docs-desktop/dotnet-desktop-guide/framework/winforms/controls/treeview-control-overview-windows-forms.md

title, ms.date, f1_keywords, helpviewer_keywords, ms.assetid

title	ms.date	f1_keywords	helpviewer_keywords	ms.assetid
TreeView Control Overview	03/30/2017	TreeView	TreeView control [Windows Forms], about TreeView control	0ece823a-9508-478a-bbdb-7d7c3bae51d5

TreeView Control Overview (Windows Forms)

With the Windows Forms xref:System.Windows.Forms.TreeView control, you can display a hierarchy of nodes to users, like the way files and folders are displayed in the left pane of the Windows Explorer feature of the Windows operating system. Each node in the tree view might contain other nodes, called child nodes. You can display parent nodes, or nodes that contain child nodes, as expanded or collapsed. You can also display a tree view with check boxes next to the nodes by setting the tree view's xref:System.Windows.Forms.TreeView.CheckBoxes%2A property to true. You can then programmatically select or clear nodes by setting the node's xref:System.Windows.Forms.TreeNode.Checked%2A property to true or false.

Key Properties

The key properties of the xref:System.Windows.Forms.TreeView control are xref:System.Windows.Forms.TreeView.Nodes%2A and xref:System.Windows.Forms.TreeView.SelectedNode%2A. The xref:System.Windows.Forms.TreeView.Nodes%2A property contains the list of top-level nodes in the tree view. The xref:System.Windows.Forms.TreeView.SelectedNode%2A property sets the currently selected node. You can display icons next to the nodes. The control uses images from the xref:System.Windows.Forms.ImageList named in the tree view's xref:System.Windows.Forms.TreeView.ImageList%2A property. The xref:System.Windows.Forms.TreeView.ImageIndex%2A property sets the default image for nodes in the tree view. For more information about displaying images, see How to: Set Icons for the Windows Forms TreeView Control. If you are using Visual Studio 2005, you have access to a large library of standard images that you can use with the xref:System.Windows.Forms.TreeView control.

See also

• xref:System.Windows.Forms.TreeView
• TreeView Control
• How to: Set Icons for the Windows Forms TreeView Control
• How to: Add and Remove Nodes with the Windows Forms TreeView Control
• How to: Iterate Through All Nodes of a Windows Forms TreeView Control
• How to: Determine Which TreeView Node Was Clicked
• How to: Add Custom Information to a TreeView or ListView Control (Windows Forms)