Node

Jul 29, 2021
2 minutes to read

Nodes correspond to items within the hierarchical data. Nodes are represented by TreeViewNode objects. A node can have its own child nodes collection, available via the TreeViewNode.Nodes property. These child nodes have their own children, etc.

The parent node for all nodes, displayed within the ASPxTreeView , is called the root node. This is a special node which isn’t displayed. The collection of its child nodes can be accessed via the ASPxTreeView.Nodes property.

The node content can include a check box, an image and a text. The table below lists the main properties which affect the node content:

Visual element	Content Members	Appearance Members
Check box	ASPxTreeView.AllowCheckNodes, TreeViewNode.AllowCheck	TreeViewStyles.NodeCheckBox, TreeViewStyles.NodeCheckBoxFocused, TreeViewNode.CheckBoxStyle, TreeViewImages.CheckBoxChecked, TreeViewImages.CheckBoxGrayed, TreeViewImages.CheckBoxUnchecked
Image	ImagePropertiesBase.Url	TreeViewNode.Image, TreeViewNode.ImageStyle, TreeViewImages.NodeImage
Text	TreeViewNode.Text	TreeViewNode.TextStyle, TreeViewNode.TextTemplate, ASPxTreeView.NodeTextTemplate

A node has a set of properties responsible for a node’s state. The tables below list the main properties which specify the node’s state:

States	Server Members	Client Members	Description
Visible	TreeViewNode.Visible	ASPxClientTreeViewNode.GetVisible, ASPxClientTreeViewNode.SetVisible	Gets or sets a value specifying the current node’s visibility.
Enabled	TreeViewNode.Enabled	ASPxClientTreeViewNode.GetEnabled, ASPxClientTreeViewNode.SetEnabled	Gets or sets a value that indicates whether the node is enabled.
Selected	ASPxTreeView.SelectedNode	ASPxClientTreeView.GetSelectedNode, ASPxClientTreeView.SetSelectedNode	Gets or sets the selected node in an ASPxTreeView control.
Checked	TreeViewNode.Checked	ASPxClientTreeViewNode.GetChecked, ASPxClientTreeViewNode.SetChecked	Gets or sets whether the node is checked.
CheckState	TreeViewNode.CheckState	ASPxClientTreeViewNode.GetCheckState	Gets a value that specifies the node check state.
Expanded	TreeViewNode.Expanded	ASPxClientTreeViewNode.GetExpanded, ASPxClientTreeViewNode.SetExpanded	Gets or sets whether the node is expanded.

Member Table

Member Table: Node