns

Type	Description
TreeViewNode	A TreeViewNode object representing the newly created node.

Remarks

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

Example

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:

C#

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");
    }
}

ASPX

<dx:ASPxTreeView ID="ASPxTreeView1" runat="server">
</dx:ASPxTreeView>