TREEVIEW Element | TreeView Class

This class represents a TreeView control.

Syntax

Visual Basic	Public  Class TreeView Inherits BasePostBackControl
C#	public   class TreeView : BasePostBackControl
Managed C++	public:  __gc class TreeView :  public BasePostBackControl
JScript	public   class TreeView extends BasePostBackControl

Inheritance Hierarchy

Object::Control::WebControl::BaseRichControl::BasePostBackControl

Members Table

The following table lists the members exposed by the TreeView object.

Attribute	Property	Description
AUTOPOSTBACK	AutoPostBack	Sets or retrieves a value that indicates whether or not the control posts back to the server each time a user interacts with the control.
AUTOSELECT	AutoSelect	Sets or retrieves a value that indicates whether or not keyboard hovering selects a node.
CHILDTYPE	ChildType	Sets or retrieves the type of TreeNodeType to use for all descendents.
DEFAULTSTYLE	DefaultStyle	Sets or retrieves a value that indicates the default style for the element.
EXPANDEDIMAGEURL	ExpandedImageUrl	Sets or retrieves the URL of an image to use for expanded nodes.
EXPANDLEVEL	ExpandLevel	Sets or retrieves the number of levels to expand within the TreeView.
	Font	Retrieves the font of the text.
	ForeColor	Sets or retrieves the color of the text.
HOVERSTYLE	HoverStyle	Sets or retrieves a value that indicates the style of the element when the user hovers the keyboard focus or mouse pointer over it.
IMAGEURL	ImageUrl	Sets or retrieves a value that indicates the URL of the image to be displayed on a node or toolbar item.
INDENT	Indent	Sets or retrieves the number of pixels to indent children in relation to the parent node.
	Nodes	Retrieves a collection of TreeNode objects that are in the TreeView.
SELECTEDIMAGEURL	SelectedImageUrl	Sets or retrieves the URL of an image to use for a selected node or TAB.
SELECTEDNODEINDEX	SelectedNodeIndex	Sets or retrieves the index of the selected node.
SELECTEDSTYLE	SelectedStyle	Sets or retrieves a value that indicates the style for the selected element.
SELECTEXPANDS	SelectExpands	Sets or retrieves a value that indicates whether or not a parent node expands or collapses when selected.
SHOWLINES	ShowLines	Sets or retrieves a value that indicates whether or not to display connecting lines between nodes.
SHOWPLUS	ShowPlus	Sets or retrieves a value that indicates whether or not a plus or minus sign renders on parent nodes.
SHOWTOOLTIP	ShowToolTip	Sets or retrieves a bool that indicates whether to show a default ToolTip for each child node.
SYSTEMIMAGESPATH	SystemImagesPath	Sets or retrieves the path to the directory that contains supporting tree images (lines, plus and minus signs, and so on).
TARGET	Target	Sets or retrieves a value that indicates the window or frame at which to target the contents.
	ToolTip	Sets or retrieves the text that displays when the mouse pointer is over the object.
TREENODESRC	TreeNodeSrc	Sets or retrieves a value that indicates the URL of an XML file, string, or XML data island containing TreeNode elements.
	TreeNodeTypes	Retrieves a collection of TreeNodeType objects that are in the TreeView.
TREENODETYPESRC	TreeNodeTypeSrc	Sets or retrieves the URL to an XML file containing TreeNodeType elements.
TREENODEXSLTSRC	TreeNodeXsltSrc	Sets or retrieves the URL to an Extensible Stylesheet Language Transformations (XSLT) file to transform TreeNode elements.

Element	Object	Description
TREENODE	TreeNode	This class represents a TreeNode within a TreeView.
TREENODETYPE	TreeNodeType	This class represents a node type and sets attributes to apply to a node or a group of nodes within a TreeView.
	TreeViewClickEventArgs	This class contains the event arguments for the click event.
	TreeViewSelectEventArgs	This class handles event arguments for the SelectedIndexChange event.

Event	Description
Check	Fires on the tree when a node's check box is clicked.
Collapse	Fires on the tree when an expanded tree node is collapsed.
Expand	Fires on the tree when a collapsed tree node is expanded.
SelectedIndexChange	Fires when the user changes the selected TreeNode on the TreeView.

Method	Description
AddParsedSubObject	Adds a TreeNode to the TreeNodeCollection or a TreeNodeType to the TreeNodeTypeCollection.
ClickEventHandler	Delegate for click events.
CreateControlCollection	Creates an EmptyControlCollection object to prevent controls from being added to the ControlCollection.
DataBind	Binds the data to the TreeNode or the TreeView whether the TreeNode has been expanded or not.
GetNodeFromIndex	Returns the TreeNode object at the specified index.
LoadViewState	Loads the item's previously saved view state.
OnCheck	Fires the Check event on the TreeView object.
OnCollapse	Fires the Collapse event on the TreeView object.
OnExpand	Fires the Expand event on the TreeView object.
OnInit	Initializes the object.
OnLoad	Loads the object.
OnPreRender	Raises the PreRender event.
OnSelectedIndexChange	Fires the SelectedIndexChange event on the TreeView object.
ProcessData	Processes post-back data for the server control from the hidden helper's data.
RaisePostBackEvent	Parses and processes the event arguments passed from the client when the Web form is submitted.
RenderContents	Renders the contents of the control into the specified HtmlTextWriter.
RenderDesignerPath	Implements the rendering path for the Microsoft Visual Studio .NET Editor.
RenderDownLevelPath	Implements the downLevel rendering path in this method.
RenderUpLevelPath	Implements the uplevel rendering path for this method.
SaveViewState	Saves changes to the item's view state to an object.
SelectEventHandler	Delegate for selection events.
TrackViewState	Instructs the control to track changes to its view state.

Class Information

Namespace	Microsoft.Web.UI.WebControls
Assembly	Microsoft.Web.UI.WebControls.dll

See Also

Internet Explorer WebControls, About the TreeView WebControl