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TreeNodeCollection.Add Method (String, String, String)

Creates a tree node with the specified key, text, and image, and adds it to the collection.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

public virtual TreeNode Add(
	string key,
	string text,
	string imageKey


Type: System.String
The name of the tree node.
Type: System.String
The text to display in the tree node.
Type: System.String
The image to display in the tree node.

Return Value

Type: System.Windows.Forms.TreeNode
The TreeNode that was added to the collection.

The Name property corresponds to the key for a TreeNode in the TreeNodeCollection.

The tree node is added to the end of the collection. You can also add new TreeNode objects to the collection by using the AddRange or Insert methods.

The imageKey parameter refers to an image in the ImageList property of the parent TreeView.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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