TdxTreeCustomNode Class

The base class for tree node classes.

Declaration

TdxTreeCustomNode = class(
    TObject
)

Remarks

This class implements the basic functionality required to create a tree structure.

The TdxTreeCustomNode class members allow you to do the following:

• Add nodes (AddChild, AddChildFirst, and AddNode).

• Delete nodes (Clear, Delete, and DeleteChildren).

• Count node children (Count).

• Access child nodes (Items, First, and Last).

• Sort child nodes (CustomSort).

• Specify the node’s image index (ImageIndex).

• Copy settings between nodes (Assign).

• Access the node’s parent and siblings (Parent, Next, and Prev).

• Check if a node is the node’s ancestor (HasAsParent).

• Show the expand button (HasChildren).

• Expand or collapse the node (Expanded).

• Access the node’s owner (Owner).

• Manage node owner updates (BeginUpdate and EndUpdate).

• Attach data to the node (Data).

• Hide or display the node (Visible).

• Access the tree root (Root).

• Identify if the node is a root (IsRoot).

• Move the node in the tree (MoveTo).

• Obtain the node’s position (Index and Level).

• Load child nodes (LoadChildren).

Do not use the TdxTreeCustomNode class directly. Use the following descendants:

• TdxBreadcrumbEditNode

• TdxTreeViewNode

Inheritance

TObject

TdxTreeCustomNode