TTreeNodes

type TTreeNodes = class(TPersistent)

protected

  function InternalAddObject();

Creates or updates a tree node with the specified text and a pointer to data.

  procedure DefineProperties(); override;

  function GetCount;

Gets the value for the Count property.

  function GetOwner; override;

Gets the value for the Owner property.

  procedure SetItem();

Assigns values from the specified tree node to a node in the container.

public

  constructor Create();

Constructor for the class instance.

  destructor Destroy; override;

Destructor for the class instance.

  function Add();

Adds a new tree node as a sibling of the specified node.

  function AddChild();

Adds a tree node with the specified text as a child of the specified parent node.

  function AddChildFirst();

Adds a node with specified text as the first child of the parent node and returns the new node.

  function AddChildObject();

Adds a child node with specified text and data to the parent node and returns the new node.

  function AddChildObjectFirst();

Adds a node with the specified text and data as the first child node in the parent node.

  function AddFirst();

Adds a node with the specified text as the first node at the same level as the sibling node.

  function AddNode();

Adds or inserts a tree node as a sibling to a specified relative node.

  function AddObject();

Adds a node with the specified text and data at the same level as the sibling node.

  function AddObjectFirst();

Adds a node with the specified text and data as the first node at the same level as the sibling node.

  function FindNodeWithData();

Finds a node containing the specified data.

  function FindNodeWithText();

Finds a tree node containing the specified text.

  function FindNodeWithTextPath();

Finds a node with the hierarchical path specified in TextPath.

  function FindTopLvlNode();

Gets a top-level node containing the specified text.

  function GetEnumerator;

Gets the TTreeNodesEnumerator enumerator for the class instance.

  function GetFirstNode;

Gets the first tree node in the container.

  function GetFirstVisibleNode;

Gets the first top-level tree node with its Visible property set to True.

  function GetFirstVisibleEnabledNode;

Gets the first top-level sibling node that is visible and enabled.

  function GetLastExpandedSubNode;

Gets the last visible, enabled, expanded tree node in the node hierarchy.

  function GetLastNode;

Gets the last top-level tree node in the container.

  function GetLastSubNode;

Gets the last child or descendent node in the last top-level node.

  function GetLastVisibleNode;

Gets the last top-level tree node with its Visible property set to True.

  function GetLastVisibleEnabledNode;

Gets the last top-level sibling node that is visible and enabled.

  function GetSelections();

Gets the tree node at the specified position in the list of selected nodes.

  function Insert();

Inserts a tree node with the specified text before the specified node.

  function InsertBehind();

Inserts a new tree node with the specified text just after the specified node.

  function InsertObject();

Inserts a new tree node with the specified text and data just before the specified node.

  function InsertObjectBehind();

Inserts a new tree node with the specified text and data just behind the specified node.

  function IsMultiSelection;

True if the node is part of a multi-selection in the internal selection list.

  procedure Assign(); override;

Implements object persistence for the tree node container.

  procedure BeginUpdate;

Starts an update process for the tree nodes in the container.

  procedure Clear;

Removes tree nodes in the container and its internal cache.

  procedure ClearMultiSelection();

Clears the nodes in a multi-selection and optionally the selected node on the tree view control.

  procedure ConsistencyCheck;

Makes sure all references for nodes in the container are consistent.

  procedure Delete();

Removes the specified tree node from the container.

  procedure EndUpdate;

Finishes an update process for the tree nodes in the container.

  procedure FreeAllNodeData;

Frees the pointer in the Data property for each of the nodes in the container.

  procedure SelectionsChanged();

Adds or removes the specified tree node to / from the internal selections list when its Selected property is changed.

  procedure SelectOnlyThis();

Clears any existing multi-selections and selects the specified node.

  procedure MultiSelect();

Adds nodes relative the specified node to the multi-selection list.

  procedure SortTopLevelNodes();

Sorts the top-level nodes using the specified sorting procedure.

  procedure WriteDebugReport();

WriteDebugReport - for debugging.

  property Count: Integer; [r]

Contains the number of tree nodes in the container.

  property Item []: TTreeNode; default; [r]

Provides indexed access to the TTreeNode instances in the container.

  property KeepCollapsedNodes: Boolean; [rw]

KeepCollapsedNodes - if True, preserves the nodes that have been collapsed.

  property Owner: TCustomTreeView; [r]

The TCustomTreeView control that is the owner of the container.

  property SelectionCount: Cardinal; [r]

Number of tree nodes included in the internal selection list.

  property TopLvlCount: Integer; [r]

The number of tree nodes at the top level of the tree structure.

  property TopLvlItems []: TTreeNode; [rw]

Provides indexed access to tree nodes at the top level of the tree structure.

end;

TTreeNodes

Implements a container for TTreeNode instances.

TPersistent,IFPObserved

TObject

TCustomTreeView.Items

The container with the TTreeNode instances for the control.

TTreeNode

Implements a tree node displayed in a TTreeView control.

TTreeNodesEnumerator

Implements an enumerator for items in the TTreeNodes container.