Export (0) Print
Expand All
This topic has not yet been rated - Rate this topic

TreeNode Constructor (String, TreeNode[])

Initializes a new instance of the TreeNode class with the specified label text and child tree nodes.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)
public TreeNode(
	string text,
	TreeNode[] children
)

Parameters

text
Type: System.String

The label Text of the new tree node.

children
Type: System.Windows.Forms.TreeNode[]

An array of child TreeNode objects.

The text parameter value is assigned to the node's Text property and becomes the tree node label. The tree nodes contained in the children array are added to the TreeNodeCollection stored in the Nodes property.

The following code example creates a root tree node to assign child tree nodes to. A child tree node for each Customer object in an ArrayList is added to the root tree node as well as a child tree node for each Order object assigned to the Customer object. The Customer object is assigned to the Tag property, and the tree nodes representing Customer objects are displayed with Orange text. This example requires that you have a Customer and Order object defined, a TreeView control on a Form, and an ArrayList named customerArray containing Customer objects.

public class Customer
{
   public ArrayList CustomerOrders;
   public string CustomerName;
   public Customer(string myName)
   {
      CustomerName = myName;
      CustomerOrders = new ArrayList(); 
   }
}
public class Order
{
   public string OrderID;
   public Order(string myOrderID )
   {
      this.OrderID = myOrderID;
   }
}

public void AddRootNodes()
{
   // Add a root node to assign the customer nodes to.
   TreeNode rootNode = new TreeNode();
   rootNode.Text = "CustomerList";
   // Add a main root treenode.
   myTreeView.Nodes.Add(rootNode);

   // Add a root treenode for each 'Customer' object in the ArrayList. 
   foreach(Customer myCustomer in customerArray)
   {
      // Add a child treenode for each Order object. 
      int i = 0;
      TreeNode[] myTreeNodeArray = new TreeNode[5];
      foreach(Order myOrder in myCustomer.CustomerOrders)
      {
         myTreeNodeArray[i] = new TreeNode(myOrder.OrderID);
         i++;
      }
      TreeNode customerNode = new TreeNode(myCustomer.CustomerName,
        myTreeNodeArray);
		// Display the customer names with and Orange font.
		customerNode.ForeColor = Color.Orange;
		// Store the Customer object in the Tag property of the TreeNode.
		customerNode.Tag = myCustomer;
      myTreeView.Nodes[0].Nodes.Add(customerNode);
   }
}

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

Community Additions

ADD
Show:
© 2014 Microsoft. All rights reserved.